National Academies Press: OpenBook

The Growth of World Population: Analysis of the Problems and Recommendations for Research and Training (1963)

Chapter: world population problems, world population problems, the growth of world population.

The population of the world, now somewhat in excess of three billion persons, is growing at about two per cent a year, or faster than at any other period in man’s history. While there has been a steady increase of population growth during the past two or three centuries, it has been especially rapid during the past 20 years. To appreciate the pace of population growth we should recall that world population doubled in about 1,700 years from the time of Christ until the middle of the 17th century; it doubled again in about 200 years, doubled again in less than 100, and, if the current rate of population increase were to remain constant, would double every 35 years. Moreover, this rate is still increasing.

To be sure, the rate of increase cannot continue to grow much further. Even if the death rate were to fall to zero, at the present level of human reproduction the growth rate would not be much in excess of three and one-half per cent per year, and the time required for world population to double would not fall much below 20 years.

Although the current two per cent a year does not sound like an extraordinary rate of increase, a few simple calculations demonstrate that such a rate of increase in human population could not possibly continue for more than a few hundred years. Had this rate existed from the time of Christ to now, the world population would have increased in this period by a factor of about 7×10 16 ; in other words, there would be about 20 million individuals in place of each

person now alive, or 100 people to each square foot. If the present world population should continue to increase at its present rate of two per cent per year, then, within two centuries, there will be more than 150 billion people. Calculations of this sort demonstrate without question not only that the current continued increase in the rate of population growth must cease but also that this rate must decline again. There can be no doubt concerning this long-term prognosis: Either the birth rate of the world must come down or the death rate must go back up.

POPULATION GROWTH IN DIFFERENT PARTS OF THE WORLD

The rates of population growth are not the same, of course, in all parts of the world. Among the industrialized countries, Japan and most of the countries of Europe are now growing relatively slowly—doubling their populations in 50 to 100 years. Another group of industrialized countries—the United States, the Soviet Union, Australia, New Zealand, Canada, and Argentina—are doubling their populations in 30 to 40 years, approximately the world average. The pre-industrial, low-income, and less-developed areas of the world, with two thirds of the world’s population—including Asia (except Japan and the Asiatic part of the Soviet Union), the southwestern Pacific islands (principally the Philippines and Indonesia), Africa (with the exception of European minorities), the Caribbean Islands, and Latin America (with the exception of Argentina and Uruguay)—are growing at rates ranging from moderate to very fast. Annual growth rates in all these areas range from one and one-half to three and one-half per cent, doubling in 20 to 40 years.

The rates of population growth of the various countries of the world are, with few exceptions, simply the differences between their birth rates and death rates. International migration is a negligible factor in rates of growth today. Thus, one can understand the varying rates of population growth of different parts of the world by understanding what underlies their respective birth and death rates.

THE REDUCTION OF FERTILITY AND MORTALITY IN WESTERN EUROPE SINCE 1800

A brief, over-simplified history of the course of birth and death rates in western Europe since about 1800 not only provides a frame of reference for understanding the current birth and death rates in Europe, but also casts some light on the present situation and prospects in other parts of the world. A simplified picture of the population history of a typical western European country is shown in

world population essay

Figure 1 . Schematic presentation of birth and death rates in western Europe after 1800. (The time span varies roughly from 75 to 150 years.)

Figure 1 . The jagged interval in the early death rate and the recent birth rate is intended to indicate that all the rates are subject to substantial annual variation. The birth rate in 1800 was about 35 per 1,000 population and the average number of children ever born to women reaching age 45 was about five. The death rate in 1800 averaged 25 to 30 per 1,000 population although, as indicated, it was subject to variation because of episodic plagues, epidemics, and crop failures. The average expectation of life at birth was 35 years or less. The current birth rate in western European countries is 14 to 20 per 1,000 population with an average of two to three children born to a woman by the end of childbearing. The death rate is 7 to 11 per 1,000 population per year, and the expectation of life at birth is about 70 years. The death rate declined, starting in the late 18th or early 19th century, partly because of better transport and communication, wider markets, and greater productivity, but more directly because of the development of sanitation and, later, modern medicine. These developments, part of the changes in the whole complex of modern civilization, involved scientific and technological advances in many areas, specifically in public health, medicine, agriculture, and industry. The immediate cause of the decline in the birth rate was the increased deliberate control of fertility within marriage. The only important exception to this statement relates to Ireland, where the decline in the birth rate was brought about by an increase of several years in the age at marriage combined with an increase of 10 to 15 per cent in the proportion of people remaining single. The average age at marriage rose to 28 and more than a fourth of Irish women remained unmarried at age 45. In other countries, however, such social changes have had either insignificant or favorable effects on the birth rate. In these countries—England, Wales, Scotland, Scandinavia, the Low Countries, Germany, Switzerland, Austria, and France—the birth rate went down because of the practice of contraception among married couples. It is certain that there was no decline in the reproductive capacity; in fact, with improved health, the contrary is likely.

Only a minor fraction of the decline in western European fertility can be ascribed to the invention of modern techniques of contraception. In the first place, very substantial declines in some European countries antedated the invention and mass manufacture of contraceptive devices. Second, we know from surveys that as recently as just

before World War II more than half of the couples in Great Britain practicing birth control were practicing withdrawal, or coitus interruptus. There is similar direct evidence for other European countries.

In this instance, the decline in fertility was not the result of technical innovations in contraception, but of the decision of married couples to resort to folk methods known for centuries. Thus we must explain the decline in the western European birth rates in terms of why people were willing to modify their sexual behavior in order to have fewer children. Such changes in attitude were doubtless a part of a whole set of profound social and economic changes that accompanied the industrialization and modernization of western Europe. Among the factors underlying this particular change in attitude was a change in the economic consequences of childbearing. In a pre-industrial, agrarian society children start helping with chores at an early age; they do not remain in a dependent status during a long period of education. They provide the principal form of support for the parents in their old age, and, with high mortality, many children must be born to ensure that some will survive to take care of their parents. On the other hand, in an urban, industrialized society, children are less of an economic asset and more of an economic burden.

Among the social factors that might account for the change in attitude is the decline in the importance of the family as an economic unit that has accompanied the industrialization and modernization of Europe. In an industrialized economy, the family is no longer the unit of production and individuals come to be judged by what they do rather than who they are. Children leave home to seek jobs and parents no longer count on support by their children in their old age. As this kind of modernization continues, public education, which is essential to the production of a literate labor force, is extended to women, and thus the traditional subordinate role of women is modified. Since the burden of child care falls primarily on women, their rise in status is probably an important element in the development of an attitude favoring the deliberate limitation of family size. Finally, the social and economic changes characteristic of industrialization and modernization of a country are accompanied by and reinforce a rise of secularism, pragmatism, and rationalism in place of custom and tradition. Since modernization of a nation involves extension of deliberate human control over an increasing range of the environment,

it is not surprising that people living in an economy undergoing industrialization should extend the notion of deliberate and rational control to the question of whether or not birth should result from their sexual activities.

As the simplified representation in Figure 1 indicates, the birth rate in western Europe usually began its descent after the death rate had already fallen substantially. (France is a partial exception. The decline in French births began late in the 18th century and the downward courses of the birth and death rates during the 19th century were more or less parallel.) In general, the death rate appears to be affected more immediately and automatically by industrialization. One may surmise that the birth rate responds more slowly because its reduction requires changes in more deeply seated customs. There is in most societies a consensus in favor of improving health and reducing the incidence of premature death. There is no such consensus for changes in attitudes and behavior needed to reduce the birth rate.

DECLINING FERTILITY AND MORTALITY IN OTHER INDUSTRIALIZED AREAS

The pattern of declining mortality and fertility that we have described for western Europe fits not only the western European countries upon which it is based but also, with suitable adjustment in the initial birth and death rates and in the time scale, eastern and southern Europe (with the exception of Albania), the Soviet Union, Japan, the United States, Australia, Canada, Argentina, and New Zealand. In short, every country that has changed from a predominantly rural agrarian society to a predominantly industrial urban society and has extended public education to near-universality, at least at the primary school level, has had a major reduction in birth and death rates of the sort depicted in Figure 1 .

The jagged line describing the variable current birth rate represents in some instances—notably the United States—a major recovery in the birth rate from its low point. It must be remembered, however, that this recovery has not been caused by a reversion to uncontrolled family size. In the United States, for example, one can scarcely imagine that married couples have forgotten how to employ the contraceptive

techniques that reduced the birth rates to a level of mere replacement just before World War II. We know, in fact, that more couples are skilled in the use of contraception today than ever before. (Nevertheless, effective methods of controlling family size are still unknown and unused by many couples even in the United States.) The recent increase in the birth rate has been the result largely of earlier and more nearly universal marriage, the virtual disappearance of childless and one-child families, and a voluntary choice of two, three, or four children by a vast majority of American couples. There has been no general return to the very large family of pre-industrial times, although some segments of our society still produce many unwanted children.

POPULATION TRENDS IN LESS-DEVELOPED COUNTRIES

We turn now to a comparison of the present situation in the less-developed areas with the demographic circumstances in western Europe prior to the industrial revolution. Figure 2 presents the trends of birth and death rates in the less-developed areas in a rough schematic way similar to that employed in Figure 1 . There are several important differences between the circumstances in today’s less-developed areas and those in pre-industrial Europe. Note first that the birth rate in the less-developed areas is higher than it was in pre-industrial western Europe. This difference results from the fact that in many less-developed countries almost all women at age 35 have married, and at an average age substantially less than in 18th-century Europe. Second, many of the less-developed areas of the world today are much more densely populated than was western Europe at the beginning of the industrial revolution. Moreover, there are few remaining areas comparable to North and South America into which a growing population could move and which could provide rapidly expanding markets. Finally, and most significantly, the death rate in the less-developed areas is dropping very rapidly—a decline that looks almost vertical compared to the gradual decline in western Europe—and without regard to economic change.

The precipitous decline in the death rate that is occurring in the low-income countries of the world is a consequence of the development and application of low-cost public health techniques. Unlike

world population essay

Figure 2 . Schematic presentation of birth and death rates in less-developed countries, mid-20th century. (The steep drop in the death rate from approximately 35 per thousand began at times varying roughly between 1940 and 1960 from country to country.)

the countries of western Europe, the less-developed areas have not had to wait for the slow gradual development of medical science, nor have they had to await the possibly more rapid but still difficult process of constructing major sanitary engineering works and the build-up of a large inventory of expensive hospitals, public health

services, and highly trained doctors. Instead, the less-developed areas have been able to import low-cost measures of controlling disease, measures developed for the most part in the highly industrialized countries. The use of residual insecticides to provide effective protection against malaria at a cost of no more than 25 cents per capita per annum is an outstanding example. Other innovations include antibiotics and chemotherapy, and low-cost ways of providing safe water supplies and adequate environmental sanitation in villages that in most other ways remain relatively untouched by modernization. The death rate in Ceylon was cut in half in less than a decade, and declines approaching this in rapidity are almost commonplace.

The result of a precipitous decline in mortality while the birth rate remains essentially unchanged is, of course, a very rapid acceleration in population growth, reaching rates of three to three and one-half per cent. Mexico’s population, for example, has grown in recent years at a rate of approximately three and one-half per cent a year. This extreme rate is undoubtedly due to temporary factors and would stabilize at not more than three per cent. But even at three per cent per year, two centuries would see the population of Mexico grow to about 13.5 billion people. Two centuries is a long time, however. Might we not expect that long before 200 years had passed the population of Mexico would have responded to modernization, as did the populations of western Europe, by reducing the birth rate? A positive answer might suggest that organized educational efforts to reduce the birth rate are not necessary. But there is a more immediate problem demanding solution in much less than two centuries: Is the current demographic situation in the less-developed countries impeding the process of modernization itself? If so, a course of action that would directly accelerate the decline in fertility becomes an important part of the whole development effort which is directed toward improving the quality of each individual’s life.

POPULATION TRENDS AND THE ECONOMIC DEVELOPMENT OF PRE-INDUSTRIAL COUNTRIES

The combination of high birth rates and low or rapidly declining death rates now found in the less-developed countries implies two different characteristics of the population that have important impli-

cations for the pace of their economic development. One important characteristic is rapid growth, which is the immediate consequence of the large and often growing difference between birth and death rates; the other is the heavy burden of child dependency which results from a high birth rate whether death rates are high or low. A reduced death rate has only a slight effect on the proportion of children in the population, and this effect is in a rather surprising direction. The kinds of mortality reduction that have actually occurred in the world have the effect, if fertility remains unchanged, of reducing rather than increasing the average age of the population.

Mortality reduction produces this effect because the largest increases occur in the survival of infants, and, although the reduction in mortality increases the number of old persons, it increases the number of children even more. The result is that the high fertility found in low-income countries produces a proportion of children under fifteen of 40 to 45 per cent of the total population, compared to 25 per cent or less in most of the industrialized countries.

What do these characteristics of rapid growth and very large proportions of children imply about the capacity to achieve rapid industrialization? It must be noted that it is probably technically possible in every less-developed area to increase national output at rates even more rapid than the very rapid rates of population increase we have discussed, at least for a few years. The reason at least slight increases in per capita income appear feasible is that the low-income countries can import industrial and agricultural technology as well as medical technology. Briefly, the realistic question in the short run does not seem to be whether some increases in per capita income are possible while the population grows rapidly, but rather whether rapid population growth is a major deterrent to a rapid and continuing increase in per capita income.

A specific example will clarify this point. If the birth rate in India is not reduced, its population will probably double in the next 25 or 30 years, increasing from about 450 million to about 900 million. Agricultural experts consider it feasible within achievable limits of capital investment to accomplish a doubling of Indian agricultural output within the next 20 to 25 years. In the same period the output of the non-agricultural part of the Indian economy probably would be slightly more than doubled if the birth rate remained unchanged.

For a generation at least, then, India’s economic output probably can stay ahead of its maximum rate of population increase. This bare excess over the increase in population, however, is scarcely a satisfactory outcome of India’s struggle to achieve economic betterment. The real question is: Could India and the other less-developed areas of the world do substantially better if their birth rates and thus their population growth rates were reduced? Economic analysis clearly indicates that the answer is yes. Any growth of population adds to the rate of increase of national output that must be achieved in order to increase per capita output by any given amount.

To double per capita output in 30 years requires an annual increase in per capita output of 2.3 per cent; if population growth is three per cent a year, then the annual increase in national output must be raised to 5.3 per cent to achieve the desired level of economic growth. In either instance an economy, to grow, must divert effort and resources from producing for current consumption to the enhancement of future productivity. In other words, to grow faster an economy must raise its level of net investment. Net investment is investment in factories, roads, irrigation networks, and fertilizer plants, and also in education and training. The low-income countries find it difficult to mobilize resources for these purposes for three reasons: The pressure to use all available resources for current consumption is great; rapid population growth adds very substantially to the investment targets that must be met to achieve any given rate of increase in material well-being; and the very high proportions of children that result from high fertility demand that a larger portion of national output must be used to support a very large number of non-earning dependents. These dependents create pressure to produce for immediate consumption only. In individual terms, the family with a large number of children finds it more difficult to save, and a government that tries to finance development expenditures out of taxes can expect less support from a population with many children. Moreover, rapid population growth and a heavy burden of child dependency divert investment funds to less productive uses—that is, less productive in the long run. To achieve a given level of literacy in a population much more must be spent on schools. In an expanding population of large families, construction effort must go into housing rather than into factories or power plants.

Thus the combination of continued high fertility and greatly reduced mortality in the less-developed countries raises the levels of investment required while impairing the capacity of the economy to achieve high levels of investment. Economists have estimated that a gradual reduction in the rate of childbearing, totaling 50 per cent in 30 years, would add about 40 per cent to the income per consumer that could be achieved by the end of that time.

To recapitulate, a short-term increase in per capita income may be possible in most less-developed areas, even if the fertility rate is not reduced. Nevertheless, even in the short run, progress will be much faster and more certain if the birth rate falls. In the longer run, economic progress will eventually be stopped and reversed unless the birth rate declines or the death rate increases. Economic progress will be slower and more doubtful if less-developed areas wait for the supposedly inevitable impact of modernization on the birth rate. They run the risk that rapid population growth and adverse age distribution would themselves prevent the achievement of the very modernization they count on to bring the birth rate down.

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Population Growth

Population growth is one of the most important topics we cover at Our World in Data .

For most of human history, the global population was a tiny fraction of what it is today. Over the last few centuries, the human population has gone through an extraordinary change. In 1800, there were one billion people. Today there are more than 8 billion of us.

But after a period of very fast population growth, demographers expect the world population to peak by the end of this century.

On this page, you will find all of our data, charts, and writing on changes in population growth. This includes how populations are distributed worldwide, how this has changed, and what demographers expect for the future.

Related topics

  • Child Mortality
  • Fertility Rate
  • Life Expectancy
  • Age Structure

Key insights on Population Growth

Population cartograms show us where the world’s people are.

Geographical maps show us where the world’s landmasses are; not where people are. That means they don’t always give us an accurate picture of how global living standards are changing.

One way to understand the distribution of people worldwide is to redraw the world map – not based on the area but according to population.

This is shown here as a population cartogram : a geographical presentation of the world where the size of countries is not drawn according to the distribution of land but by the distribution of people. It’s shown for the year 2018.

As the population size rather than the territory is shown in this map, you can see some significant differences when you compare it to the standard geographical map we’re most familiar with. 

Small countries with a high population density increase in size in this cartogram relative to the world maps we are used to – look at Bangladesh, Taiwan, or the Netherlands. Large countries with a small population shrink in size – look for Canada, Mongolia, Australia, or Russia.

You can find more details on this cartogram in our article about it:

Population cartogram world 2 e1538912000147

What you should know about this data

  • This map is based on the United Nation’s 2017 World Population Prospects report. Our interactive charts show population data from the most recent UN revision. This means there may be minor differences between the figures shown on the map and the latest estimates in our other charts.

Population cartogram world

The world population has increased rapidly over the last few centuries

The speed of global population growth over the last few centuries has been staggering. For most of human history, the world population was well under one million. 1

As recently as 12,000 years ago, there were only 4 million people worldwide.

The chart shows the rapid increase in the global population since 1700. 

The one-billion mark wasn’t broken until the early 1800s. It was only a century ago that there were 2 billion people.

Since then, the global population has quadrupled to eight billion.

Around 108 billion people have ever lived on our planet. This means that today’s population size makes up 6.5% of the total number of people ever born. 2

This increase has been the result of advances in living conditions and health that reduced death rates – especially in children – and increases in life expectancy.

  • This data comes from a combination of sources, all detailed in our sources article for our long-term population dataset.

Annual world population since 10 thousand bce 1

Population growth is no longer exponential – it peaked decades ago

There’s a popular misconception that the global population is growing exponentially. But it’s not.

While the global population is still increasing in absolute numbers, population growth peaked decades ago.

In the chart, we see the global population growth rate per year. This is based on historical UN estimates and its medium projection to 2100.

Global population growth peaked in the 1960s at over 2% per year. Since then, rates have more than halved, falling to less than 1%. 

The UN expects rates to continue to fall until the end of the century. In fact, towards the end of the century, it projects negative growth, meaning the global population will shrink instead of grow.

Global population growth, in absolute terms – which is the number of births minus the number of deaths – has also peaked. You can see this in our interactive chart:

2019 revision – world population growth 1700 2100

The world has passed “peak child”

Hans Rosling famously coined the term “ peak child ” for the moment in global demographic history when the number of children stopped increasing.

According to the UN data, the world has passed “peak child”, which is defined as the number of children under the age of five.

The chart shows the UN’s historical estimates and projections of the number of children under five.

It estimates that the number of children in the world peaked in 2017. For the coming decades, demographers expect a decades-long plateau before the number will decline more rapidly in the second half of the century.

  • These projections are sensitive to the assumptions made about future fertility rates worldwide. Find out more from the UN World Population Division .
  • Other sources and scenarios in the UN’s projections suggest that the peak was reached slightly earlier or later. However, most indicate that the world is close to “peak child” and the number of children will not increase in the coming decades.
  • The ‘ups and downs’ in this chart reflect generational effects and ‘baby booms’ when there are large cohorts of women of reproductive age, and high fertility rates. The timing of these transitions varies across the world.

The UN expects the global population to peak by the end of the century

When will population growth come to an end?

The UN’s historical estimates and latest projections for the global population are shown in the chart.

The UN projects that the global population will peak before the end of the century – in 2086, at just over 10.4 billion people.

  • These projections are sensitive to the assumptions made about future fertility and mortality rates worldwide. Find out more from the UN World Population Division .
  • Other sources and scenarios in the UN’s projections can produce a slightly earlier or later peak. Most demographers, however, expect that by the end of the century, the global population will have peaked or slowed so much that population growth will be small.

Explore data on Population Growth

Research & writing.

Population cartogram world

What would the work look like if each country’s area was in proportion to its population?

Featured image world population growth

The world population has increased rapidly in recent centuries. But this is slowing.

Max Roser and Hannah Ritchie

More Key articles on Population Growth

How many people die and how many are born each year.

Hannah Ritchie and Edouard Mathieu

Five key findings from the 2022 UN Population Prospects

Hannah Ritchie, Edouard Mathieu and Lucas Rodés-Guirao

Which countries are most densely populated?

Demographic change.

Screen shot 2021 11 21 at 21.06.10

Hannah Ritchie

Future population region featured 01

Definitions and sources

Population sources featured 01

Edouard Mathieu and Lucas Rodés-Guirao

Population projections thumbnail 01

Other articles related to population growth

Famine victims and world population since 1860

Interactive charts on Population Growth

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December 7, 2022

Global Population Growth Is Slowing Down. Here’s One Reason Why

In 2022 the world’s population hit the eight-billion mark. But such milestones could top out by the end of the century

By Katie Peek

Population curve shows a steady increase since 1960, projected to top out at 10.4 billion before 2100.

Katie Peek; Source: World Population Prospects 2022, United Nations Population Division

On November 15, 2022—as estimated by demographers—the count of humans on this planet reached eight billion. Population growth has been steady over the past few decades, with billion-person marks coming every dozen years or so. But that pattern is changing. Growth is beginning to slow, and experts predict the world's population will top out sometime in the 2080s at about 10.4 billion.

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Credit: Katie Peek; Source: World Population Prospects 2022, United Nations Population Division

That slowdown is partly the result of a shift toward fewer offspring—a phenomenon that is happening almost everywhere around the world, though at different rates. High-income nations now have the lowest birth rates, and the lowest-income nations currently have the highest birth rates. “The gap has continued to widen between wealthy nations and poorer ones,” says Jennifer Sciubba, a social scientist at the Wilson Center in Washington, D.C., who has written about these planetary-scale demographic shifts. “But longer term,” she says, “we're moving toward convergence.” In other words, this disparity among nations' birth rates isn't a permanent chasm. It's a temporary divide that will narrow over the coming decades.

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Many factors contribute to the waxing and waning of the world's population, such as migration, mortality, longevity and other major demographic metrics. Focusing on fertility, however, helps to illuminate why the total number of humans on Earth seems set to fall. Demographers define fertility as the average total number of live births per female individual in a region or country. (In the accompanying graphics, the term “woman” is used to encompass anyone assigned female at birth.) The U.S.'s present fertility rate, for example, is about 1.7; China's is 1.2. Demographers consider a fertility rate of 2.1 to be the replacement rate—that is, the required number of offspring, on average, for a population to hold steady. Today birth rates in the wealthiest countries are below the replacement rate. About 50 percent of all nations fall below the replacement rate, and in 2022 the region with the lowest fertility rate (0.8) was Hong Kong. Over the coming decades most of the rest of the world's countries will likely follow suit. Here's how that might look.

In 1960, when the world's population was three billion, nearly every country had a fertility rate above 2.1 live births per woman.

None

But over the subsequent decades that began to change. A country's fertility rate tends to be correlated with its average income. Wealthier countries were the first to move toward fewer offspring, but lower-income countries are also following the same trend.

None

Here's the picture today, as we crest eight billion.

None

Fertility was especially disparate in higher- and lower-income countries from the 1990s through today. But by the end of this century fertility rates worldwide will reconverge at a lower number.

None

These numbers provide insight into how—and where—the population growth rate is changing. But humanity's future clearly depends on many things besides fertility. For example, people in wealthier nations may produce fewer children, but those offspring tend to consume more resources—so rich countries can still have outsize planetary impacts despite their dwindling populations. Organizations such as the United Nations Department of Economic and Social Affairs—which tracks and predicts human population numbers—are working toward policy-based solutions for how all of us can have healthy, satisfying and sustainable lives on Earth. A clear-eyed understanding of population shifts is critical for reaching that bright future.

Katie Peek is a science journalist and data-visualization designer with degrees in astrophysics and journalism. She is a contributing artist for Scientific American .

Scientific American Magazine Vol 328 Issue 3

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Long Slide Looms for World Population, With Sweeping Ramifications

Fewer babies’ cries. More abandoned homes. Toward the middle of this century, as deaths start to exceed births, changes will come that are hard to fathom.

world population essay

By Damien Cave ,  Emma Bubola and Choe Sang-Hun

All over the world, countries are confronting population stagnation and a fertility bust, a dizzying reversal unmatched in recorded history that will make first-birthday parties a rarer sight than funerals, and empty homes a common eyesore.

Maternity wards are already shutting down in Italy. Ghost cities are appearing in northeastern China. Universities in South Korea can’t find enough students, and in Germany, hundreds of thousands of properties have been razed, with the land turned into parks.

Like an avalanche, the demographic forces — pushing toward more deaths than births — seem to be expanding and accelerating. Though some countries continue to see their populations grow, especially in Africa, fertility rates are falling nearly everywhere else. Demographers now predict that by the latter half of the century or possibly earlier, the global population will enter a sustained decline for the first time.

A planet with fewer people could ease pressure on resources, slow the destructive impact of climate change and reduce household burdens for women. But the census announcements this month from China and the United States , which showed the slowest rates of population growth in decades for both countries, also point to hard-to-fathom adjustments.

The strain of longer lives and low fertility, leading to fewer workers and more retirees, threatens to upend how societies are organized — around the notion that a surplus of young people will drive economies and help pay for the old. It may also require a reconceptualization of family and nation. Imagine entire regions where everyone is 70 or older. Imagine governments laying out huge bonuses for immigrants and mothers with lots of children. Imagine a gig economy filled with grandparents and Super Bowl ads promoting procreation.

“A paradigm shift is necessary,” said Frank Swiaczny, a German demographer who was the chief of population trends and analysis for the United Nations until last year. “Countries need to learn to live with and adapt to decline.”

The ramifications and responses have already begun to appear, especially in East Asia and Europe. From Hungary to China, from Sweden to Japan, governments are struggling to balance the demands of a swelling older cohort with the needs of young people whose most intimate decisions about childbearing are being shaped by factors both positive (more work opportunities for women) and negative (persistent gender inequality and high living costs).

The 20th century presented a very different challenge. The global population saw its greatest increase in known history, from 1.6 billion in 1900 to 6 billion in 2000, as life spans lengthened and infant mortality declined. In some countries — representing about a third of the world’s people — those growth dynamics are still in play. By the end of the century, Nigeria could surpass China in population; across sub-Saharan Africa, families are still having four or five children.

But nearly everywhere else, the era of high fertility is ending. As women have gained more access to education and contraception, and as the anxieties associated with having children continue to intensify, more parents are delaying pregnancy and fewer babies are being born. Even in countries long associated with rapid growth, such as India and Mexico, birthrates are falling toward, or are already below, the replacement rate of 2.1 children per family.

The change may take decades, but once it starts, decline (just like growth) spirals exponentially . With fewer births, fewer girls grow up to have children, and if they have smaller families than their parents did — which is happening in dozens of countries — the drop starts to look like a rock thrown off a cliff.

“It becomes a cyclical mechanism,” said Stuart Gietel Basten, an expert on Asian demographics and a professor of social science and public policy at the Hong Kong University of Science and Technology. “It’s demographic momentum.”

Some countries, like the United States, Australia and Canada, where birthrates hover between 1.5 and 2, have blunted the impact with immigrants. But in Eastern Europe, migration out of the region has compounded depopulation, and in large parts of Asia, the “demographic time bomb” that first became a subject of debate a few decades ago has finally gone off.

South Korea’s fertility rate dropped to a record low of 0.92 in 2019 — less than one child per woman, the lowest rate in the developed world. Every month for the past 59 months, the total number of babies born in the country has dropped to a record depth.

That declining birthrate, coupled with a rapid industrialization that has pushed people from rural towns to big cities, has created what can feel like a two-tiered society. While major metropolises like Seoul continue to grow, putting intense pressure on infrastructure and housing, in regional towns it’s easy to find schools shut and abandoned , their playgrounds overgrown with weeds, because there are not enough children .

Expectant mothers in many areas can no longer find obstetricians or postnatal care centers. Universities below the elite level, especially outside Seoul, find it increasingly hard to fill their ranks — the number of 18-year-olds in South Korea has fallen from about 900,000 in 1992 to 500,000 today. To attract students, some schools have offered scholarships and even iPhones .

To goose the birthrate, the government has handed out baby bonuses. It increased child allowances and medical subsidies for fertility treatments and pregnancy. Health officials have showered newborns with gifts of beef, baby clothes and toys. The government is also building kindergartens and day care centers by the hundreds. In Seoul, every bus and subway car has pink seats reserved for pregnant women.

But this month, Deputy Prime Minister Hong Nam-ki admitted that the government — which has spent more than $178 billion over the past 15 years encouraging women to have more babies — was not making enough progress. In many families, the shift feels cultural and permanent.

“My grandparents had six children, and my parents five, because their generations believed in having multiple children,” said Kim Mi-kyung, 38, a stay-at-home parent. “I have only one child. To my and younger generations, all things considered, it just doesn’t pay to have many children.”

Thousands of miles away, in Italy, the sentiment is similar, with a different backdrop.

In Capracotta, a small town in southern Italy, a sign in red letters on an 18th-century stone building looking on to the Apennine Mountains reads “Home of School Kindergarten” — but today, the building is a nursing home.

Residents eat their evening broth on waxed tablecloths in the old theater room.

“There were so many families, so many children,” said Concetta D’Andrea, 93, who was a student and a teacher at the school and is now a resident of the nursing home. “Now there is no one.”

The population in Capracotta has dramatically aged and contracted — from about 5,000 people to 800. The town’s carpentry shops have shut down. The organizers of a soccer tournament struggled to form even one team.

About a half-hour away, in the town of Agnone, the maternity ward closed a decade ago because it had fewer than 500 births a year, the national minimum to stay open. This year, six babies were born in Agnone.

“Once you could hear the babies in the nursery cry, and it was like music,” said Enrica Sciullo, a nurse who used to help with births there and now mostly takes care of older patients. “Now there is silence and a feeling of emptiness.”

In a speech last Friday during a conference on Italy’s birthrate crisis, Pope Francis said the “demographic winter” was still “cold and dark.”

More people in more countries may soon be searching for their own metaphors. Birth projections often shift based on how governments and families respond, but according to projections by an international team of scientists published last year in The Lancet, 183 countries and territories — out of 195 — will have fertility rates below replacement level by 2100.

Their model shows an especially sharp decline for China, with its population expected to fall from 1.41 billion now to about 730 million in 2100. If that happens, the population pyramid would essentially flip. Instead of a base of young workers supporting a narrower band of retirees, China would have as many 85-year-olds as 18-year-olds.

China’s rust belt, in the northeast, saw its population drop by 1.2 percent in the past decade, according to census figures released on Tuesday. In 2016, Heilongjiang Province became the first in the country to have its pension system run out of money. In Hegang, a “ghost city” in the province that has lost almost 10 percent of its population since 2010, homes cost so little that people compare them to cabbage.

Many countries are beginning to accept the need to adapt, not just resist. South Korea is pushing for universities to merge. In Japan, where adult diapers now outsell ones for babies, municipalities have been consolidated as towns age and shrink. In Sweden, some cities have shifted resources from schools to elder care. And almost everywhere, older people are being asked to keep working. Germany, which previously raised its retirement age to 67, is now considering a bump to 69.

Going further than many other nations, Germany has also worked through a program of urban contraction: Demolitions have removed around 330,000 units from the housing stock since 2002.

And if the goal is revival, a few green shoots can be found. After expanding access to affordable child care and paid parental leave, Germany’s fertility rate recently increased to 1.54, up from 1.3 in 2006. Leipzig, which once was shrinking, is now growing again after reducing its housing stock and making itself more attractive with its smaller scale.

“Growth is a challenge, as is decline,” said Mr. Swiaczny, who is now a senior research fellow at the Federal Institute for Population Research in Germany.

Demographers warn against seeing population decline as simply a cause for alarm. Many women are having fewer children because that’s what they want. Smaller populations could lead to higher wages, more equal societies, lower carbon emissions and a higher quality of life for the smaller numbers of children who are born.

But, said Professor Gietel Basten, quoting Casanova: “There is no such thing as destiny. We ourselves shape our lives.”

The challenges ahead are still a cul-de-sac — no country with a serious slowdown in population growth has managed to increase its fertility rate much beyond the minor uptick that Germany accomplished. There is little sign of wage growth in shrinking countries, and there is no guarantee that a smaller population means less stress on the environment.

Many demographers argue that the current moment may look to future historians like a period of transition or gestation, when humans either did or did not figure out how to make the world more hospitable — enough for people to build the families that they want.

Surveys in many countries show that young people would like to be having more children, but face too many obstacles.

Anna Parolini tells a common story. She left her small hometown in northern Italy to find better job opportunities . Now 37, she lives with her boyfriend in Milan and has put her desire to have children on hold.

She is afraid her salary of less than 2,000 euros a month would not be enough for a family, and her parents still live where she grew up.

“I don’t have anyone here who could help me,” she said. “Thinking of having a child now would make me gasp.”

Elsie Chen, Christopher Schuetze and Benjamin Novak contributed reporting.

Damien Cave is the bureau chief in Sydney, Australia. He previously reported from Mexico City, Havana, Beirut and Baghdad. Since joining The Times in 2004, he has also been a deputy National editor, Miami bureau chief and a Metro reporter. More about Damien Cave

Choe Sang-Hun is the Seoul bureau chief for The New York Times, focusing on news on North and South Korea. More about Choe Sang-Hun

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  • v.5(4); 2013

The world population explosion: causes, backgrounds and projections for the future

J. van bavel.

Centre for Sociological Research / Family & Population Studies (FaPOS), Faculty of Social Sciences, University of Leuven, Parkstraat 45 bus 3601, 3000 Leuven, Belgium.

At the beginning of the nineteenth century, the total world population crossed the threshold of 1 billion people for the first time in the history of the homo sapiens sapiens. Since then, growth rates have been increasing exponentially, reaching staggeringly high peaks in the 20th century and slowing down a bit thereafter. Total world population reached 7 billion just after 2010 and is expected to count 9 billion by 2045. This paper first charts the differences in population growth between the world regions. Next, the mechanisms behind unprecedented population growth are explained and plausible scenarios for future developments are discussed. Crucial for the long term trend will be the rate of decline of the number of births per woman, called total fertility. Improvements in education, reproductive health and child survival will be needed to speed up the decline of total fertility, particularly in Africa. But in all scenarios, world population will continue to grow for some time due to population momentum. Finally, the paper outlines the debate about the consequences of the population explosion, involving poverty and food security, the impact on the natural environment, and migration flows.

Key words: Fertility, family planning, world population, population growth, demographic transition, urbanization, population momentum, population projections.

Introduction

In the year 1900, Belgium and the Philippines had more or less the same population, around 7 million people. By the year 2000, the population of the Western European monarchy had grown to 10 million citizens, while the South East Asian republic at the turn of the century already counted 76 million citizens. The population of Belgium has since then exceeded 11 million citizens, but it is unlikely that this number will rise to 12 million by the year 2050. The population of the Philippines on the other hand will continue to grow to a staggering 127 million citizens by 2050, according to the demographic projections of the United Nations (UN 2013).

The demographic growth rate of the Philippines around the turn of the century (2% a year) has already created enormous challenges and is clearly unsustainable in the long term: such growth implies a doubling of the population every 35 years as a consequence of which there would be 152 million people by 2035, 304 million by 2070, and so on. Nobody expects such a growth to actually occur. This contribution will discuss the more realistic scenarios for the future.

Even the rather modest Belgian demographic growth rate around the turn of this century (0.46%) is not sustainable in the long term. In any case, it exceeds by far the average growth rate of the human species (homo sapiens sapiens) that arose in Africa some 200.000 years ago. Today, earth is inhabited by some 7 billion people. To achieve this number in 200.000 years, the average yearly growth rate over this term should have been around 0.011% annually (so 11 extra human beings per 1.000 human beings already living on earth). The current Belgian growth rate would imply that our country would have grown to 7 billion in less than 1500 years.

The point of this story is that the current growth numbers are historically very exceptional and untenable in the long term. The demographic growth rates are indeed on the decline worldwide and this paper will attempt to explain some of the mechanisms behind that process. That doesn’t change the fact, however, that the growth remains extraordinarily high and the decline in some regions very slow. This is especially the case in Sub Saharan Africa. In absolute numbers, the world population will continue to grow anyway for quite some time as a result of demographic inertia. This too will be further clarified in this paper.

The evolution of the world population in numbers

In order to be sustainable, the long term growth rate of the population should not differ much from 0%. That is because a growth rate exceeding 0% has exponential implications. In simple terms: if a combination of birth and growth figures only appears to cause a modest population growth initially, then this seems to imply an explosive growth in the longer term.

Thomas R. Malthus already acquired this point of view by the end of the 18th century. In his famous “Essay on the Principle of Population” (first edition in 1789), Malthus argues justly that in time the growth of the population will inevitably slow down, either by an increase of the death rate or by a decrease of the birth rate. On a local scale, migration also plays an important role.

It is no coincidence that Malthus’ essay appeared in England at the end of the 18th century. After all, the population there had started to grow at a historically unseen rate. More specifically the proletariat had grown immensely and that worried the intellectuals and the elite. Year after year, new demographic growth records were recorded.

At the beginning of the 19th century, the number of 1 billion people was exceeded for the first time in history. Subsequently growth accelerated and the number of 2 billion people was already surpassed around 1920. By 1960, another billion had been added, in 40 instead of 120 years time. And it continued to go even faster: 4 billion by 1974, 5 billion by 1987, 6 billion by 1999 and 7 billion in 2011 ( Fig. 1 ).

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This will certainly not stop at the current 7 billion. According to the most recent projections by the United Nations, the number of 8 billion will probably be exceeded by 2025, and around 2045 there will be more than 9 billion people 1 . The further one looks into the future, the more uncertain these figures become, and with demography on a world scale one must always take into account a margin of error of a couple of tens of millions. But according to all plausible scenarios, the number of 9 billion will be exceeded by 2050.

Demographic growth was and is not equally distributed around the globe. The population explosion first occurred on a small scale and with a relatively moderate intensity in Europe and America, more or less between 1750 and 1950. From 1950 on, a much more substantial and intensive population explosion started to take place in Asia, Latin America and Africa ( Fig. 2 ). Asia already represented over 55% of the world population in 1950 with its 1.4 billion citizens and by the year 2010 this had increased to 4.2 billion people or 60%. Of those people, more than 1.3 billion live in China and 1.2 billion in India, together accounting for more than one third of the world population.

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In the future, the proportion of Asia will come down and that of Africa will increase. Africa was populated by some 230 million people around 1950, or 9% of the world population. In 2010 there were already more than 1 billion Africans or 15% of the world population. According to UN projections, Africa will continue to grow at a spectacular rate up to 2.2 billion inhabitants in 2050 or 24% of the world population. The proportion of Europe, on the other hand, is evolving in the opposite direction: from 22% of the world population in 1950, over 11% in 2010 to an expected mere 8% in 2050. The population of Latin America has grown and is growing rapidly in absolute terms, but because of the strong growth in Asia and especially Africa, the relative proportion of the Latin American population is hardly increasing (at most from 6 to 8%). The proportion of the population in North America, finally, has decreased slightly from 7 to 5% of the world population.

What these figures mainly come down to in practice is that the population size in especially the poor countries is increasing at an unprecedented rate. At the moment, more than 5.7 billion people, or more than 80% of humanity, are living in what the UN categorise as a developing country. By 2050, that number would – according to the projections – have increased to 8 billion people or 86% of the world population. Within this group of developing countries, the group of least developed countries, the poorest countries so to speak, is growing strongly: from 830 million now, up to an expected 1.7 billion in 2050. This comprises very poor countries such as Somalia, Sudan, Liberia, Niger or Togo in Africa; Afghanistan, Bangladesh or Myanmar in Asia; and Haiti in the Caribbean.

The growth of the world population goes hand in hand with global urbanisation: while around the year 1950 less than 30% of people lived in the cities, this proportion has increased to more than 50%. It is expected that this proportion will continue to grow to two thirds around 2050. Latin America is the most urbanised continent (84%), closely followed by North America (82%) and at a distance by Europe (73%). The population density has increased intensely especially in the poorest countries: from 9 people per square km in 1950 to 40 people per square km in 2010 (an increase by 330%) in the poorest countries, while this figure in the rich countries increased from 15 to 23 people per square km (a 50% growth). In Belgium, population density is 358 people per square km and in the Netherlands 400 people per square km; in Rwanda this number is 411, in the Palestinian regions 666 and in Bangladesh an astonishing 1050.

Although the world population will continue to grow in absolute figures for some time – a following paragraph will explain why – the growth rate in percentages in all large world regions is decreasing. In the richer countries, the yearly growth rate has already declined to below 0.3%. On a global scale, the yearly growth rate of more than 2% at the peak around 1965 decreased to around 1% now. A further decline to less than 0.5% by 2050 is expected. In the world’s poorest countries, the demographic growth is still largest: at present around 2.2%. For these countries, a considerable decrease is expected, but the projected growth rate would not fall below 1.5% before 2050. This means, as mentioned above, a massive growth of the population in absolute figures in the world’s poorest countries.

Causes of the explosion: the demographic transition

The cause of, first, the acceleration and, then, the deceleration in population growth is the modern demographic transition: an increasingly growing group of countries has experienced a transition from relatively high to low birth and death rates, or is still in the process of experiencing this. It is this transition that is causing the modern population explosion. Figure 3 is a schematic and strongly simplified representation of the modern demographic transition.

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In Europe, the modern demographic transition started to take place in the middle of the 18th century. Until then, years of extremely high death rates were quite frequent. Extremely high crisis mortality could be the consequence of epidemic diseases or failed harvests and famine, or a combination of both. As a consequence of better hygiene and a better transportation infrastructure (for one, the canals and roads constructed by Austria in the 18th century), amongst other reasons, crisis mortality became less and less frequent. Later on in the 19th century, child survival began to improve. Vaccination against smallpox for example led to an eradication of the disease, with the last European smallpox pandemic dating from 1871. This way, not only the years of crisis mortality became less frequent, but also the average death rate decreased, from an average 30 deaths per 1000 inhabitants in the beginning of the 19th century to around 15 deaths per 1000 citizens by the beginning of the 20th century. In the meantime, the birth rate however stayed at its previous, high level of 30-35 births per 1000 inhabitants.

The death rate went down but the birth rate still didn’t: this caused a large growth in population. It was only near the end of the nineteenth century (a bit earlier in some countries, later in others) that married couples in large numbers started to reduce their number of children. By the middle of the 20th century, the middle class ideal of a two children household had gained enormous popularity and influence. The reaction by the Church, for example in the encyclical Humanae Vitae (1968), came much too late to bring this evolution to a halt.

As a consequence of widespread family planning – made even easier in the sixties by modern hormonal contraceptives – the birth rate started declining as well and the population tended back towards zero growth. Nowadays the end of this transition process has been more than achieved in all European countries, because the fertility has been below replacement level for several decades (the replacement level is the fertility level that would in the long term lead to a birth rate identical to the death rate, if there would be no migration) 2 .

That the population explosion in the developing countries since the second half of the 20th century was so much more intense and massive, is a consequence of the fact that in those countries, the process of demographic transition occurred to a much more extreme extent and on a much larger scale. On the one hand, mortality decreased faster than in Europe. After all, in Europe the decline in mortality was the result of a gradual understanding of the importance of hygiene and afterwards the development of new medical insights. These insights of course already existed at the start of the demographic transitions in Asian, Latin American and African regions, whereby the life expectancy in these regions could grow faster. On the other hand, the total fertility – the average number of children per woman – at the start of the transition was a lot higher in many poor regions than it initially was in Europe. For South Korea, Brasil and the Congo, for example, the total fertility rate shortly after the Second World War (at the start of their demographic transition) is estimated to be 6 children per woman. In Belgium this number was close to 4.5 children per woman by the middle of the nineteenth century. In some developing regions, the fertility and birth rate decreased moderately to very fast, but in other regions this decline took off at an exceptionally sluggish pace – this will be further explained later on. As a consequence of these combinations of factors, in most of these countries the population explosion was much larger than it had been in most European countries.

Scenarios for the future

Nonetheless, the process of demographic transition has reached its second phase in almost all countries in the world, namely the phase of declining fertility and birth rates. In a lot of Asian and Latin American countries, the entire transition has taken place and the fertility level is around or below the replacement level. South Korea for example is currently at 1.2 children per woman and is one of the countries with the lowest fertility levels in the world. In Iran and Brasil the fertility level is currently more or less equal to Belgium’s, that is 1.8 to 1.9 children per woman.

Crucial to the future evolution of the population is the further evolution of the birth rate. Scenarios for the future evolution of the size and age of the population differ according to the hypotheses concerning the further evolution of the birth rate. The evolution of the birth rate is in turn dependent on two things: the further evolution of the total fertility rate (the average number of children per woman) in the first place and population momentum in the second. The latter is a concept I will later on discuss in more detail. The role of the population momentum is usually overlooked in the popular debates, but is of utmost importance in understanding the further evolution of the world population. Population momentum is the reason why we are as good as certain that the world population will continue to grow for a while. The other factor, the evolution of the fertility rate, is much more uncertain but of critical importance in the long term. The rate at which the further growth of the world population can be slowed down is primarily dependent on the extent to which the fertility rates will continue to decline. I will further elaborate on this notion in the next paragraph. After that, I will clarify the notion of population momentum.

Declining fertility

Fertility is going down everywhere in the world, but it’s going down particularly slowly in Africa. A further decline remains uncertain there. Figure 4 shows the evolution per world region between 1950 and 2010, plus the projected evolution until 2050. The numbers before 2010 illustrate three things. First of all, on all continents there is a decline going on. Secondly, this decline is not equal everywhere. And thirdly: the differences between the continents remain large in some cases. Asia and Latin America have seen a similar decline in fertility: from 5.9 children per woman in 1950 to 2.5 at the start of the 21st century. Europe and North America had already gone through the largest part of their demographic transition by the 1950’s. Their fertility level has been below replacement levels for years. Africa has indeed seen a global decrease of fertility, but the average number of children is still at an alarmingly high level: the fertility merely decreased from 6.7 to 5.1 children per woman.

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These continental averages hide a huge underlying diversity in fertility paths. Figure 5 attempts to illustrate this for a number of countries. Firstly let us consider two African countries: the Congo and Niger. As was often the case in Europe in the 19th century, fertility was first on the rise before it started declining. In the Congo this decrease was more extensive, from around 6 children in 1980 to 4 children per woman today, and a further decline to just below three is expected in the next thirty years. Niger is the country where the fertility level remains highest: from 7 it first rose to an average of just below 8 children per woman in the middle of the 1980’s, before decreasing to just above 6.5 today. For the next decades a decline to 4 children per woman is expected. But that is not at all certain: it is dependent on circumstances that will be further explained in a moment. The demographic transition is after all not a law of nature but the result of human actions and human institutions.

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Around 1950, Pakistan and Iran had more or less the same fertility level as Niger, but both countries have seen a considerable decline in the meantime. In Pakistan the level decreased slowly to the current level of 3 children per woman. In Iran the fertility decreased more abruptly, faster and deeper to below the replacement level – Iran today has one of the lowest fertility levels in the world, and a further decline is expected. The Iranian Revolution of 1978 played a crucial role in the history of Iran (Abassi-Shavazi et al., 2009): it brought better education and health care, two essential ingredients for birth control.

Brasil was also one of the countries with very high fertility in the 1950’s – higher than the Congo, for example. The decrease started earlier than in Iran but happened more gradually. Today both countries have the same total fertility, below the replacement level.

Child mortality, education and family planning

Which factors cause the average number of children to go down? The literature concerning explanations for the decrease in fertility is vast and complex, but two factors emerge as crucial in this process: education and child survival.

Considering child survival first: countries combining intensive birth control with very high child mortality are simply non-existent. The statistical association between the level of child mortality and fertility is very tight and strong: in countries with high child mortality, fertility is high, and vice versa. This statistical correlation is very strong because the causal relation goes in both directions; with quick succession of children and therefore a lot of children to take care for, the chances of survival for the infants are lower than in those families with only a limited number of children to take care of – this is a fortiori the case where infrastructure for health care is lacking. A high fertility level thus contributes to a high child mortality. And in the other direction: where survival chances of children improve, the fertility will go down because even those households with a lower number of children have increasing confidence in having descendants in the long term.

It is crucial to understand that the decline in child mortality in the demographic transition always precedes the decline in fertility. Men, women and families cannot be convinced of the benefits of birth control if they don’t have confidence in the survival chances of their children. Better health care is therefore essential, and a lack of good health care is one of the reasons for a persistently high fertility in a country like Niger.

Education is another factor that can cause a decline in fertility. This is probably the most important factor, not just because education is an important humanitarian goal in itself (apart from the demographic effects), but also because with education one can kill two birds with one stone: education causes more birth control but also better child survival (recently clearly demonstrated by Smith-Greenaway (2013), which in its turn will lead to better birth control. The statistical correlation between level of education and level of fertility is therefore very strong.

Firstly, education enhances the motivation for birth control: if parents invest in the education of their children, they will have fewer children, as has been demonstrated. Secondly, education promotes a more forward-looking lifestyle: it will lead people to think on a somewhat longer term, to think about tomorrow, next week and next month, instead of living for the day. This attitude is necessary for effective birth control. Thirdly, education also increases the potential for effective contraception, because birth control doesn’t just happen, especially not when efficient family planning facilities are not or hardly accessible or when there are opposing cultural or family values.

The influence of education on birth control has been demonstrated in a vast number of studies (James et al., 2012). It starts with primary education, but an even larger effect can be attained by investment in secondary education (Cohen, 2008). In a country like Niger, for example, women who didn’t finish primary school have on average 7.8 children. Women who did finish primary school have on average 6.7 children, while women who finished secondary school “only” have 4.6 children ( Fig. 6 ). The fertility of Niger would be a lot lower if more women could benefit from education. The tragedy of that country is that too many people fall in the category of those without a degree of primary school, with all its demographic consequences.

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One achieves with education therefore a plural beneficial demographic effect on top of the important objective of human emancipation in itself. All this is of course not always true but depends on which form of “education”; I assume that we’re talking about education that teaches people the knowledge and skills to better take control of their own destiny.

It is one thing to get people motivated to practice birth control but obtaining actual effective contraception is quite another matter. Information concerning the efficient use of contraceptives and increasing the accessibility and affordability of contraceptives can therefore play an important role. There are an estimated 215 million women who would want to have contraception but don’t have the means (UNFPA, 2011). Investments in services to help with family planning are absolutely necessary and could already have great results in this group of women. But it’s no use to put the cart before the horse: if there is no intention to practice birth control, propaganda for and accessibility of contraception will hardly have any effect, as was demonstrated in the past. In Europe the lion’s share of the decline in fertility was realized with traditional methods, before the introduction of hormonal contraception in the sixties. There is often a problem of lack of motivation for birth control on the one hand, as a result of high child mortality and low schooling rates, and a lack of power in women who may be motivated to limit fertility but are confronted with male resistance on the other (Blanc, 2011; Do and Kurimoto, 2012). Empowerment of women is therefore essential, and education can play an important role in that process as well.

Population momentum

Even if all the people would suddenly practice birth control much more than is currently considered possible, the world population would still continue to grow for a while. This is the consequence of population momentum, a notion that refers to the phenomenon of demographic inertia, comparable to the phenomenon of momentum and inertia in the field of physics. Demographic growth is like a moving train: even when you turn off the engine, the movement will continue for a little while.

The power and direction of population momentum is dependent on the age structure of the population. Compare the population pyramids of Egypt and Germany ( Fig. 7 ). The one for Egypt has a pyramidal shape indeed, but the one for Germany looks more like an onion. As a consequence of high birth rates in the previous decades, the largest groups of Egyptians are to be found below the age of forty; the younger, the more voluminous the generation. Even if the current and future generations of Egyptians would limit their fertility strongly (as is indeed the case), the birth rate in Egypt would still continue to rise for quite some time, just because year after year more and more potential mothers and fathers reach the fertile ages. Egypt therefore clearly has a growth momentum.

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Germany on the other hand has a negative or shrinking momentum: even if the younger generations of Germans would have a larger num ber of children than the generation of their own parents, the birth rate in Germany would still continue to decrease because fewer and fewer potential mothers and fathers reach the fertile ages.

The population momentum on a global scale is positive: even if fertility would decrease overnight to the replacement level, the world population would continue to grow with 40% (from 7 billion to 9.8 billion). Only the rich countries have a shrinking momentum, that is -3%. For Europe the momentum is -7%. The population momentum for the poorest countries in the world is +44%, that of Sub Saharan Africa +46% (Espenshade et al., 2011).

Consequences of the population explosion

The concerns about the consequences of population explosion started in the sixties. Milestone publications were the 1968 book The Population bomb by biologist Paul Ehrlich, the report of the Club of Rome from 1972 (The Limits to Growth) and the first World Population Plan of Action of the UN in 1974 among others.

In the world population debate, the general concerns involve mainly three interconnected consequences of the population explosion: 1) the growing poverty in the world and famine; 2) the exhaustion and pollution of natural resources essential to human survival; and 3) the migration pressure from the poor South to the rich North (Van Bavel, 2004).

Poverty and famine

The Malthusian line of thought continues to leave an important mark on the debate regarding the association between population growth and poverty: Malthus saw an excessive population growth as an important cause of poverty and famine. Rightfully this Malthusian vision has been criticized a lot. One must after all take the reverse causal relation into account as well: poverty and the related social circumstances (like a lack of education and good health care for children) contribute to high population growth as well.

Concerning famine: the production of food has grown faster since 1960 than the world population has, so nowadays the amount of food produced per person exceeds that which existed before the population explosion (Lam, 2011). The problem of famine isn’t as much an insufficient food production as it is a lack of fair distribution (and a lack of sustainable production, but that’s another issue). Often regions with famine have ecological conditions permitting sufficient production of food, provided the necessary investments in human resources and technology are made. The most important cause of famine is therefore not the population explosion. Famine is primarily a consequence of unequal distribution of food, which in turn is caused by social-economic inequality, lack of democracy and (civil) war.

Poverty and famine usually have mainly political and institutional causes, not demographic ones. The Malthusian vision, that sees the population explosion as the root of all evil, therefore has to be corrected ( Fig. 8 ). Rapid population growth can indeed hinder economical development and can thus pave the way for poverty. But this is only part of the story. As mentioned, poverty is also an underlying cause of rapid population growth. Social factors are at the base of both poverty and population growth. It’s those social factors that require our intervention: via investments in education and (reproductive) health care.

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Impact on the environment

The impact of the population explosion on the environment is unquestionably high, but the size of the population represents only one aspect of this. In this regard it can be useful to keep in mind the simple I=PAT scheme: the ecological footprint or impact on the environment (I) can be regarded as the product of the size of the population (P), the prosperity or consumption level (A for affluence) and the technology used (T). The relationship between each of these factors is more complex than the I=PAT scheme suggests, but in any case the footprint I of a population of 1000 people is for example dependent on how many of those people drive a car instead of a bike, and of the emission per car of the vehicle fleet concerned.

The ecological footprint of the world population has increased tremendously the past decades and the growth of the world population has obviously played an important role in this. The other factors in the I=PAT scheme have however played a relatively bigger role than the demographic factor P. The considerable increase in the Chinese ecological footprint of the past decades for example, is more a consequence of the increased consumption of meat than of population growth (Peters et al., 2007; Liu et al., 2008). The carbon dioxide emission of China grew by 82% between 1990 and 2003, while the population only increased by 11% in that same period. A similar story exists for India: the population grew by less than 23% between 1990 and 2003, while the emission of carbon dioxide increased by more than 83% (Chakravarty et al., 2009). The consumption of water and meat in the world is increasing more rapidly than the population 3 . The consumption of water per person is for example threefold higher in the US than in China (Hoekstra and Chapagain, 2007). The African continent has at present the same number of inhabitants as Europe and North America together, over 1 billion. But the total ecological footprint of Europeans and Americans is many times higher than that of Africans (Ewing et al., 2010). Less than 18% of the world population is responsible for over 50% of the global carbon dioxide emission (Chakravarty et al., 2009).

If we are therefore concerned about the impact of the world population on the environment, we can do something about it immediately by tackling our own overconsumption: it’s something we can control and it has an immediate effect. In contrast, we know of the population growth that it will continue for some time anyhow, even if people in poor countries would practice much more birth control than we consider possible at present.

The population explosion has created an increasing migration pressure from the South to the North – and there is also important migration within and between countries in the South. But here as well the message is: the main responsibility doesn’t lie with the population growth but with economic inequality. The primary motive for migration was and is economic disparity: people migrate from regions with no or badly paid labour and a low standard of living to other regions, where one hopes to find work and a higher standard of living (Massey et al., 1993; Hooghe et al., 2008; IMO, 2013). Given the permanent population growth and economical inequality, a further increasing migration pressure is to be expected, irrespective of the national policies adopted.

It is sometimes expected that economic growth and increasing incomes in the South will slow down the migration pressure, but that remains to be seen. After all, it isn’t usually the poorest citizens in developing countries that migrate to rich countries. It is rather the affluent middle class in poor countries that have the means to send their sons and daughters to the North – an investment that can raise a lot of money via remittances to the families in the country of origin (IMO, 2013). There is after all a considerable cost attached to migration, in terms of money and human capital. Not everyone can bear those costs: to migrate you need brains, guts and money. With growing economic development in poor countries, an initial increase in migration pressure from those countries would be expected; the association between social-economic development and emigration is not linearly negative but follows the shape of a J turned upside down: more emigration at the start of economic development and a decline in emigration only with further development (De Haas, 2007).

7 Billion and counting… What is to be done?

A world population that needed some millennia before reaching the number of 1 billion people, but then added some billions more after 1920 in less than a century: the social, cultural, economic and ecological consequences of such an evolution are so complex that they can lead to fear and indifference at the same time. What kind of constructive reaction is possible and productive in view of such an enormous issue?

First of all: we need to invest in education and health care in Africa and elsewhere, not just as a humanitarian target per se but also because it will encourage the spread of birth control. Secondly, we need to encourage and support the empowerment of women, not just via education but also via services for reproductive health. This has triple desirable results for demographics: it will lead to more and more effective birth control, which in itself has a positive effect on the survival of children, which in turn again facilitates birth control.

Thirdly: because of the positive population momentum, the world population will certainly continue to grow in absolute figures, even though the yearly growth rate in percentages is already on the decline for several years. The biggest contribution we could make therefore, with an immediate favourable impact for ourselves and the rest of the world, is to change our consumption pattern and deal with the structural overconsumption of the world’s richest countries.

(1) Unless otherwise specified, all figures in this paragraph are based on the United Nations World Population Prospects, the 2012 Revision, http://esa.un.org/wpp/ . Concerning projections for the future, I reported the results of the Medium Variant. Apart from this variant, there are also high and low variants (those relying on scenarios implying respectively an extremely high and extremely low growth of the population) and a variant in which the fertility rates are fixed at the current levels. It is expected that the actual number will be somewhere between the highest and lowest variant and will be closest to the medium variant. That’s why I only report this latter value.

(2) In demography, the term «fertility» refers to the actual number of live births per women. By contrast, the term fecundity refers to reproductive capacity (irrespective of actual childbearing), see Habbema et al. (2004).

(3) See http://www.unwater.org/water-cooperation-2013/water-cooperation/facts-and-figures

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  • Population Essay

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Introduction to Population

Population is a very interesting topic to learn. There is no denying the fact that the population of any country is a very strong indicator of how exactly the country will function in the future and what its capabilities are as a nation. Leaders of the world pay a lot of attention to their country’s population for the same reason. The population and the skills that they possess are perhaps some of the most essential assets for any country. The following article is an essay on the topic of population and has been structured in a way that students of all ages can learn and understand the key points that they need to mention whenever they are writing an essay like this. 

Brief on Population

When we talk about a country’s population, we are talking about a lot of things. We are talking about its future workforce, the people that will build the country as a place to live and grow in, we definitely are talking about the future of the entire country. Taking India’s example, when we talk about the population of the country, we are talking about the future of the dream that our freedom fighters dreamt for us as a nation. Together, the entire population of a country has the potential to change the entire landscape of the kinds of work, and jobs that they do. 

The population of a country is responsible for the economical changes and growth in the country and hence is very important. It is also very important to take care of this population. The population needs the right kind of food, healthy environment to grow in and a great and comfortable lifestyle right from the start. Is that something that is possible for everyone? We all know the answer to this. In a country like India, where income disparities are massive, there is no chance for every single section of the population to have a good lifestyle right from the start that can help them grow as individuals. 

The same applies for other countries as well. Every country has an income disparity among the people that live in it and this is what makes the topic of population so interesting. We already know that it is the biggest asset that any country can have, but every country must plan and strategize well to take care of this population so that every single need is being fulfilled. This not only helps the country flourish as a whole, but also increases its chances of becoming successful in the future. 

Population Explosion

The current population of India is around 140 crores. According to certain reports, in the next few years, there will be a solid growth of population in India, and globally too.

The population is the total number of human beings living in a city or the country. It allows knowing how much resources are required by this population to fulfil and other plans needed. Year by year, there has been an explosion of population, which is making it difficult to provide resources to every person living in the country. Low literacy, early marriage and demand for family growth are some of the reasons behind the explosion of the population.  India is the primary ground of population explosion. It covers 17% of the population of the world and is the most populated country.

Reasons Behind the Growth of the Population

There are many reasons for the growth of the population. The low literacy rate is one of the reasons behind this explosion. For example, in India, the literacy rate is relatively low in many states. Many people living in the village fail to complete education and have less knowledge about birth control. They keep on expanding their family.

Moreover, they do not carry much knowledge about birth control techniques or medication. This lack of understanding further leads to a population explosion.

Another primary reason behind the growth of population is child marriage. The custom of child marriage is still followed in many parts of the country. Parents marry off their daughter at an early age, and at a young age, these girls get pregnant. This process continues for a long time.

One of the reasons behind this growth is there are not strict laws in India, unlike other countries. This also makes it hard for citizens to get an equal share of resources.

Impact of Population Explosion

Population explosion causes harm, not only to citizens of the country, but also nature. Increase in population means the need for more space to live, resulting in deforestation. Many cities have lost the green zone to fill it with urban living. Deforestation is leading to the extinction of species and other resources.  Animals are losing their homes, which makes them encroach on cities taking the lives of people.

Subsequently, an increase in population is also leading to population. More and more people are buying vehicles for their convenience, which is resulting in pollution. Massive traffic, congestion on roads and other negative scenes are witnessed in cities.

Population increase also calls for industrialization, which invites pollution in all areas. A country like India is now witnessing a massive problem of pollution and global warming.

Irregular distribution of food to all populations is another significant impact. Many families in rural areas do not get proper food to eat. Many poor kids go to sleep without eating food. This irregular distribution of food is not the scenario only in India, but other developing countries.

How to Control the Population?

One of the ways to control the population is to educate people about its ill effects on the country's resources. Government, along with NGOs, need to visit every rural area of the country to inform people about population control.

Providing birth control kits, education to kids and monetary benefits to families successful in restricting birth can do the needful.

We, humans, often forget how we are going to suffer if the population keeps exploding. If the number keeps rising, then it will be difficult to survive. Citizens need to understand the negative impact of the population explosion. Taking the right measures and keeping the resources in mind will help to control the population.

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FAQs on Population Essay

1. How can the population affect climate change?

A growing population can have a significant impact on climate change. The buildup of human-generated greenhouse gases in the atmosphere is one of the effects of increasing human population. According to one study, there is a deep relationship between population growth and global warming. One child can produce 20 times more greenhouse. Similarly, a child born in the US will add up to 9441 carbon dioxide. This is certainly the most chilling effect of increasing population.

Global warming is the most common fear for today and the coming generation. To stop its growth, controlling the population is essential.

2. How population growth affects the environment?

There is a direct impact of population on the environment. More the population, the more resources are needed. There is a requirement that more space means more deforestation. Population growth also leads to an increase in greenhouse gases, which can affect this planet earth.

Rising sea levels in the coastal region are seen, which eventually leads to flooding. Like these, there are many impacts on the environment due to population growth. In many cities in developing countries, there is a shortage of space. People are not able to find space to live. Moreover, they find it hard to get clean water and are exposed to air pollution and other environmental issues.

3. Will the population increase post-lockdown?

According to the UN report, India will witness a baby boom post-lockdown. The report said, "The pandemic could strain health care capacities for mothers and newborns.” There is an estimate of 116 million babies to be born post-lockdown. The case is not just about India, but China (13.5 million births), Nigeria (6.4 million) and Indonesia (4 million). Post-lockdown, it could be a testing time for developing countries on how the population will affect resources.

4. What are some things that shall be considered while writing an essay on the topic of “Population”?

Whenever you are writing an essay on this topic, make sure that you are highlighting points like how population grows, the impact of this growth, ways to control population and the reasons why population of a country is so important. Once this is done and when you have an idea of what you need to be writing about, start building upon these points. By simply doing this, you will be able to write a brilliant essay. 

Essay on Population Growth for Students and Children

500+ words essay on population growth.

There are currently 7.7 billion people on our planet. India itself has a population of 1.3 billion people. And the population of the world is rising steadily year on year. This increase in the population, i.e. the number of people inhabiting our planet is what we call population growth. In this essay on population growth, we will see the reasons and the effects of this phenomenon on our planet and our societies.

One important feature of population growth is that over the last century it has shown exponential growth. When the pattern of increase is by a fixed quantity, we call this linear growth, for example, 3, 5, 7, 9 and so on. Exponential growth shows an increase by a fixed percentage, for example, 2, 4, 8, 16, 32 and so on. This exponential growth is the reason our population has seen such an immense increase over the past century and a half.

essay on population growth

Causes of Population Growth

To fully understand the phenomenon, in this essay on population growth we will discuss some of its causes. Understanding the reasons for such exponential growth will help us better understand how to plan for the future. So let us begin with one of the main causes, which is the decline in the mortality rate.

Over the last century, we have made some very significant and notable advancements in medicine, science, and technology. We have invented vaccines, found new treatments and even almost completely eradicated some life-threatening diseases. This means that people now have a much higher life expectancy than their ancestors.

Along with the decrease in mortality rate, these advancements in medicine and science have also boosted the birth rates. We now have ways to help those with infertility and reproductive problems. Hence, birth rates around the world have also seen massive improvements. This coupled with slowing mortality rates has caused overpopulation.

Often the lack of proper education is also stated as the culprit of rampant overpopulation. People around the world need to be made aware of the ill-effects of global overpopulation. Values of family planning and sustainable growth needs to be instilled not only in children but adults also. The lack of this awareness and education is one of the reasons for this growth in population.

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Effects of Population Growth

This exponential population growth that our planet has experienced over the last 150 years has had some severe negative effects. The most obvious and common impact is that overpopulation has put a great strain on the natural resources of the earth. As we know, some of the resources available to us come in limited quantities, for example, fossil fuels. When the population explosion happened, these resources are becoming rarer and will one day run out completely.

The increased population had also lead to increased pollution and industrialization . This has adversely affected our natural environment leading to more health problems in the majority of the population. And as the population keeps growing, the poorer countries are running out of food and other resources causing famines and various such disasters.

And as we are currently noticing in India, overpopulation also leads to massive unemployment. Overall the economic and financial condition of densely populated regions deteriorates due to the population explosion.

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Current World Population

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World Population: Past, Present, and Future

The chart above illustrates how world population has changed throughout history. View the full tabulated data.

At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year.

A tremendous change occurred with the industrial revolution: whereas it had taken all of human history until around 1800 for world population to reach one billion , the second billion was achieved in only 130 years (1930), the third billion in 30 years (1960), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987).

  • During the 20th century alone, the population in the world has grown from 1.65 billion to 6 billion.
  • In 1970, there were roughly half as many people in the world as there are now.
  • Because of declining growth rates , it will now take over 200 years to double again.

Wonder how big was the world's population when you were born? Check out this simple wizard or this more elaborated one to find out.

  • World Population Prospects: The 2022 Revision - United Nations Population Division
  • The World at Six Billion, World Population, Year 0 to near stabilization [Pdf file] - United Nations Population Division

Growth Rate

Population in the world is growing at a rate of around 0.91% per year in 2024 (up from 0.88% in 2023, and down from 0.98% in 2020, and 1.06% in 2019). The current population increase is estimated at around 73 million people per year .

World population will therefore continue to grow in the 21st century, but at a much slower rate compared to the recent past . World population has doubled (100% increase) in 40 years from 1959 (3 billion) to 1999 (6 billion). It is now estimated that it will increase by 50% in the subsequent 40 years, to reach 9 billion by 2037.

The latest world population projections indicate that world population will reach 10 billion persons in the year 2057 and 10.4 billion in 2100.

World Population (2024 and historical)

View the complete population historical table

World Population Forecast (2025-2050)

View population projections for all years (up to 2100)

World Population Milestones

10 billion (2058).

The United Nations projects world population will reach 10 billion in the year 2058.

9 Billion (2037)

World population is expected to reach 9 billion in the year 2037.

8.1 Billion (current)

The current world population is 8,105,869,921 as of Sunday, April 28, 2024 according to the most recent United Nations estimates [ 1 ] elaborated by Worldometer. The term "World Population" refers to the human population (the total number of humans currently living) of the world.

8 Billion (2022)

World population has reached 8 billion people on November 15, 2022 according to the United Nations . The U.S. Census Bureau International Database (IDB)  estimates instead that the world population hit 8 billion on September 26, 2023. In their note, they added: " Emphasis on the word estimates. There are many sources of uncertainty in estimating the global population, and it’s unlikely this population milestone was reached on that exact date " [ source ]

7 Billion (2010)

6 billion (1998), previous milestones.

  • 5 Billion : 1987
  • 4 Billion : 1974
  • 3 Billion : 1960
  • 2 Billion : 1930
  • 1 Billion : 1804

Summary Table

World population by region, world population density (people/km 2 ), world population by religion.

According to a recent study (based on the 2010 world population of 6.9 billion) by The Pew Forum , there are:

  • 2,173,180,000 Christians ( 31% of world population), of which 50% are Catholic, 37% Protestant, 12% Orthodox, and 1% other.
  • 1,598,510,000 Muslims (23%) , of which 87-90% are Sunnis, 10-13% Shia.
  • 1,126,500,000 No Religion affiliation (16%) : atheists, agnostics and people who do not identify with any particular religion. One-in-five people (20%) in the United States are religiously unaffiliated.
  • 1,033,080,000 Hindus (15%) , the overwhelming majority (94%) of which live in India.
  •     487,540,000 Buddhists (7%) , of which half live in China.
  •     405,120,000 Folk Religionists (6%) : faiths that are closely associated with a particular group of people, ethnicity or tribe.
  •        58,110,000 Other Religions (1%) : Baha’i faith, Taoism, Jainism, Shintoism, Sikhism, Tenrikyo, Wicca, Zoroastrianism and many others.
  •        13,850,000 Jews (0.2%) , four-fifths of which live in two countries: United States (41%) and Israel (41%).

World Population by Country

How many people have ever lived on earth.

Assuming that we start counting from about 50,000 B.C., the time when modern Homo sapiens appeared on the earth (and not from 700,000 B.C. when the ancestors of Homo sapiens appeared, or several million years ago when hominids were present), taking into account that all population data are a rough estimate, and assuming a constant growth rate applied to each period up to modern times, it has been estimated that a total of approximately 106 billion people have been born since the dawn of the human species, making the population currently alive roughly 6% of all people who have ever lived on planet Earth.

Others have estimated the number of human beings who have ever lived to be anywhere from 45 billion to 125 billion, with most estimates falling into the range of 90 to 110 billion humans.

World Population clock: sources and methodology

The world population counter displayed on Worldometer takes into consideration data from two major sources: the United Nations and the U.S. Census Bureau .

  • The United Nations Population Division of the Department of Economic and Social Affairs every two years calculates, updates, and publishes estimates of total population in its World Population Prospects series. These population estimates and projections provide the standard and consistent set of population figures that are used throughout the United Nations system. The World Population Prospect: the 2022 Revision provides the most recent data available (released in July of 2022). Estimates and projected world population and country specific populations are given from 1950 through 2100 and are released every two years. Worldometer, as it is common practice, utilizes the medium fertility estimates. Data underlying the population estimates are national and sub national census data and data on births, deaths, and migrants available from national sources and publications, as well as from questionnaires. For all countries, census and registration data are evaluated and, if necessary, adjusted for incompleteness by the Population Division as part of its preparations of the official United Nations population estimates and projections.

Why Worldometer's Population Clock is the most accurate

The above world population clock is based on the latest estimates released in July of 2022 by the United Nations. It will show the same number wherever you are in the world and whatever time you set on your PC.

Visitors around the world visiting a PC clock based counter, instead, will see different numbers depending on where they are located. This is the case with other world population clocks - such as the one hosted on a United Nations website, reaching 8 billion in 24 different instances (one per hour) on November 15, 2022, when each local time zone reached 12:10:08. Similarly, in 2011, the clocks on a UN website and on National Geographic - showed 7 billion whenever the visitor's locally set PC clocks reached 4:21:10 AM on October 31, 2011.

Obviously, the UN data is based on estimates and can't be 100% accurate, so in all honesty nobody can possibly say with any degree of certainty on which day world population reached 7 billion (or any other exact number), let alone at what time. But once an estimate is made (based on the best data and analysis available), the world population clock should be showing the same number at any given time anywhere around the world.

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Journalists, researchers and the public often look at society through the lens of generation, using terms like Millennial or Gen Z to describe groups of similarly aged people. This approach can help readers see themselves in the data and assess where we are and where we’re headed as a country.

Pew Research Center has been at the forefront of generational research over the years, telling the story of Millennials as they came of age politically and as they moved more firmly into adult life . In recent years, we’ve also been eager to learn about Gen Z as the leading edge of this generation moves into adulthood.

But generational research has become a crowded arena. The field has been flooded with content that’s often sold as research but is more like clickbait or marketing mythology. There’s also been a growing chorus of criticism about generational research and generational labels in particular.

Recently, as we were preparing to embark on a major research project related to Gen Z, we decided to take a step back and consider how we can study generations in a way that aligns with our values of accuracy, rigor and providing a foundation of facts that enriches the public dialogue.

A typical generation spans 15 to 18 years. As many critics of generational research point out, there is great diversity of thought, experience and behavior within generations.

We set out on a yearlong process of assessing the landscape of generational research. We spoke with experts from outside Pew Research Center, including those who have been publicly critical of our generational analysis, to get their take on the pros and cons of this type of work. We invested in methodological testing to determine whether we could compare findings from our earlier telephone surveys to the online ones we’re conducting now. And we experimented with higher-level statistical analyses that would allow us to isolate the effect of generation.

What emerged from this process was a set of clear guidelines that will help frame our approach going forward. Many of these are principles we’ve always adhered to , but others will require us to change the way we’ve been doing things in recent years.

Here’s a short overview of how we’ll approach generational research in the future:

We’ll only do generational analysis when we have historical data that allows us to compare generations at similar stages of life. When comparing generations, it’s crucial to control for age. In other words, researchers need to look at each generation or age cohort at a similar point in the life cycle. (“Age cohort” is a fancy way of referring to a group of people who were born around the same time.)

When doing this kind of research, the question isn’t whether young adults today are different from middle-aged or older adults today. The question is whether young adults today are different from young adults at some specific point in the past.

To answer this question, it’s necessary to have data that’s been collected over a considerable amount of time – think decades. Standard surveys don’t allow for this type of analysis. We can look at differences across age groups, but we can’t compare age groups over time.

Another complication is that the surveys we conducted 20 or 30 years ago aren’t usually comparable enough to the surveys we’re doing today. Our earlier surveys were done over the phone, and we’ve since transitioned to our nationally representative online survey panel , the American Trends Panel . Our internal testing showed that on many topics, respondents answer questions differently depending on the way they’re being interviewed. So we can’t use most of our surveys from the late 1980s and early 2000s to compare Gen Z with Millennials and Gen Xers at a similar stage of life.

This means that most generational analysis we do will use datasets that have employed similar methodologies over a long period of time, such as surveys from the U.S. Census Bureau. A good example is our 2020 report on Millennial families , which used census data going back to the late 1960s. The report showed that Millennials are marrying and forming families at a much different pace than the generations that came before them.

Even when we have historical data, we will attempt to control for other factors beyond age in making generational comparisons. If we accept that there are real differences across generations, we’re basically saying that people who were born around the same time share certain attitudes or beliefs – and that their views have been influenced by external forces that uniquely shaped them during their formative years. Those forces may have been social changes, economic circumstances, technological advances or political movements.

When we see that younger adults have different views than their older counterparts, it may be driven by their demographic traits rather than the fact that they belong to a particular generation.

The tricky part is isolating those forces from events or circumstances that have affected all age groups, not just one generation. These are often called “period effects.” An example of a period effect is the Watergate scandal, which drove down trust in government among all age groups. Differences in trust across age groups in the wake of Watergate shouldn’t be attributed to the outsize impact that event had on one age group or another, because the change occurred across the board.

Changing demographics also may play a role in patterns that might at first seem like generational differences. We know that the United States has become more racially and ethnically diverse in recent decades, and that race and ethnicity are linked with certain key social and political views. When we see that younger adults have different views than their older counterparts, it may be driven by their demographic traits rather than the fact that they belong to a particular generation.

Controlling for these factors can involve complicated statistical analysis that helps determine whether the differences we see across age groups are indeed due to generation or not. This additional step adds rigor to the process. Unfortunately, it’s often absent from current discussions about Gen Z, Millennials and other generations.

When we can’t do generational analysis, we still see value in looking at differences by age and will do so where it makes sense. Age is one of the most common predictors of differences in attitudes and behaviors. And even if age gaps aren’t rooted in generational differences, they can still be illuminating. They help us understand how people across the age spectrum are responding to key trends, technological breakthroughs and historical events.

Each stage of life comes with a unique set of experiences. Young adults are often at the leading edge of changing attitudes on emerging social trends. Take views on same-sex marriage , for example, or attitudes about gender identity .

Many middle-aged adults, in turn, face the challenge of raising children while also providing care and support to their aging parents. And older adults have their own obstacles and opportunities. All of these stories – rooted in the life cycle, not in generations – are important and compelling, and we can tell them by analyzing our surveys at any given point in time.

When we do have the data to study groups of similarly aged people over time, we won’t always default to using the standard generational definitions and labels. While generational labels are simple and catchy, there are other ways to analyze age cohorts. For example, some observers have suggested grouping people by the decade in which they were born. This would create narrower cohorts in which the members may share more in common. People could also be grouped relative to their age during key historical events (such as the Great Recession or the COVID-19 pandemic) or technological innovations (like the invention of the iPhone).

By choosing not to use the standard generational labels when they’re not appropriate, we can avoid reinforcing harmful stereotypes or oversimplifying people’s complex lived experiences.

Existing generational definitions also may be too broad and arbitrary to capture differences that exist among narrower cohorts. A typical generation spans 15 to 18 years. As many critics of generational research point out, there is great diversity of thought, experience and behavior within generations. The key is to pick a lens that’s most appropriate for the research question that’s being studied. If we’re looking at political views and how they’ve shifted over time, for example, we might group people together according to the first presidential election in which they were eligible to vote.

With these considerations in mind, our audiences should not expect to see a lot of new research coming out of Pew Research Center that uses the generational lens. We’ll only talk about generations when it adds value, advances important national debates and highlights meaningful societal trends.

  • Age & Generations
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Kim Parker is director of social trends research at Pew Research Center

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Essay On Population

Nowadays, population is a major topic of concern for everyone as the population of the world has increased to 8 billion. A population is the total number of people living in a particular area. This count helps the government allocate adequate resources to each area. Here are some sample essays on the topic ' Population' .

Essay On Population

100 Words Essay On Population

Population refers to the total number of people living in a specific area or country. The global population has been increasing rapidly in recent decades and is projected to reach around 9 billion by 2050 . The population growth rate varies by country and region, with some areas experiencing higher rates of growth than others. Population growth can have a significant impact on resources, environment and economy of a country. It also poses challenges such as food and water shortages, housing and infrastructure problems and overburdening of healthcare and education systems. It's important for governments to implement policies to address these issues and ensure sustainable development.

200 Words Essay On Population

The global population has been increasing rapidly in recent decades. According to the United Nations, the world population reached 7.9 billion in 2020 and is projected to reach around 9.7 billion by 2050. This population growth rate varies by country and region, with some areas experiencing higher rates of growth than others. Developing countries tend to have higher population growth rates compared to developed countries.

Impact on Resources

The increasing population has a significant impact on resources. As the population grows, the demand for food, water, and energy increases. This can lead to issues such as food and water shortages, as well as strain on energy resources. Additionally, the increasing population also puts pressure on natural resources, such as forests and land, leading to issues such as deforestation and land degradation.

Impact on Environment

The increasing population also has a significant impact on the environment. As the population grows, so does the amount of waste and pollution produced. This can lead to issues such as air and water pollution, as well as strain on natural systems such as oceans and rivers. Additionally, the increasing population also puts pressure on biodiversity, leading to loss of species and ecosystems.

Impact on Economy

The increasing population also has an impact on the economy. As the population grows, so does the demand for housing, infrastructure, and services such as healthcare and education. This can lead to issues such as housing and infrastructure problems, as well as strain on healthcare and education systems. Additionally, the increasing population can also put pressure on employment and job markets.

500 Words Essay On Population

Population growth: a global phenomenon.

Population refers to the total number of people living in a specific area or country. The global population has been increasing rapidly in recent decades and is projected to reach around 9.7 billion by 2050. This population growth rate varies by country and region, with some areas experiencing higher rates of growth than others. Developing countries tend to have higher population growth rates compared to developed countries.

India's Overpopulation

India, with a population of over 1.3 billion , is facing the consequences of overpopulation. The rapid population growth has put a strain on resources, resulting in issues such as food and water shortages, as well as strain on energy resources. The water crisis in India, where over half of the population is facing high to extreme water stress, is a prime example of how overpopulation can affect the availability of resources. Additionally, the increasing population also puts pressure on infrastructure, leading to issues such as housing and transportation.

China's One-Child Policy

China, with a population of over 1.4 billion, has implemented a one-child policy to control its population growth. The policy, which was in effect from 1979 to 2015, aimed to slow down the population growth and improve the standard of living. While the policy did lead to a decrease in population growth, it also had negative consequences such as a gender imbalance and an aging population.

Singapore's Aging Population

Singapore, with a population of around 5.7 million, has one of the lowest fertility rates in the world. The low fertility rate, coupled with an increasing life expectancy, has led to an aging population. This has put a strain on the country's healthcare and pension systems, as well as the workforce. The government has implemented various measures, such as incentives for couples to have more children and encouraging immigration, to address the issue of an aging population.

Population growth is a global phenomenon that affects not only the resources and environment, but also the economy and society as a whole. It's important for governments to implement policies to address the challenges posed by population growth and ensure sustainable development. This can include investing in infrastructure, implementing measures to reduce pollution and waste, and encouraging family planning and education programs. Additionally, it's important to find sustainable solutions to the challenges posed by population growth in order to ensure a future where everyone has access to the resources they need to live a healthy and fulfilling life.

What Can We Do

As students, there are several ways to educate society about population:

Raise awareness through class projects and presentations: Students can create class projects and presentations that educate their peers and teachers about the issue of population growth. They can present the information in an interactive and engaging way, using real-life examples, statistics, and videos.

Participate in population-related events: Students can participate in population-related events such as seminars, workshops, and conferences. This will give them the opportunity to learn more about the issue and to share their knowledge with others.

Use social media to spread awareness: Social media platforms such as Facebook, Instagram, and Twitter are powerful tools that students can use to raise awareness about population growth. They can create posts and share infographics that educate their peers and the general public about the issue.

Explore Career Options (By Industry)

  • Construction
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Data Administrator

Database professionals use software to store and organise data such as financial information, and customer shipping records. Individuals who opt for a career as data administrators ensure that data is available for users and secured from unauthorised sales. DB administrators may work in various types of industries. It may involve computer systems design, service firms, insurance companies, banks and hospitals.

Bio Medical Engineer

The field of biomedical engineering opens up a universe of expert chances. An Individual in the biomedical engineering career path work in the field of engineering as well as medicine, in order to find out solutions to common problems of the two fields. The biomedical engineering job opportunities are to collaborate with doctors and researchers to develop medical systems, equipment, or devices that can solve clinical problems. Here we will be discussing jobs after biomedical engineering, how to get a job in biomedical engineering, biomedical engineering scope, and salary. 

Ethical Hacker

A career as ethical hacker involves various challenges and provides lucrative opportunities in the digital era where every giant business and startup owns its cyberspace on the world wide web. Individuals in the ethical hacker career path try to find the vulnerabilities in the cyber system to get its authority. If he or she succeeds in it then he or she gets its illegal authority. Individuals in the ethical hacker career path then steal information or delete the file that could affect the business, functioning, or services of the organization.

GIS officer work on various GIS software to conduct a study and gather spatial and non-spatial information. GIS experts update the GIS data and maintain it. The databases include aerial or satellite imagery, latitudinal and longitudinal coordinates, and manually digitized images of maps. In a career as GIS expert, one is responsible for creating online and mobile maps.

Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

Geothermal Engineer

Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.

Database Architect

If you are intrigued by the programming world and are interested in developing communications networks then a career as database architect may be a good option for you. Data architect roles and responsibilities include building design models for data communication networks. Wide Area Networks (WANs), local area networks (LANs), and intranets are included in the database networks. It is expected that database architects will have in-depth knowledge of a company's business to develop a network to fulfil the requirements of the organisation. Stay tuned as we look at the larger picture and give you more information on what is db architecture, why you should pursue database architecture, what to expect from such a degree and what your job opportunities will be after graduation. Here, we will be discussing how to become a data architect. Students can visit NIT Trichy , IIT Kharagpur , JMI New Delhi . 

Remote Sensing Technician

Individuals who opt for a career as a remote sensing technician possess unique personalities. Remote sensing analysts seem to be rational human beings, they are strong, independent, persistent, sincere, realistic and resourceful. Some of them are analytical as well, which means they are intelligent, introspective and inquisitive. 

Remote sensing scientists use remote sensing technology to support scientists in fields such as community planning, flight planning or the management of natural resources. Analysing data collected from aircraft, satellites or ground-based platforms using statistical analysis software, image analysis software or Geographic Information Systems (GIS) is a significant part of their work. Do you want to learn how to become remote sensing technician? There's no need to be concerned; we've devised a simple remote sensing technician career path for you. Scroll through the pages and read.

Budget Analyst

Budget analysis, in a nutshell, entails thoroughly analyzing the details of a financial budget. The budget analysis aims to better understand and manage revenue. Budget analysts assist in the achievement of financial targets, the preservation of profitability, and the pursuit of long-term growth for a business. Budget analysts generally have a bachelor's degree in accounting, finance, economics, or a closely related field. Knowledge of Financial Management is of prime importance in this career.

Underwriter

An underwriter is a person who assesses and evaluates the risk of insurance in his or her field like mortgage, loan, health policy, investment, and so on and so forth. The underwriter career path does involve risks as analysing the risks means finding out if there is a way for the insurance underwriter jobs to recover the money from its clients. If the risk turns out to be too much for the company then in the future it is an underwriter who will be held accountable for it. Therefore, one must carry out his or her job with a lot of attention and diligence.

Finance Executive

Product manager.

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

Operations Manager

Individuals in the operations manager jobs are responsible for ensuring the efficiency of each department to acquire its optimal goal. They plan the use of resources and distribution of materials. The operations manager's job description includes managing budgets, negotiating contracts, and performing administrative tasks.

Stock Analyst

Individuals who opt for a career as a stock analyst examine the company's investments makes decisions and keep track of financial securities. The nature of such investments will differ from one business to the next. Individuals in the stock analyst career use data mining to forecast a company's profits and revenues, advise clients on whether to buy or sell, participate in seminars, and discussing financial matters with executives and evaluate annual reports.

A Researcher is a professional who is responsible for collecting data and information by reviewing the literature and conducting experiments and surveys. He or she uses various methodological processes to provide accurate data and information that is utilised by academicians and other industry professionals. Here, we will discuss what is a researcher, the researcher's salary, types of researchers.

Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

Transportation Planner

A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.

Environmental Engineer

Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems. 

Safety Manager

A Safety Manager is a professional responsible for employee’s safety at work. He or she plans, implements and oversees the company’s employee safety. A Safety Manager ensures compliance and adherence to Occupational Health and Safety (OHS) guidelines.

Conservation Architect

A Conservation Architect is a professional responsible for conserving and restoring buildings or monuments having a historic value. He or she applies techniques to document and stabilise the object’s state without any further damage. A Conservation Architect restores the monuments and heritage buildings to bring them back to their original state.

Structural Engineer

A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software. 

Highway Engineer

Highway Engineer Job Description:  A Highway Engineer is a civil engineer who specialises in planning and building thousands of miles of roads that support connectivity and allow transportation across the country. He or she ensures that traffic management schemes are effectively planned concerning economic sustainability and successful implementation.

Field Surveyor

Are you searching for a Field Surveyor Job Description? A Field Surveyor is a professional responsible for conducting field surveys for various places or geographical conditions. He or she collects the required data and information as per the instructions given by senior officials. 

Orthotist and Prosthetist

Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.

Pathologist

A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.

Veterinary Doctor

Speech therapist, gynaecologist.

Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth. 

Audiologist

The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.

An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.

Are you searching for an ‘Anatomist job description’? An Anatomist is a research professional who applies the laws of biological science to determine the ability of bodies of various living organisms including animals and humans to regenerate the damaged or destroyed organs. If you want to know what does an anatomist do, then read the entire article, where we will answer all your questions.

For an individual who opts for a career as an actor, the primary responsibility is to completely speak to the character he or she is playing and to persuade the crowd that the character is genuine by connecting with them and bringing them into the story. This applies to significant roles and littler parts, as all roles join to make an effective creation. Here in this article, we will discuss how to become an actor in India, actor exams, actor salary in India, and actor jobs. 

Individuals who opt for a career as acrobats create and direct original routines for themselves, in addition to developing interpretations of existing routines. The work of circus acrobats can be seen in a variety of performance settings, including circus, reality shows, sports events like the Olympics, movies and commercials. Individuals who opt for a career as acrobats must be prepared to face rejections and intermittent periods of work. The creativity of acrobats may extend to other aspects of the performance. For example, acrobats in the circus may work with gym trainers, celebrities or collaborate with other professionals to enhance such performance elements as costume and or maybe at the teaching end of the career.

Video Game Designer

Career as a video game designer is filled with excitement as well as responsibilities. A video game designer is someone who is involved in the process of creating a game from day one. He or she is responsible for fulfilling duties like designing the character of the game, the several levels involved, plot, art and similar other elements. Individuals who opt for a career as a video game designer may also write the codes for the game using different programming languages.

Depending on the video game designer job description and experience they may also have to lead a team and do the early testing of the game in order to suggest changes and find loopholes.

Radio Jockey

Radio Jockey is an exciting, promising career and a great challenge for music lovers. If you are really interested in a career as radio jockey, then it is very important for an RJ to have an automatic, fun, and friendly personality. If you want to get a job done in this field, a strong command of the language and a good voice are always good things. Apart from this, in order to be a good radio jockey, you will also listen to good radio jockeys so that you can understand their style and later make your own by practicing.

A career as radio jockey has a lot to offer to deserving candidates. If you want to know more about a career as radio jockey, and how to become a radio jockey then continue reading the article.

Choreographer

The word “choreography" actually comes from Greek words that mean “dance writing." Individuals who opt for a career as a choreographer create and direct original dances, in addition to developing interpretations of existing dances. A Choreographer dances and utilises his or her creativity in other aspects of dance performance. For example, he or she may work with the music director to select music or collaborate with other famous choreographers to enhance such performance elements as lighting, costume and set design.

Social Media Manager

A career as social media manager involves implementing the company’s or brand’s marketing plan across all social media channels. Social media managers help in building or improving a brand’s or a company’s website traffic, build brand awareness, create and implement marketing and brand strategy. Social media managers are key to important social communication as well.

Photographer

Photography is considered both a science and an art, an artistic means of expression in which the camera replaces the pen. In a career as a photographer, an individual is hired to capture the moments of public and private events, such as press conferences or weddings, or may also work inside a studio, where people go to get their picture clicked. Photography is divided into many streams each generating numerous career opportunities in photography. With the boom in advertising, media, and the fashion industry, photography has emerged as a lucrative and thrilling career option for many Indian youths.

An individual who is pursuing a career as a producer is responsible for managing the business aspects of production. They are involved in each aspect of production from its inception to deception. Famous movie producers review the script, recommend changes and visualise the story. 

They are responsible for overseeing the finance involved in the project and distributing the film for broadcasting on various platforms. A career as a producer is quite fulfilling as well as exhaustive in terms of playing different roles in order for a production to be successful. Famous movie producers are responsible for hiring creative and technical personnel on contract basis.

Copy Writer

In a career as a copywriter, one has to consult with the client and understand the brief well. A career as a copywriter has a lot to offer to deserving candidates. Several new mediums of advertising are opening therefore making it a lucrative career choice. Students can pursue various copywriter courses such as Journalism , Advertising , Marketing Management . Here, we have discussed how to become a freelance copywriter, copywriter career path, how to become a copywriter in India, and copywriting career outlook. 

In a career as a vlogger, one generally works for himself or herself. However, once an individual has gained viewership there are several brands and companies that approach them for paid collaboration. It is one of those fields where an individual can earn well while following his or her passion. 

Ever since internet costs got reduced the viewership for these types of content has increased on a large scale. Therefore, a career as a vlogger has a lot to offer. If you want to know more about the Vlogger eligibility, roles and responsibilities then continue reading the article. 

For publishing books, newspapers, magazines and digital material, editorial and commercial strategies are set by publishers. Individuals in publishing career paths make choices about the markets their businesses will reach and the type of content that their audience will be served. Individuals in book publisher careers collaborate with editorial staff, designers, authors, and freelance contributors who develop and manage the creation of content.

Careers in journalism are filled with excitement as well as responsibilities. One cannot afford to miss out on the details. As it is the small details that provide insights into a story. Depending on those insights a journalist goes about writing a news article. A journalism career can be stressful at times but if you are someone who is passionate about it then it is the right choice for you. If you want to know more about the media field and journalist career then continue reading this article.

Individuals in the editor career path is an unsung hero of the news industry who polishes the language of the news stories provided by stringers, reporters, copywriters and content writers and also news agencies. Individuals who opt for a career as an editor make it more persuasive, concise and clear for readers. In this article, we will discuss the details of the editor's career path such as how to become an editor in India, editor salary in India and editor skills and qualities.

Individuals who opt for a career as a reporter may often be at work on national holidays and festivities. He or she pitches various story ideas and covers news stories in risky situations. Students can pursue a BMC (Bachelor of Mass Communication) , B.M.M. (Bachelor of Mass Media) , or  MAJMC (MA in Journalism and Mass Communication) to become a reporter. While we sit at home reporters travel to locations to collect information that carries a news value.  

Corporate Executive

Are you searching for a Corporate Executive job description? A Corporate Executive role comes with administrative duties. He or she provides support to the leadership of the organisation. A Corporate Executive fulfils the business purpose and ensures its financial stability. In this article, we are going to discuss how to become corporate executive.

Multimedia Specialist

A multimedia specialist is a media professional who creates, audio, videos, graphic image files, computer animations for multimedia applications. He or she is responsible for planning, producing, and maintaining websites and applications. 

Quality Controller

A quality controller plays a crucial role in an organisation. He or she is responsible for performing quality checks on manufactured products. He or she identifies the defects in a product and rejects the product. 

A quality controller records detailed information about products with defects and sends it to the supervisor or plant manager to take necessary actions to improve the production process.

Production Manager

A QA Lead is in charge of the QA Team. The role of QA Lead comes with the responsibility of assessing services and products in order to determine that he or she meets the quality standards. He or she develops, implements and manages test plans. 

Process Development Engineer

The Process Development Engineers design, implement, manufacture, mine, and other production systems using technical knowledge and expertise in the industry. They use computer modeling software to test technologies and machinery. An individual who is opting career as Process Development Engineer is responsible for developing cost-effective and efficient processes. They also monitor the production process and ensure it functions smoothly and efficiently.

AWS Solution Architect

An AWS Solution Architect is someone who specializes in developing and implementing cloud computing systems. He or she has a good understanding of the various aspects of cloud computing and can confidently deploy and manage their systems. He or she troubleshoots the issues and evaluates the risk from the third party. 

Azure Administrator

An Azure Administrator is a professional responsible for implementing, monitoring, and maintaining Azure Solutions. He or she manages cloud infrastructure service instances and various cloud servers as well as sets up public and private cloud systems. 

Computer Programmer

Careers in computer programming primarily refer to the systematic act of writing code and moreover include wider computer science areas. The word 'programmer' or 'coder' has entered into practice with the growing number of newly self-taught tech enthusiasts. Computer programming careers involve the use of designs created by software developers and engineers and transforming them into commands that can be implemented by computers. These commands result in regular usage of social media sites, word-processing applications and browsers.

Information Security Manager

Individuals in the information security manager career path involves in overseeing and controlling all aspects of computer security. The IT security manager job description includes planning and carrying out security measures to protect the business data and information from corruption, theft, unauthorised access, and deliberate attack 

ITSM Manager

Automation test engineer.

An Automation Test Engineer job involves executing automated test scripts. He or she identifies the project’s problems and troubleshoots them. The role involves documenting the defect using management tools. He or she works with the application team in order to resolve any issues arising during the testing process. 

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IMAGES

  1. Essay on Population

    world population essay

  2. World Population Day Essay

    world population essay

  3. ⇉Population Growth around the world Essay Example

    world population essay

  4. School essay: World population essay

    world population essay

  5. 🌷 World population essay. World Population Day Essay. 2022-10-19

    world population essay

  6. World Population Essay

    world population essay

VIDEO

  1. Essay On Population in English||10 Lines On Population

  2. Population Growth Essay in English || Essay on Population Growth in English

  3. World Population day

  4. Essay on Population

  5. ಜನಸಂಖ್ಯಾ ಸ್ಫೋಟ ಪ್ರಬಂದ ||Essay on Population // Cause of population

COMMENTS

  1. Essay on World Population: Top 10 Essays

    Essay # 2.Distribution of World's Population: In terms of continents and countries the world's popu­lation is very ill-balanced. More than half of the world's people live in Asia (excluding the U.S.S.R.) which accounts for only one-fifth of the world's land area, while North, Central and South America together, occupying more than a quarter of the land surface, have only one-seventh ...

  2. World population

    In world demographics, the world population is the total number of humans currently living. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022. It took around 300,000 years of human prehistory and history for the human population to reach a billion and only 222 years more to reach 8 billion.

  3. World Population Day Essay

    100 Words Essay On World Population Day. On July 11, the world observes World Population Day. This year's theme is "Investing in Youth." World Population Day is intended to increase awareness and educate people about global population issues. It is important to remember that population growth is not just a problem for developing countries.

  4. World Population Problems

    To appreciate the pace of population growth we should recall that world population doubled in about 1,700 years from the time of Christ until the middle of the 17th century; it doubled again in about 200 years, doubled again in less than 100, and, if the current rate of population increase were to remain constant, would double every 35 years ...

  5. Population Growth

    Population growth is one of the most important topics we cover at Our World in Data. For most of human history, the global population was a tiny fraction of what it is today. Over the last few centuries, the human population has gone through an extraordinary change. In 1800, there were one billion people. Today there are more than 8 billion of us.

  6. Essay on World Population Day for Students and Children

    Get the huge list of more than 500 Essay Topics and Ideas. Significance of World Population Day. In this essay on world population day, we saw the reason and motivation behind such an annual event. Let us now learn about its significance. The most obvious objective behind the world population day is to educate the whole population about the ...

  7. Population Growth Essay for Students in English

    Essay on Population Growth. One of the major problems the world is facing is the problem of the exponential growth of the population. This problem is the greatest one. Most countries in the world are showing a steep rise in population figures. The world's resources are limited and so they cannot support a population beyond a certain limit.

  8. Global Population Growth Is Slowing Down. Here's One Reason Why

    In 1960, when the world's population was three billion, nearly every country had a fertility rate above 2.1 live births per woman. Credit: Katie Peek; Source: World Population Prospects 2022 ...

  9. Essay on Population for Students and Children

    500+ Words Essay on Population. Population refers to the total number of beings living in a particular area. Population helps us get an estimate of the number of beings and how to act accordingly. For instance, if we know the particular population of a city, we can estimate the number of resources it needs.

  10. Long Slide Looms for World Population, With Sweeping Ramifications

    The global population saw its greatest increase in known history, from 1.6 billion in 1900 to 6 billion in 2000, as life spans lengthened and infant mortality declined. In some countries ...

  11. The world population explosion: causes, backgrounds and projections for

    In his famous "Essay on the Principle of Population" (first edition in 1789), Malthus argues justly that in time the growth of the population will inevitably slow down, either by an increase of the death rate or by a decrease of the birth rate. ... A world population that needed some millennia before reaching the number of 1 billion people ...

  12. Population Essay for Students in English

    Population is a very interesting topic to learn. There is no denying the fact that the population of any country is a very strong indicator of how exactly the country will function in the future and what its capabilities are as a nation. Leaders of the world pay a lot of attention to their country's population for the same reason.

  13. Essay on World Population Day

    In the following essay, I will contend that this event plays a pivotal role in illuminating the challenges and opportunities linked to the world's expanding population. The Significance of July 11. World Population Day is observed on July 11th each year. This date was chosen to commemorate the moment when the world's population reached 5 ...

  14. PDF World Population Growth: A Once and Future Global Concern

    1. World World population population growth growth from from 5000 5000 BC to BC 2022. to Data 2022. from Data Worldometer from Worldometer [25]. [25]. Table 1. Population of the world and major areas, 2020, 2030, and 2050, according to the United Nations medium-variant projection. Major Area Population (Millions) 2022.

  15. World Population Day Essay

    Long Essay on World Population Day 500 Words in English. World Population Day essay is convenient for students in grades 7, 8, 9, and 10. The Population all across the world has been increasing in leaps and bounds ever since the emergence of human life on the face of the earth. At the beginning of 1800, the population was recorded at 1 billion.

  16. Population

    population, in human biology, the whole number of inhabitants occupying an area (such as a country or the world) and continually being modified by increases (births and immigrations) and losses (deaths and emigrations). As with any biological population, the size of a human population is limited by the supply of food, the effect of diseases, and other environmental factors.

  17. Essay on Population Growth for Students and Children

    500+ Words Essay on Population Growth. There are currently 7.7 billion people on our planet. India itself has a population of 1.3 billion people. And the population of the world is rising steadily year on year. This increase in the population, i.e. the number of people inhabiting our planet is what we call population growth.

  18. World Population Day Essay

    World Population Day Essay. World Population Day is celebrated on the date of July 11, 2022. The day is commemorated to raise awareness of the effects of Population Growth and other issues such as gender equality, the necessity of family planning, unemployment, maternity care, and human rights. Let's read more about the background, meaning, and ...

  19. Should we control world population? by Diana Coole

    In particular, Coole is clear that from the perspective of environmental sustainability, population size in both developed and developing countries is an issue. Population is a multiplier of ecological harm, and the fact that the number of people, and hence consumers, in the western world has more than doubled since 1900 and more than tripled ...

  20. World Population Essay

    World Population Essay According to the Population Division of the United Nations, world population reached 6,500 million in 2005 and will continue growing by more than 76 million per year, United Nations estimates indicate that by 2050 there will be between 7,700 million and 10,600 million, being the most likely projection of 9,100 million ...

  21. World Population Clock: 8.1 Billion People (LIVE, 2024)

    2024. 0.91. Population in the world is growing at a rate of around 0.91% per year in 2024 (up from 0.88% in 2023, and down from 0.98% in 2020, and 1.06% in 2019). The current population increase is estimated at around 73 million people per year. Annual growth rate reached its peak in the late 1960s, when it was at around 2%.

  22. Estimates of historical world population

    1950 to 2016. After World War II, demographic data of some accuracy becomes available for a significant number of countries, and population estimates are often given as grand totals of numbers (typically given by country) of widely diverging accuracies. Some sources give these numbers rounded to the nearest million or the nearest thousand, while others give them without any rounding.

  23. SWP Report 2024

    UNFPA State of World Population 2024

  24. How Pew Research Center will report on generations moving forward

    ABOUT PEW RESEARCH CENTER Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research.

  25. Essay on Population

    Population Essay - Population refers to the total number of people living in a specific area or country. A population is the total number of people living in a particular area. ... According to the United Nations, the world population reached 7.9 billion in 2020 and is projected to reach around 9.7 billion by 2050. This population growth rate ...

  26. What caused Dubai floods? Experts cite climate change, not cloud

    At least 20 people were reported to have died in the deluge in Oman while another person was said to have died in floods in the UAE that closed government offices and schools for days.