consequences of overpopulation essay

Overpopulation: Causes, Effects and Consequences Essay

Introduction, causes of overpopulation, effects of overpopulation, possible solutions to overpopulation.

Overpopulation is a highly unfavorable condition characterized by the total number of people on Earth exceeding its carrying capacity. Overpopulation is caused by positive changes in people’s welfare: better health care, higher life expectancy, reduced rates of mortality, etc. Technological advances improving the quality of life and increasing lifespan lead to the unceasing population growth. As a result, even wars, natural disasters, and man-made threats are unable to balance birth rates (Pimentel, 2006).

The essay at hand is going to analyze the existing problem investigating its causes and effects. The primary objective is to highlight the deplorable consequences of overpopulation and thereby persuade people not to overpopulate. Possible solutions will also be suggested.

• Reduced death rates. Overpopulation appears when births outnumber deaths. Currently, there are many factors that may increase death rates for a short period of time such as wars or natural calamities. However, the above-mentioned positive factors increasing the number of births are more influential and sustainable (Pimentel, 2006).
• Better health care. Discoveries in medicine help people struggle successfully against a whole range of diseases that were previously considered terminal (Jargin, 2009).
• Need for bigger families to overcome poverty. In the past, poor people gave birth to a lot of children to make up for high mortality rates among babies. Besides, such families always needed working hands. Nowadays, most children survive creating overpopulation (Pimentel, 2006).
• Fertility treatment. It is now possible for partners who are unable to conceive to have a baby after they undergo fertility treatment. Besides, the course of pregnancy is much safer due to technological advances in the field (Pimentel, 2006).
• Immigration. People from developing countries often opt to move to areas more comfortable for living. Although the overall population of the planet remains unchanged with immigration, it creates overcrowded areas and causes resource shortages (Jargin, 2009).
• Neglect of family planning. The population of developing countries is mostly illiterate and is completely unaware of family planning. Besides, people there usually get married at an early age to increase the chances of having more children (Jargin, 2009).

Very few people understand how severe the consequences of overpopulation can be. It is not regarded as a big issue even by the world governments, which do not take measures to prevent it (e.g. China has recently abolished the policy restricting the number of children in a family). However, there exist weighty arguments about why people should stop overpopulation. Some of them are (Kuo, 2012):

• Depletion of natural resources. The current needs for food and water already go far beyond Earth’s capacity. People not only consume more than the planet can offer but also do irreparable damage to the environment (which increases proportionally with the population growth). If we do not stop overpopulation, the planet will run a huge risk of total resource depletion. At present, the lack of resources causes acts of violence at the national scale and provokes global conflicts.
• Destruction of the environment. Overpopulation implies a greater number of vehicles. Their emissions coupled with industrial wastes pollute the air and kill wildlife. Moreover, they create a greenhouse effect and change climatic patterns. Therefore, continuing overpopulation will lead to another global climatic catastrophe, which may result in the extinction of our species.
• Armed conflicts. As has already been mentioned, countries confront one another fighting for resources. Conflicts over water and food lead to starvation.
• Poverty. Overpopulation accounts for aggravation of poverty. A lot of people who survive due to the advancement of medicine live in societies that cannot provide enough resources for a large population. It means that the majority of citizens have to stay below the poverty line. Unless the measures against overpopulation are taken, developing countries will have to deal with the enormous gap between the rich and the poor.
• Increasing unemployment. A growing population needs jobs to earn a living. Unfortunately, the number of vacancies is limited. Staying without any occupation makes people engage in criminal activities such as stealing or even murder.
• High costs of living. Overpopulation exerts a negative influence on the world economy. With more and more babies born every day, the difference between supply and demand becomes huger. Besides, the goods and services produced are not distributed equally: generally, areas that are the most densely populated suffer from the lack of food, clothing, health care, shelter, and basic modern conveniences (leaving alone luxury goods) whereas developed countries encounter the problem of oversaturation. Despite such differences, prices continue to grow everywhere. which means that people are forced to pay more and more to survive. In the long run, unless the problem is solved, huge regions will not be able to afford even basic elements of living.

As it is evident from the analysis, overpopulation deals not only with dissatisfaction caused by having to tolerate more neighbors but rather presents a threat to the whole humanity that will have to encounter wars, poverty, and famine if it fails to find the way out.

No matter how grave the problem might be, there are still measures that can be taken to stop overpopulation. These are (Pencheon, 2012):

• Better awareness. Social changes must begin with attempts to increase awareness of the problem. Governments can impose various policies and laws but their effectiveness will directly depend on the attitude of the mass population. People must understand the necessity to have no more than two children.
• The right to make a reproductive choice. Women must be able to have an abortion if they decide that they cannot afford to raise a child. Voluntary sterilization should also be allowed as an option.
• Promotion of family planning. Since many families simply do not know anything about family planning, it is important to teach them various methods of contraception that make it possible to prevent an undesired pregnancy.
• Introduction of family policies, tax benefits, or concessions. Governments may choose between positive and negative reinforcements: they can introduce policies punishing families that have more children than it is allowed with additional taxes or, on the contrary, they can lower the income tax for those who do not have children or have only one child. Financial motivation is usually very strong and makes people reconsider their decisions.
• Sex education for children. A lot of parents feel embarrassed to discuss sex-related issues with children, which results in dangerous, unprotected sexual activities and unwanted pregnancies. This can be avoided with proper education in the subject.

Human overpopulation now ranges among the most pressing world problems. Without our awareness, it exacerbates the hidden forces that trigger global warming, deterioration of the environment, extinction of species, air pollution, depletion of natural resources, and other damages happening at speeds that are much faster than our planet’s capacity for regeneration. It means that if we continue ignoring the problem, sooner or later we may be left without a place to populate.

Jargin, S. V. (2009). Overpopulation and modern ethics. SAMJ: South African Medical Journal , 99 (8), 572-573.

Kuo, G. (2012). MegaCrisis? Overpopulation Is the Problem. World Future Review , 4 (3), 23-32.

Pencheon, D. (2012). People and planet: from vicious cycle to virtuous circle: Overpopulation, poverty, and environmental degradation share common solutions. BMJ: British Medical Journal , 345 (7864), 9-23.

Pimentel, D. (2006). Overpopulation and sustainability. Petroleum Review , 59 (1), 34-36.

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Overpopulation Essay

500 words essay on overpopulation.

Overpopulation refers to an undesirable condition in which the number of existing human being exceeds the actual carrying capacity of the earth. It has many causes which range from a decline in the death rate to early marriages and more. The overpopulation essay will throw light on this issue.

Ill-Effects of Overpopulation

The ill-effects of overpopulation are quite severe. The first one is that natural resources deplete at a faster level. Our planet can produce only a limited amount of water and food . Thus, overpopulation causes environmental damage including deforestation, pollution, etc.

Similarly, there is the degradation of the environment which happens because of the overuse of resources like coal, oil, natural gases and more. As a result, the quality of air also gets affected in this manner.

In developing countries, overpopulation puts a strain on resources. Thus, it gives rise to conflicts and tension. It also causes more diseases that become harder to control. Next up, we have the issue of unemployment.

Moreover, it rises due to overpopulation. There is more number of people than job opportunities. As a result, unemployment gives rise to crimes like theft and more. We also have pandemics and epidemics which happen due to overpopulation.

It is because overcrowded and unhygienic living gives rise to infectious diseases . Another ill-effect is malnutrition and starvation. When there are scarce resources, these diseases will likely to be on the rise.

Most importantly, we have a shortage of water which makes it tougher for people to get access to clean water. Similarly, lower life expectancy also happens because of the boom in population, especially in less-developed nations.

We also witness faster climate change as nations continue to develop their industrial capacities. Thus, they emit industrial waste which gives rise to global temperatures . It will keep getting worse if things are not checked immediately.

Solutions of Overpopulation

There are many solutions which we may take up to prevent overpopulation. The best measure is family planning to keep the overpopulation check. In order to do that, one can ensure proper spacing between the births of the children.

Further, limiting the number of children as per income and resources must also be important. Similarly, it is essential to increase resources. The government must make the horrors of overpopulation reach the public through the use of media.

Moreover, better education can help implement social change which can curb overpopulation. Next up, knowledge of sex education must be made mandatory in schools so students learn young about everything they need to know.

Most importantly, it is essential to empower women so they can break out of poverty. This way, they can learn about reproductive health and make better decisions. Another solution can be government incentives.

Many governments of countries already have various policies which relate to tax exemptions for curbing overpopulation. For instance, some waive a certain part of income tax for married couples with one or two children.

Get the huge list of more than 500 Essay Topics and Ideas

Conclusion of Overpopulation Essay

All in all, overpopulation is no less than a curse that poses a permanent threat to the development of any country. It is essential to stop the flood of population. In order to do that, one must indulge in proper family planning and creating balance in society for a better world.

FAQ of Overpopulation Essay

Question 1: What is the main cause of overpopulation?

Answer 1: It is believed that the main cause of overpopulation is poverty. When there is a lack of education resource which coupled with high death rates, it results in impoverished areas witnessing large booms in population.

Question 2: How is overpopulation affecting the world?

Answer 2: Overpopulation is affecting the world as it is outpacing the ability of the planet earth to support it. It also has environmental and economic outcomes which range from the impacts of over-farming on global warming.

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Home Essay Examples Sociology Overpopulation

Overpopulation: Causes And Consequences

• Category Sociology
• Subcategory Human Populations
• Topic Overpopulation

The concept of global challenges is very ambiguous as it encompasses multifarious types of challenges, consequences and solutions. However, Professor Kristen Gelsdof succinctly defines a global challenge as “any major trend, shock or development that has the potential for serious global impacts” (1). I would like to extend this definition with “and can only be solved with global compliance and collaboration”, as I believe that no global challenge can be solved by any one nation or institution alone. They require collaborative action among all members of the international community, including IGOs, NGOs and corporations (2).

A significant challenge facing us today is world population, which can be characterised as overpopulation and as a growing threat to human survival on Earth. From the beginning of human history, it took until 1804 to reach a world population of 1 billion people, but only approximately 200 years after that to reach 7 billion (see Figure 1). Now, humans are reproducing at an unprecedented rate, with the population expected to increase by 2 billion in the next 30 years and peak at 11 billion by 2100 (3). The Industrial Revolution was a pinnacle point of human history that brought advancements in science, technology and transport worldwide. These advancements have enabled more people to reach the reproductive age and have reduced the fatality rate. As a result of this, increasing worldwide population growth has become a major contributor to climate change, rising sea-levels, exhaustion of natural resources and rising living costs and unemployment (4). It is now more important than ever before to face overpopulation with global solutions, otherwise the consequences will be devastating.

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In her report The Population Explosion: Causes and Consequences, Carolyn Kinder defines overpopulation as “the condition of having more people than can live on earth in comfort, happiness and health and still leave the world a fit place for future generations” (6). With more than 220 000 consumers being added to the planet daily (7), the disparity between human consumption and renewed global resources is increasing at an extremely unsustainable and alarming rate.

Earth Overshoot Day is the date which marks the depletion of the global allowance of the Earth’s yearly quota of natural resources. These resources include clean water, clean air and carbon sequestration (8). In 2019, Earth Overshoot day was July 29th, the earliest date recorded. To put this into perspective, in 1987 the date was October 23rd and in 2005 it was August 26th (9). This current usage is equivalent to 1.7 Earths, and if this trend continues, with more people using more resources, three Earths will be needed by 2050 (see Figure 2) (10).

The first step in solving overpopulation is recognising it as a global challenge and acknowledging that it’s growing beyond its limits. When looking at Gelsdorf’s definition, it is quite evident that the concept of overpopulation cannot be denied as a global challenge. This trend has the ability to effect any area of the globe and has the ‘potential for serious global impacts’, such as resource depletion. Furthermore, because overpopulation is “trans-institutional in solution” (12) it can only be solved with ‘global compliance and collaboration’.

The 1994 International Conference of Parliamentarians on Population and Development recognised this fact. The conference identified that there is a “delicate balance between population and natural resources” (13) and it urges national governments to take responsibility to resolve their own population issues “in a way that respects their own national and cultural identity, values and tradition” (14).

A prominent example of a nation taking specific action to tackle population growth is China and it’s one child policy. Introduced in 1980, this unique and unprecedented domestic measure established strict government monitoring to ensure that Chinese couples were having one child only. Incentives were offered to those who complied with the policy, including paid vacation and priority housing. With China making up 19% of the global population alone, the policy has been effective in preventing approximately 400 million births (15), but despite this success, China has suffered from some negative side effects, including a skewed male population, an aging population and a shrinking workforce. The policy framework focused on numbers only and did not – or was not able to – take account of entrenched cultural biases that favoured survival of male children over female children. So, resolving the challenge clearly lies within shrouds of moral, religious, political and practical circumstances, as well as numbers.

Recent modifications to the policy now allow couples to have two children if either parent is a single child. A study published by The Lancet by Professor Yi Zeng and Professor Therese Hesketh highlighted that the two-child policy will “not result in a baby boom, but rather a moderate increase in fertility” (16), because of the low fertility culture in China due to the previous policy. Currently, China’s birth rates are at 1.9 children per mother (see Figure 3) and if this rate is sustained, it will lead to depopulation. However, the rate of decline will not mean a dramatic reduction in total population numbers, which still stands at 1.4 billion (17).

For the global community to benefit the most out of this solution, other nations should follow suit and implement their own birth policies within the bounds of their culture and awareness, especially nations with higher populations like India, the United States and Indonesia (18). It’s a non-disruptive way to slowly decrease the population as it doesn’t impact individuals who are already alive, but instead prevents births.

Another international solution is the United Nations Sustainable Development Goals (SDGs) which outline 17 goals for the international community to work towards that are “the blueprint to achieve a better and more sustainable future for all” (20). Because of state sovereignty, the SDGs are not legally binding. Instead, they are an innovative and effective way to exert pressure on nations and hold them accountable to accomplish the goals within their own borders (21). Additionally, compliance with the SGDs allows nations to create or maintain ties with other countries and establish a positive reputation within the global community. Although there is no specific SDG for overpopulation, the interconnective nature of the goals ensures that progress of some SDGs, especially ‘gender equality’ and ‘quality education’, is progress towards reducing overpopulation.

In his documentary Bill Nye Saves the World, scientist Bill Nye discusses the link between empowering women and overpopulation, stating, “by empowering women, we can lower the birth rate and keep population growth manageable” (22). Giving women access to a quality education and career is an impactful and ethical way to lower the birth rate. Not only is an education a vital way to gain knowledge about the many birth control options, but having a career usually means a woman can choose to have children later in life, which usually is linked to having fewer children. While this is a desirable aim, it is unfair for the female population to address this alone. The attitude and expectation of the male cohort must change if increased population levels are to be stabilised or reduced over time.

If the UN were to modify the SDGs to add a specific overpopulation goal, it will increase awareness about this issue and hopefully encourage nations put in place their own policies to sustain their precious resources and ensure the future of the world. Such an approach requires some sort of incentive which may include attaching achievement of population goals to financial assistance levels. World lending and aid organisations need to link their practices to a more sustainable level of population growth in spite of the moral and ethical issues that such an approach presents and the financial implications of doing so.

The actions we as a global community take now to combat overpopulation will determine the future of humankind and the environment. We have the power to decide whether we want to prosper as a race or succumb to irreversible environmental degradation and resource depletion. It is vital for all members of the international community to collaborate, cooperate and comply to ensure that the global solutions put in place are effective and sustainable.

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The Effects of Overpopulation

Global problems affect the life not only of certain individuals but the society in general. One of the global dilemmas that can consequently lead to the severe outcome is overpopulation. The major purpose of the paper is to discuss the problem of overpopulation, highlight the risks and environmental problems, as well as make an accent on the ways of regulation this issue.

As a matter of fact, overpopulation is a modern ecological problem. According to the recent researches, the number of people increases every year with tremendous speed. In 1900, the population reached the point of 1,5 billion of people whereas by 1960 the population has already doubled. Moreover, by 1999, the population doubled again (Pettorelli 543).

Every person consumes a lot of resources, and overpopulation is considered to be a threat. The only solution is birth control and improvement of the quality of life. The human overpopulation takes place in those countries where the population is bigger than food and water resources.

However, birth control encounters many obstacles. Among them are the following, namely negative reaction of the society, the enormous role of religion that encourages having many children, primitive communal forms of living, illiteracy and ignorance, poor development of medicine, and other. Thus, the countries of the third world are the most vulnerable in relation to the overpopulation.

Environmental problem, overpopulation, and underdevelopment are directly linked to a possible threat of lack of the resources in the nearest future. The majority of countries that experience a rapid increase in population have poorly developed agricultural segment.

The solution is to boost the productivity. However, the increase in usage of fertilizers, pesticides, and chemicals leads to a deterioration of the ecological situation and increasing concentrations of substances that are harmful to human food (Coallier 61). The interference of a human being into ecology leads to the lack of water that is good for drinking. In case people do not address the issue, a number of questions will arise, namely:

• Landfills and pollution of the surface of the planet;
• The destruction of the forests;
• Shortage of mineral resources;
• Hazardous impact on the marine ecosystem;
• Air and water pollution with CO2 emissions (Bourne 375).

The only solution that will mitigate the impact of the over population is the birth control programs. The demographic situation in the Eastern World has already reached the point when the government found it essential to interfere. In the number of states, the measures directed to the reduction of the population were vital for implementation. One of the examples is China, which established the principle one child for one family.

The objective of the government was to control overpopulation. The average number of children who were born in China from one woman decreased from about 5 to 1 (Coallier 83). Thus, the restriction policy was successful, and the government reached the goal. The government encourages families to have one child; however, with the birth of the second baby, the family will be liable to pay a fee.

Throughout the history, the number of people was always controlled by wars and epidemics. Every time the number of people decreased, the society experienced rapid development. Nevertheless, nowadays, the society has already gained a significant experience that can be used in the treatment of different diseases. Thus, there are almost no factors that would significantly decrease the number of people.

In conclusion, it should be stressed that the situation regarding the overpopulation demands the solution. The issue should receive the priority not only on the governmental but global levels as well. Overpopulation can lead to severe consequences and become the reason for the destruction of the planet and humanity.

Works Cited

Bourne, Debra. “Overpopulation.” Companion Animal 20.7 (2015): 373-381. Web. 24 Apr. 2016.

Coallier, Julien. Overpopulation Revisited a Global Perspective . Hillsborough: Lulu, 2015. Print.

Pettorelli, Nathalie. “Climate Change as a Main Driver of Ecological Research.” Journal of Applied Ecology 49.3 (2012): 542-545. Web. 24 Apr. 2016.

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Essay on Overpopulation in 500 Words

• Updated on  
• Dec 28, 2023

Essay on Overpopulation: Today, there are a total of 8.1 billion people in the world. This is a result of overpopulation and studies suggest that in the next 25 years, this number will reach 10 billion. This is overpopulation or overabundance, where our environment cannot offer resources to such large amounts of people. Overpopulation is not limited to humans only. It can be of any species living in a particular habitat. 

India, China, and the USA are the three most populated countries in the world, which account for a total of 40% of the global population. Population plays a major role in a country’s development. However, if there is overpopulation, it will hamper developmental activities and there will be fewer resources available. This will eventually lead to higher food prices, making survival difficult for everyone.

Also Read: World Population Day 2023

Also Read: Essay on India of My Dreams

Causes of Overpopulation

There are various causes of overpopulation, such as lack of education, high birth rates, primitive medical facilities, illiteracy, lack of employment opportunities, etc. Most of these factors are prevalent in developing and underdeveloped countries. 

High birth rates contribute significantly to overpopulation. Factors such as lack of access to family planning, cultural norms, and a high infant mortality rate can encourage families to have more children.

Lack of education and poverty lead to higher population growth. People belonging to communities where education is limited, are not aware of or have access to family planning methods.

In many places, cultural and religious beliefs influence reproductive choices. Some families have several children, which is part of their social norm or is encouraged by religious teachings.

Another major cause of overpopulation is migration. People move to areas with better economic prospects, leading to population density issues in those regions.

Also Read: Essay on Education

Also Read: Essay on New Education in 500 Words

Consequences of Overpopulation

In one way or another, all the problems the world is facing today are related to overpopulation. Say it war, overuse of resources, slow developmental activities, carbon emission, global warming, etc. 

Natural resources are depleting at a faster rate than ever. As the population increases, the demand for food and energy resources also increases. Overpopulation contributes to climate change, loss of biodiversity, and other environmental issues. 

As humans, we need houses, which are established by cutting down forests and other natural resources. This results in a loss of biodiversity. Rapid urbanization causes problems such as inadequate housing, insufficient infrastructure, traffic congestion, and increased pollution in urban areas. 

A rapidly growing population can outstrip job opportunities, resulting in high levels of unemployment. This can lead to social unrest and economic instability.

The overpopulation myth ~ Make babies, not war 🙏 pic.twitter.com/3JaLbDbHd2 — Oddvin (@enterfx) December 16, 2023

How to Deal With Overpopulation

Educating people about the causes and effects of overpopulation is one of the best ways to deal with overpopulation. Studies show that people who have access to proper medical and healthcare facilities have better family planning measures. 

Promoting and educating women and girls about reproduction is very important. Educated women tend to have fewer children and this will make them socially and economically more empowered. Encouraging women to participate in the workforce and decision-making processes can be another way to deal with overpopulation. 

Offering job opportunities and promoting green sustainable development will allow people to understand the effects of overpopulation on the environment. 

The world is our home and we are its protector. Overpopulation is putting a lot of strain on the natural environment, and it needs to be addressed in a civilised way. We need to make sure there is enough for everyone and that we are fulfilling our duty to Mother Nature.

Ans: The major causes of overpopulation are high birth rate, lack of education and illiteracy, poverty, cultural and religious beliefs, etc.

Ans: Some of the least populated countries are Iceland, Suriname, Mongolia, San Marino, Liechtenstein, and Palau.

Ans: Overpopulation is a phenomenon where a particular species exceeds the carrying capacity of the environment. The global population has increased by 1.2 billion in the last 20 years. This was the biggest population boom, putting a heavy strain on the natural environment. Overpopulation is majorly caused in developing countries, because of factors like lack of education and illiteracy, higher birth rates, poverty, etc. Proper government actions are required to address overpopulation, such as educational and family planning programs, women empowerment, job opportunities, etc.

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Essay on Effects of Overpopulation

Students are often asked to write an essay on Effects of Overpopulation in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

Let’s take a look…

100 Words Essay on Effects of Overpopulation

Introduction.

Overpopulation refers to a situation where the number of people exceeds the resources available to meet their needs. It’s a critical issue that has several effects on our planet.

Environmental Impact

Overpopulation leads to excessive consumption of resources, causing environmental degradation. It results in deforestation, loss of biodiversity, and climate change.

Resource Scarcity

With more people to feed, house, and provide for, resources become scarce. This can lead to shortages of food, water, and energy.

Social Issues

Overpopulation can also lead to social problems like unemployment, poverty, and inadequate healthcare. It puts pressure on social services and infrastructure.

Overpopulation poses serious threats to our environment and society. It’s important to find sustainable solutions to control population growth.

250 Words Essay on Effects of Overpopulation

Overpopulation, a concerning global issue, refers to a situation where the number of people exceeds the carrying capacity of their regional environment. This population explosion has numerous effects, some of which are severely detrimental to our planet and society.

Overpopulation leads to excessive consumption of resources, contributing to their rapid depletion. It accelerates deforestation, as more land is required for housing and agriculture. This loss of forests disrupts ecosystems, leading to biodiversity loss. Furthermore, the increased demand for fossil fuels results in higher CO2 emissions, accelerating climate change.

Social Consequences

An overcrowded society often faces challenges in providing basic necessities. Overpopulation strains public services, such as education, healthcare, and infrastructure. It can also exacerbate unemployment rates, leading to economic instability and increased poverty levels.

Health Implications

Overpopulation can impact public health. High population densities can facilitate the spread of diseases, making pandemics more likely and more difficult to control. Additionally, increased pollution due to overpopulation can lead to a range of health problems, from respiratory issues to cancer.

Overpopulation is a pressing issue with far-reaching implications for our planet and society. It is crucial to address this problem through sustainable development, education, and population control measures. By doing so, we can hope to create a balanced relationship between humanity and our shared environment.

500 Words Essay on Effects of Overpopulation

Overpopulation is a global issue that has profound implications on the sustainability of our planet. It refers to a situation where the number of people in a particular region exceeds the carrying capacity of that region. The rapid increase in global population, particularly in the last few centuries, has led to a multitude of problems, ranging from environmental degradation to socioeconomic instability.

Environmental Impacts

One of the primary effects of overpopulation is the strain it places on our environment. The increased demand for natural resources such as water, fossil fuels, and agricultural land has led to their over-exploitation. This results in deforestation, soil erosion, and a loss of biodiversity. Overpopulation also contributes to increased carbon emissions, leading to global warming and climate change.

Socioeconomic Consequences

Overpopulation also has significant socioeconomic implications. With more people to feed, educate, and provide healthcare for, governments often struggle to meet these demands, leading to a decline in living standards. Overcrowded cities often face problems such as inadequate housing, poor sanitation, and increased crime rates. Additionally, overpopulation can exacerbate unemployment rates, as job creation struggles to keep pace with population growth.

Health Challenges

The health sector is not immune to the effects of overpopulation. Overcrowded living conditions can facilitate the spread of infectious diseases. Limited access to clean water and sanitation can also lead to a rise in waterborne diseases. Furthermore, the strain on healthcare systems can result in inadequate healthcare provision, leading to increased mortality rates.

Education and Human Development

Overpopulation can also hinder human development. With a higher number of children to educate, it becomes challenging to maintain the quality of education. This can lead to increased illiteracy rates and a lack of skilled labor force, which can further exacerbate economic challenges.

In conclusion, overpopulation is a multifaceted problem with far-reaching effects. It not only threatens our environment but also poses significant socioeconomic and health challenges. Therefore, it is crucial that we address this issue through comprehensive policies that focus on sustainable development and population control. This could include initiatives to improve education, particularly on family planning, and the promotion of sustainable practices.

The issue of overpopulation is a pressing one, and it is our collective responsibility to ensure that our planet can sustain future generations. As we continue to grapple with this issue, it is essential that we foster a global dialogue on overpopulation, encouraging innovative solutions and cooperation among nations.

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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 ).

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.

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.

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.

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.

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.

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.

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.

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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Home — Essay Samples — Sociology — Population Growth — Overpopulation, Its Causes And Effects

Overpopulation, Its Causes and Effects

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• Overpopulation Essay

IELTS Overpopulation Essay

This model essay is about  overpopulation in cities . You specifically have to talk about the  problems  of overpopulation, and suggest some  solutions  to this problem.

Note that this question specifically asks you what governments and individuals can do.

Here is the question:

Overpopulation of urban areas has led to numerous problems.

Identify one or two serious ones and suggest ways that governments and individuals can tackle these problems.

Organising a Problems & Solutions Essay

Note that this overpopulation essay question specifically asks you what governments and individuals can do.

You MUST, therefore, write about what both of these can do in order to fully answer the question.

Note as well that you must talk about  serious  problems.

The easiest way to organize a problems and solutions essay is as follows:

Body 1: Problems

Body 2: Solutions

In this essay, a separate paragraph has been written about government and individual solutions, so it is organized as follows:

Body 2: Solutions - Government

Body 3: Solutions - Individuals

Model Essay

You should spend about 40 minutes on this task.

Write about the following topic:

Give reasons for your answer and include any relevant examples from your own experience or knowledge.

Write at least 250 words.

IELTS Overpopulation Essay - Sample Answer

Many countries of the world are currently experiencing problems caused by rapidly growing populations in urban areas, and both governments and individuals have a duty to find ways to overcome these problems.

Overpopulation can lead to overcrowding and poor quality housing in many large cities. Poorly heated or damp housing could cause significant health problems, resulting in illness, such as bronchitis or pneumonia. Another serious consequence of overcrowding is a rising crime rate as poor living conditions may lead young people in particular to take desperate measures and turn to crime or drugs.

In terms of solutions, I believe the government should be largely responsible. Firstly, it is vital that the state provides essential housing and healthcare for all its citizens. Secondly, setting up community projects to help foster more community spirit and help keep young people off the street is a good idea. For example, youth clubs or evening classes for teenagers would keep them occupied. Finally, more effective policing of inner city areas would also be beneficial.

Naturally, individuals should also try to address these problems. One way is to put pressure on the government to ensure they tackle the problems by, for instance, forming action groups to lobby the government and request intervention and adequate funding. They could also form Neighbourhood Watch areas to try and help reduce the high levels of crime.

Therefore, it is clear that the problems caused by overpopulation in urban areas are very serious. Yet if governments and individuals share a collective responsibility, then it may well become possible to offer some solutions.

(260 words)

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IELTS Problem Solution Essay Example: Why is immigration problematic?

This problem solution essay example is about the increasing number of professionals who are leaving their own poorer countries to work in developed countries

Competing for Jobs Essay

Competing for Jobs Essay: This is a model essay about the problems arising when older people have to compete with younger people for jobs. you need to write about the problems that arise if older people have to compete for jobs with younger people.

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• How Do Overpopulation and Overconsumption Damage the Environment?…

How Do Overpopulation and Overconsumption Damage the Environment? What You Need to Know

Overpopulation of the earth is a major problem on its own , but it also leads directly to other serious environmental impacts. One of those issues is overconsumption, especially of single-use products that damage the environment, slow the ability of the earth to renew its resources, and contribute to climate change.

What Is Overconsumption and Why Is It so Bad?

Overconsumption is, simply, individuals consuming more resources than they need and that the earth can provide. This extreme behavior also prevents the natural renewal of resources due to the speed of consumption. It is particularly a problem in the global North, where the populace tends to have more money available for leisure and convenience.

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This is not to say that nonbiodegradable consumables aren’t a problem in the global South, but the major offenders tend to be in places like the United States.  Especially dangerous to the environment are single-use, disposable plastic items like bags, cups, etc. These items do not break down in the soil, and they can prevent the earth from naturally replenishing its valuable resources.

The United States alone uses over 1 trillion disposable items related to food each year. These items can end up in bodies of water and cause damage to sea creatures as well as pollute the water itself. Large cities in the global North are the main source of the problem. Many of these cities have huge populations, and the concentration of people and wealth in a relatively small area is disastrous to the environment, as it leads to overconsumption quickly. According to one report , “The United States contributes more to this deluge than any other nation, generating about 287 pounds of plastics per person. Overall, the United States produced 42 million metric tons of plastic waste — almost twice as much as China, and more than the entire European Union combined.”

China, currently the world’s most populous nation, is one of the worst polluters in the world, behind the United States. As China’s economy has grown, so has the trend toward overconsumption. China has not done much to curtail the profligate habits of its citizens, and the country has some of the highest carbon emissions of any nation in the world.

Other nations are guilty of indulgence, pollution and overconsumption too. The tiny Middle Eastern nation of Qatar ranks near the top in the world in terms of carbon emissions per capita. Its citizens consume so much that, if their consumption rate was replicated all over the world, five earths would be required to provide enough resources to cover the consumption.

We don’t have five earths, we only have one, with 8 Billion people who will call the earth home by the end of the year.

Overconsumption and Overpopulation Exacerbate One Another’s Impact

Overconsumption is partly caused by the increasing population in many areas around the world. Larger populations require more food, water , and energy, and consequently tax the earth’s ability to replace used resources. Overpopulation depletes wildlife to dangerously low levels. Overfishing has ruined many formerly fertile fishing grounds. Increased use of agriculture displaced many wild animal species, sometimes resulting in their extinction. According to National Geographic , “by 1989, when about 90 million tonnes (metric tons) of fish were taken from the ocean, the industry had hit its high point, and yields have declined or stagnated ever since. Fisheries for the most sought-after species, like orange roughly, Chilean sea bass, and bluefin tuna, have collapsed for lack of fish. In 2003, a scientific report estimated that industrial fishing had reduced the number of large ocean fish to just 10 percent of their pre-industrial population.” The destruction of wetlands is particularly impactful, as their biodiversity is very high.

Every human deserves clean water, clear air, and space to live—a fair amount of Earth’s resources. These are basic human rights. There are no “right” or “wrong” people to inhabit our planet, but we must all work together to change our current population trajectory, which has us on track to hit nearly 11 billion people by 2100, a capacity our world simply cannot handle while providing adequately for all inhabitants.

On the other hand, humanity’s growing population has introduced invasive species into areas where they can do serious damage to the environment. Species introduced into areas through human migration and travel often have no natural predators, allowing them to expand their numbers quickly. This may cause the depletion in population of other species in the area. Invasive insects can damage native plants, while invasive plants can choke out other indigenous plant species. In places like New York, it is estimated invasive species, like the emerald ash borer, will kill off 1.4 million street trees by 2050. In fact according to the British Ecological Society , 90% of the 1.4 million trees deaths forecasted in the study are predicted to be caused by the emerald ash borer ( Agrilus planipennis ), which is expected to kill virtually all ash trees in more than 6000 urban areas. The ash borer can be tied directly to overconsumption and overabundant free-market policies, as the destroyer of trees arrived accidently on trade goods and cargo shipped from Asia to the United States.

Larger populations demand more resources of all kinds, and this includes the use of fossil fuels. Because fossil fuel technology is older and well-established, it tends to be cheaper than alternative sources. Some nations cannot afford the costs associated with cleaner, renewal energy sources.

Increased use of fossil fuels results in more carbon emissions and more environmental damage. This, combined with the inevitable process of deforestation that occurs in overpopulated areas, multiplies the effect of fossil fuel use, does additional harm to the environment, and prevents natural renewal of resources.

Overconsumption cannot be separated from overpopulation. If the world’s population became more sustainable—or our practices more environmentally-friendly—there could  be enough resources available for all humans to thrive.

But with an already-burgeoning population that will continue to grow for decades, the need to conserve resources is so great that even a small degree of overconsumption becomes a major problem. Reducing consumption across the world can help in the short term, but the long-term problem remains the rate of population growth. Let’s work on addressing these issues together, because no single problem is solvable if we go at them alone.

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• Population Growth Essay

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. There has been news about the scarcity of food grains and the paucity of jobs mounting across the world. The number of human beings is multiplying at a steady rate. The world population has already crossed the six billion mark and it is expected to double in the next three or four decades. 

If the population continues to grow at this rate then the economy of the overpopulated countries will be unable to cope up with the growth of the population. Every attempt to bring peace, comfort and welfare to everybody’s door will be thwarted and misery will become prominent if the population is not kept within proper limits. Except for a few countries, all countries are facing a population boom. Currently, the largest populated country in the world is China and India is the second-largest populated country. India represents 17% of the world’s population. Other countries like Bangladesh, Japan, Indonesia and some countries of Europe are threatened to be burst into the seams by population explosion.

Causes of Population Growth

The major cause of population growth is the decrease in death rate and rise in the life span of the average individual. Earlier, there was a balance between the birth and death rate due to limited medical facilities, people dying in wars, and other calamities. The rapid spread of education has made people health conscious. People have become aware of the basic causes of diseases and simple remedies for them.

Illiteracy is another cause of an increase in population. Low literacy rate leads to traditional, superstitious, and ignorant people. Educated people are well aware of birth control methods. 

Family planning, welfare programs, and policies have not fetched the desired result. The increase in population is putting tremendous pressure on the limited infrastructure and negating the progress of any country.

The superstitious people mainly from rural places think that having a male child would give them prosperity and so there is considerable pressure on the parents to produce children till a male child is born. This leads to population growth in underdeveloped countries like India, Bangladesh. 

Poverty is another main reason for this. Poor people believe that the more people in the family, the more will be the number of persons to earn bread. Hence it contributes to the increase in population. 

Continuous illegal migration of people from neighbouring countries leads to a rise in the population density in the countries. 

Religion sentiment is another cause of the population explosion. Some orthodox communities believe that any mandate or statutory method of prohibition is sacrilegious. 

Impact Due to Population 

The growth of the population has a major impact on the living standards of people. Overpopulation across the world may create more demand for freshwater supply and this has become a major issue because Earth has only 3% of freshwater. 

The natural resources of Earth are getting depleted because of the exponential growth of the population. These resources cannot be replenished so easily. If there is no check on the growth of population then there will be a day in the next few years when these natural resources will run out completely. 

There is a huge impact on the climatic conditions because of the growth of the population. Human activities are responsible for changing global temperature. 

Impact of Overpopulation on Earth’s Environment

The Earth's current population is almost 7.6 billion people, and it is expanding. It is expected to surpass 8 billion people by 2025, 9 billion by 2040, and 11 billion by 2100. The population is quickly increasing, far surpassing our planet's ability to maintain it, given existing habits.

Overpopulation is linked to a variety of detrimental environmental and economic consequences, including over-farming, deforestation, and water pollution, as well as eutrophication and global warming. Although many incredible things are being done to increase human sustainability on our planet, the problem of too many people has made long-term solutions more difficult to come across.

Overpopulation is mostly due to trends that began with a rise in birth rates in the mid-twentieth century. Migration can also result in overcrowding in certain areas. Surprisingly, an area's overcrowding may arise without a net increase in population. It can happen when a population with an export-oriented economy outgrows its carrying capacity and migratory patterns remain stable. "Demographic entrapment" has been coined to describe this situation.

Some Major Effects of the High Population are as Follows

The rapid growth of the population has caused major effects on our planet. 

The rapidly growing population in the world has led to the problem of food scarcity and heavy pressure on land resources. 

Generating employment opportunities in vastly populated countries is very difficult. 

The development of infrastructural facilities is not able to cope up with the pace of a growing population. So facilities like transportation, communication, housing, education, and healthcare are becoming inadequate to provide provision to the people. 

The increasing population leads to unequal distribution of income and inequalities among the people widened.

There will be a large proportion of unproductive consumers due to overpopulation. 

Economic development is bound to be slower in developing countries in which the population is growing at a very fast rate. This also leads to low capital formation. Overpopulation makes it difficult to implement policies. 

When there is rapid growth in a country then the government of that country is required to provide the minimum facilities for the people for their comfortable living. Hence, it has to increase housing, education, public health, communication and other facilities that will increase the cost of the social overheads.

Rapid population growth is also an indication of the wastage of natural resources. 

Preventive Measures

To tackle this problem, the government of developing countries needs to take corrective measures. The entire development of the country depends on how effectively the population explosion is stemmed. 

The government and various NGOs should raise awareness about family planning and welfare. Awareness about the use of contraceptive pills and family planning methods should be generated. 

The health care centres in developing and under-developed countries should help the poor people with the free distribution of contraceptives and encourage the control of the number of children. 

The governments of developing countries should come forward to empower women and improve the status of women and girls. People in rural places should be educated and modern amenities should be provided for recreation. 

Education plays a major role in controlling the population. People from developing countries should be educated so that they understand the implications of overpopulation.

Short Summarised Points On Population Growth

Based on the number of deaths and births, population growth might be positive or negative. 

If a country's birth rate outnumbers its death rate, the population grows, whereas more ends result in a drop.

There are 7.7 billion people on the earth, and India, with 1.3 billion people, is the second-most populous country after China.

Mumbai, the Bollywood capital, is India's most populous city, with a population of 12 billion people. Delhi, India's most populous city, comes in second with 11 billion inhabitants.

The advancement of knowledge in science, medicine, and technology has resulted in lower mortality and higher fertility, resulting in population rise.

Factors contributing to India's population expansion, such as mortality and fertility rates, child marriage, a lack of family planning, polygamy marriage, and so on, have wreaked havoc on the ecosystem.

Industrialization, deforestation, urbanisation, and unemployment have all been exacerbated by population expansion. These causes degrade our environment and contribute to societal health issues.

Pollution, global warming, climate change, natural catastrophes, and, most importantly, unemployment are all caused by the population.

To keep population increase under control, individuals must have access to education and be aware of the dangers of overpopulation.

The government must raise public awareness about illiteracy and educate individuals about the need for birth control and family planning.

Overpopulation may lead to many issues like depletion of natural resources, environmental pollution and degradation and loss of surroundings.  All countries must take immediate steps to control and manage human population growth.

FAQs on Population Growth Essay

1. What Do You Mean By Population Growth and How is it a Threat to the World?

Population growth refers to the rapid increase in the number of people in an area. It is a threat to the world because the world’s resources are limited and it cannot support a population beyond a certain limit.

2. What are the factors of Population Exponential Growth?

The factors for the exponential growth of the population are illegal migration from other countries, illiteracy, lack of awareness of contraceptive methods, poverty, lack of basic amenities, religious sentiments and superstitions. 

3. What steps should India take to reign in population growth?

Family planning and welfare must be made more widely known by the Indian government. Women and girls should be given more power. Free contraceptives should be distributed and people should be educated at health care centres. In schools and colleges, sex education should be required. Some more points to ponder are given below:

1. Social Actions

The minimum age for marriage is 18 years old.

Increasing women's status

Adoption of Social Security and the Spread of Education

2. Economic Interventions

Increased job opportunities

Providing financial incentives

3. Additional Measures

Medical Services

Legislative Initiatives

Recreational Resources

Increasing public awareness

4. What Impact Does Overpopulation Have on Our Planet?

Overpopulation is linked to a variety of detrimental environmental and economic consequences, including over-farming, deforestation, and water pollution, as well as eutrophication and global warming. Although many incredible things are being done to increase human sustainability on our planet, the problem of too many people has made long-term solutions more difficult to come across. Because of the exponential rise of the human population, the Earth's natural resources are depleting. Overpopulation has a significant impact on climatic conditions. The fluctuating global temperature is due to human activity.

5. What are the impacts on the population?

The influence of population expansion on people's living conditions is significant. Overpopulation around the world may increase demand for freshwater, which has become a big issue given that the Earth only possesses 3% freshwater. Because of the exponential rise of the human population, the Earth's natural resources are depleting. These materials are not easily replenished. If population growth is not slowed, these natural resources will run out altogether in the next several years. The population explosion has had a significant impact on climatic conditions. The fluctuating global temperature is due to global warming and needs to be regulated immediately as glaciers have already started melting and global temperature is rising at an alarming rate.

Essay on Overpopulation

To guarantee a future for our planet, it’s essential that we strive for sustainability in all of our practices. Whether it is in business, industry, or even the everyday decisions and habits in our lives. We must be vocal and proactive in preserving the earth’s resources and advocating for sustainable practices. One of the major concerns affecting the sustainability of the planet is population. The increase in population is leading to several problems. Therefore, today we will focus on the effects of overpopulation on our planet in detail.

Short and Long Overpopulation Essay in English

Here, we are presenting long and short essays on Overpopulation in English for students under word limits of 100 – 150 Words, 200 – 250 words, and 500 – 600 words. This topic is useful for students of classes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 in English. These provided essays on Overpopulation will help you to write effective essays, paragraphs, and speeches on this topic.

Overpopulation Essay 10 Lines (100 – 150 Words)

1) Overpopulation is a very disastrous problem in the world nowadays.

2) It increases pressure on resources such as food, water, shelter, and energy.

3) Overpopulation also contributes to global warming.

4) Overpopulation reduces the quality of life and affects the quality of the environment.

5) Overpopulation affects the education system and causes overcrowding in schools and universities.

6) It limits spaces for individuals to enjoy outdoor activities, such as parks and beaches.

7) Overpopulation leads to increased competition for jobs and wages.

8) It makes it difficult for people to receive healthcare and other essential services.

9) Government runs several policies to control the population.

10) Overpopulation is a major concern that should be controlled as soon as possible.

Short Essay on Overpopulation (250 – 300 Words)

Introduction

Overpopulation is a global issue that affects our lives and will continue to do so until some action is taken. To put it in simple terms, it is a situation where the number of people living in an area is significantly higher than the amount of resources available to them. As population growth continues to spiral and more people are born than die in a given area, overpopulation inevitably increases.

Consequences of Overpopulation

The consequences of overpopulation are far-reaching and deadly. In densely populated cities, finite resources become increasingly scarce as industrialization and urbanization increase. This causes competition over resources and pressure on water, energy, and food supplies. Stressful living conditions only add to the problem as people battle overcrowding in housing as well as in workplaces and public spaces. This struggle to survive can lead to mental and physical health problems, aggression, and crime.

Impact of Overpopulation on the Environment

The environment also suffers greatly under overpopulation. With more people consuming resources and creating waste, there is an increased demand for space, energy, and materials. This often leads to habitat destruction, air and water pollution, and the depletion of natural resources. It is also believed that the human population is partly responsible for climate change as a result of the increase in emissions from transport, agriculture, and industry.

Overpopulation is an urgent, complex, and universal issue that needs to be tackled now to ensure our planet’s future. We must prioritize our wellbeing of us while carefully managing our resources so that no one is disproportionately affected by the consequences of human population growth.

Long Essay on Overpopulation (500 Words)

The global population has increased exponentially over the past century. Overpopulation is a major concern for the world, as it has a wide range of impacts on the environment, economy, health, and more. It is therefore important to understand the various implications of overpopulation and take steps to mitigate them.

Impact of Overpopulation on Global Scale

On a global scale, overpopulation can create large-scale environmental issues. As the number of people on the planet increases, so does the number of resources required to sustain them. This can lead to deforestation as more trees are cut down to provide materials for housing, and increased pollution due to additional waste being created. In addition, it creates the issue of food insecurity as more people are competing for access to limited resources.

Impact of Overpopulation on National Level

On a national level, overpopulation can lead to economic problems. As the population increases, it becomes more difficult to produce enough jobs and create enough income opportunities to support everyone. This in turn can lead to higher unemployment, higher taxes, and poorer living standards. In addition, due to population pressure, public services such as healthcare, transportation, and education can suffer from underinvestment, leading to poorer quality and inaccessibility for those who need it the most.

Impact of Overpopulation on Personal Level

On a personal level, being part of an overpopulated society can have many negative impacts. Crowding can lead to greater stress due to reduced personal space, more noise and air pollution, and decreased access to recreational areas. In addition, it can lead to greater competition for resources such as food and housing, resulting in rising prices and poverty rates.

Solutions for Overpopulation

While overpopulation has serious implications for our planet, there are steps we can take to mitigate this issue. Governments can implement and promote family planning programs to help families have better access to modern contraception and reproductive health care. In addition, comprehensive sex education can be used to promote responsible and informed decision-making on the part of individuals. On an environmental level, we can take steps to reduce our consumption of resources, adopt cleaner energy sources, and implement programs that promote environmental protection.

Overpopulation in India

India is one of the most populous countries in the world, with a population of more than 140 crore people. The country is struggling to meet the needs of its rapidly growing population. Overpopulation is an issue that India needs to address urgently. This can be done through education and better access to family planning services. Awareness campaigns need to be conducted to educate people about the consequences of overpopulation. Furthermore, the government needs to provide incentives for family planning and reproductive health care needs to be made accessible to everyone.

Overpopulation is a global issue with a wide range of societal and environmental implications. It is therefore important to understand the various impacts of overpopulation and to take steps to reduce, mitigate, and address them. With the proper solutions in place, it is possible to ensure that our planet can sustain its population in a way that is healthy and beneficial to all.

I hope the above-provided essay on overpopulation will be helpful for everyone to know the impact of the increasing population on our planet.

FAQs: Frequently Asked Questions on Overpopulation

Ans.  The primary causes of overpopulation in India are declining death rates, increased life expectancy, and deep-seated cultural and religious values that favor high birth rates. Additionally, poverty and a lack of education and access to family planning methods also contribute to overpopulation.

Ans.  The long-term effects of overpopulation in India are a decrease in the quality of life due to increased shortages of healthcare, food, clean water, and jobs and an increased risk of environmental damage and resource depletion.

Ans.  In 2023, China is considered the most populous country in the world.

Ans.  Vatican City is the least populated country in the world in 2023.

Ans.  In 2023, the population of India counts to 1,380,004,385.

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Overpopulation in World Essay in English for Children and Students

Table of Contents

Overpopulation refers to a situation where the number of humans in a particular place becomes more than the carrying capacity of that particular place. In a broader perspective the term overpopulation is also used for planet earth, because of the incessant rise in human population.

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There are various factors responsible for overpopulation like – low mortality rate; better public amenities; availability of food and habitat etc. A few social factors like illiteracy, poverty and no family planning are also responsible for overpopulation in developing or underdeveloped nations.

Long and Short Essay on Overpopulation in World in English

Below we have provided long and short essay on overpopulation in world. These overpopulation in world essay have been written in simple language covering all the vital topics under the heading overpopulation.

After going through the following essays you will know the causes of overpopulation in world; causes of overpopulation in India and other developing countries; what are the social effects of overpopulation; effects of overpopulation on health; what are the solutions of overpopulation etc.

Short Essay on Overpopulation in World (200 words) – Essay 1

Overpopulation is the overcrowding of earth due to unregulated population growth of humans. There are many economical and social factors leading to overpopulation. It could result from low mortality rate, high birth rate, illiteracy, lack of family planning, large scale migration etc. Also, depletion of natural resources at one place results in overpopulation at some other place, where the resources are abundant.

An improvement in the past century in basic healthcare facilities and amenities has led to a decline in mortality rate, thus causing the population to grow consistently and is set to continue growing in to the next century.

Overpopulation, despite being a significant global issue, doesn’t get its due consideration. Still not much is being done by the world, to regulate population or to counter its effects. Overpopulation can serious hamper the growth of a nation, causing issues like – unemployment, scarcity of resources, habitat destruction and law and order problems among others.

Necessary steps must be taken to keep the world population under control, so that no place on earth gets overcrowded with humans and become scarce in vital resources, making survival difficult. Along with the mentioned effects, overpopulation also indirectly affects the environment up to large extent.

Essay on Causes of Overpopulation in World (300 words) – Essay 2

Introduction

Overpopulation is the growing cause of concern throughout the world. It refers to an increase in population over a specific area, so much so, that the particular area becomes overcrowded, beyond its natural capacity. There are many reasons for overpopulation will we will discuss further in the essay.

Causes of Overpopulation in World

There could be various factors causing overpopulation in the world. Large scale immigration of people from one place to another because of political, communal or other issues may cause overpopulation at a particular place. People migrate to neighboring country to escape political upheaval or military conflicts on their own soil.

There is also a trend of migration from underdeveloped or developing countries to the developed nations. Mostly, labour class undertakes such migration in search of better financial opportunities. This migration however causes the population of the host nation to swell up.

Another significant factor that has been contributing to the population growth in the world is high life expectancy due to better medical facilities and development in medical science. People, today are dying less due to diseases, those had been claimed millions of lives in the past century.

Causes of Overpopulation in India and other Developing Countries

The main causes for overpopulation in India and other similar developing countries differ slightly from that of the world. Overpopulation in India is caused by factors like poverty, ignorance, lack of family planning, child labour, and reduced mortality rate, interstate immigration etc.

Poverty in India is considered to be one of the prime causes of overpopulation. Poverty leads to illiteracy and lack of awareness on issues like – contraceptive use and family planning; this, leading to a uncontrolled population growth in deprived areas.

The cause of overpopulation in the world is many and they differ from place to place. At one place migration might causing it, at another place it might have been caused due to poverty. Whatever the cause may be, we must take necessary steps to reduce overpopulation.

Essay on Effects of Overpopulation in World (400 words) – Essay 3

There are many effects of overpopulation in the world. Overpopulation in a place causes scarcity of available resources leading to deprivation and poverty. Moreover, it also causes unemployment, as the number of persons in need of a particular job, large outgrows the total number of actual vacancies. Two of the most common effects of overpopulation- social and health are discussed below.

Effects of Overpopulation in World

• Social Effects of Overpopulation

There are a variety of social effects of overpopulation, ranging from, poverty, unemployment, poor hygienic conditions and a scarcity of resources for a community. When the population of a particular area rises beyond the destined capacity of that place, then a number of changes in the society are witnessed.

For example, if a fresh water resource is used by more people than it can sustain; then such situation often results in conflicts. People tend to fight with each other over the use of resources.

Overpopulation also leads to scarcity of food and unemployment, causing large scale poverty, hunger and poor hygiene.

• Effects of Overpopulation on Health

Overpopulation also has an adverse effect on health of an individual, due to scarcity of food and other resources. The food and other resources, those had been available in abundance, become scarce, when the population of a place grows beyond a specific limit. Moreover, overpopulation is directly related to unemployment and latter could be directly associated to malnutrition and depleting health conditions.

Many people living in a crowded area also results in habitat destruction, reducing the quality of air and other vital parameters, resulting in poor health condition. As more people start living in an area, it becomes imperative to cut down trees and clear vegetation to make houses for them. Thus, begins the vicious cycle of materialistic growth compromising the health and fitness of humans.

People residing in populated areas are often seen living in poor health and hygienic conditions with no access to basic health amenities, clean air and clean water.

Overpopulation in area causes evident social and health effects on the individuals and the society as a whole. From poor health and hygiene conditions to natural resource depletion, unemployment and increase in criminal activities – overpopulation has a hand in all these adversities. It therefore becomes important that we take necessary remedial measures before the populations goes beyond the specified limit.

Essay on Solutions of Overpopulation in World (500 words) – Essay 4

The problem of overpopulation is grave, but as every problem has a solution, so overpopulation too has solutions; though, it may take some time before the results are evident, but the effort would be worth it. Below, the solutions for overpopulation in the world, India and other developing countries along with the government’s efforts in reducing overpopulation are discussed below.

Solutions of Overpopulation in World

Solutions to eliminate overpopulation in the world are discussed below. For the convenience of understanding, in this heading we will discuss the matter of overpopulation only in developed countries.

The main reason behind the concentration of population over a particular area in developed countries is the availability of resources and better growth opportunities. People tend to concentrate over the place where irrigation, water, electricity and other amenities are available in abundance. Necessary efforts must be made by the respective government to make the basic public amenities to the people in their native place of residence.

Any political or military conflict must be resolved quickly by the intervention of world community to prevent cross border migration and population complications at other places.

Solution of Overpopulation in India and other Developing Countries

The main causes of overpopulation in India and other countries are poverty, illiteracy and lack of basic knowledge about family planning. Majority of population in India and other developing nations, still reside in villages, where they lack basic education and other facilities than the cities.

People residing in villages still shy from talking on issues like family planning and use of contraceptives is considered a taboo. Therefore, awareness through education seems to be the only appropriate solution for a developing country like India.

People must be told about the significance of family planning and that shying away from it will only aggravate their financial crisis and reduce their social status. It is indeed more economical and practical to feed a family of four than a family of six or ten members. Also, they must be insisted to use contraceptives and that it is necessary for their family’s welfare and overall health.

What is Government doing about Overpopulation?

The government’s agenda to eliminate overpopulation include acting up on the root causes – education and health care. Despite making a number of reforms in these two sectors, the government is also making efforts to make people aware of family planning. A well trained team of doctors and paramedical staff in the primary health centers across the country are educating people about the advantages of a small family and its overall effects on the nation’s growth.

They also teach people about the use of contraceptives to eliminate the possibility of conception. The government is also distributing free contraceptives to remote locations through the PHCs.

The most important solutions to overpopulation are education and awareness of people. The more educated and aware the people are, the more remote will be the possibility of overpopulation. The government has made considerable effort towards keeping the population under control but a lot more still needed to be done.

Long Essay on Overpopulation in World (600 words) – Essay 5

Overpopulation in the world is a global phenomenon and is more evident in developing and underdeveloped countries. Even the developed countries witness a large influx of migratory population from the developing and under developed countries. In the following essay we will discuss on the causes of overpopulation, the problems of overpopulation, state of overpopulation in India and other developing countries and the solution of overpopulation.

What Causes Overpopulation?

1) Illiteracy

Illiteracy is one of the main causes of overpopulation in any country over the world. The countries lacking on the front of education have more population growth than others.

2) Lack of Awareness

Lack of public awareness about family planning issues is one of the prime reasons for overpopulation. People are not aware of the effects of overpopulation and its effects on the society and nation. The act is in disregard to their own financial constraints.

3) Poor Health Facilities

Poor condition of basic health amenities is also a prime cause of overpopulation. Absence of a medical professional and non availability of contraceptives, leads to incessant growth in population.

Problems related to the Overpopulation

1) Resources Depletion

Overpopulation causes the depletion of resources over a particular area. As the number of people using a specific resource increases, its fast consumption results in rapid depletion. Vital resource like food and water become scarce in case of overpopulation. Even the basic health and transport facilities become rare.

2) Unemployment

Unemployment is one of the most severe consequences of overpopulation. If the number of people in an area increases beyond limit; however, the number of vacancies in different sectors, by and large remain the same, thereby increasing unemployment. Thus, unemployment becomes a significant ill effect of overpopulation.

Poverty is the next consequence of unemployment caused by overpopulation. However, poverty is also related to scarcity resources and basic amenities of health and education, caused by overpopulation. A crowded place will always have poor employment opportunities, leading to poverty. It is considered as one of the most prominent consequences of population explosion, by the economists of the world.

4) Poor Law and Order

Factors like poverty, unemployment, depletion of natural resources result in poor law and order condition. People fight with each other over vital resources like water and food. Unemployment leads to poverty forcing people to take up illegal professions of robbery and theft, to meet their requirements.

Overpopulation in India and other Developing Countries

Overpopulation in India and similar developing countries is a great cause of concern, as it has many adverse effects on the nation’s progress and growth. All the development loses its sheen due to overpopulation. The state of public transport system and other basic amenities degrades quickly due to large number of people using them.

Overpopulation Solutions

Making the people aware of the ill effects of overpopulation is the most significant method to eliminate the latter. This awareness must be brought by education and advertising through different modes of communication. When people understand that the quality of life depends on the total number of family members, and the lesser the members the more good the finances will be; the fight against overpopulation will become much easier.

Overpopulation leads to various social, economical and developmental issues. It is therefore imperative that the world comes together on the issue of overpopulation and take necessary steps towards eliminating it. Unless the population of the world is kept under control, it would not be possible to achieve the development that the world seeks.

More Information:

• Essay on World Population Day
• Essay on Population
• Essay on Population Growth
• Essay on Family Planning in India
• Paragraph on Population

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