In this article, you can see the impact of population growth. The world will face many effects due to a rapidly increasing population.


The population globally is approximately 83 million, and it’s expected to keep on increasing. As fast as the population increases, the forces driving environmental issues are growing too. Population growth is normally considered a linear process; you will witness constant growth across a specific time. Another measurement  alongside population growth is known as exponential growth.

The population increases with exponential growth is proportionate to already existing factors, and it keeps doubling the present growth. Hence, present population will always affect the number of newborns in every country. One more factor about population growth is whether or not the current population will eventually have more than one child per family. However, many countries are facing rapid population growth and they are working to maintain their standards of living.

China – The world’s largest population size is currently in China. As the population increases, China suffers food shortages, but they control their increasing population to offset the threat. China introduced a strict birth control policy to control this threat.

Other than the policies for birth control, most people start marrying after the age of 35 and prefer to have only one child. According to the one-child policy, China provides free educational opportunities and financial aid for that child. The government of China also provides all available birth control methods to its people.

After these policies and restrictions, a drastic fall in fertility rate was noticed between 1970 to 2000, and China successfully reduced the number of children born per woman. However, even after all the efforts made by the government, the population increased by up to 12 million.

India – By the end of 1990, the population of India reached 1 billion. There is a prediction that by 2050 the Indian population is set to explode. Since they also have a birth control method awareness program and welfare, there is a huge possibility that they will solve this problem in the future.

Only the government can place controls on or reduce the population growth rate. Historically, in India, the population increases because one woman gives birth to lots of children. The annual population growth in India is 1.2%.

However, the growth rate is gradually decreasing in India compared to the past few years. This decrease has only begun because of rising education (especially among women), easing poverty, and growing urbanization. Also, the recent government called on people to have small families.

United States – The population of the United States was 76 million in the year 1900, and by the end of 1998, the number rose to 270 million. After World War ll, the birth rate increased, but it decreased steadily within a few years. The US has the most rapidly increasing population among developed countries. However, if you evaluate worldwide population growth, you will see that growth was also double in the United States after World War ll, a sheer contrast with growth in other countries.

Experts predict that by the end of 2050, the population will increase to almost 340 million. Others are expecting it to grow around 500 million. In the United States, population growth may increase because of the number of young unmarried mothers, inadequate sexual education, birth control provision, and high fertility rates.


Overpopulation is an adverse circumstance where the quantity of the current human population goes beyond the carrying power of the earth. Different factors cause overpopulation; for example, better medical facilities, reduced mortality rate, etc are just some of the reasons. An underpopulated area can become heavily populated if it is not able to maintain the same lifestyle.

However, the increasing advances in technology every year have affected humanity in countless ways. One of these advanced technologies has been the capability to save lives and build enhanced medical treatment centers. This has increased lifespan and consequently the growth of the population.

From the last fifty or more, the population growth is said to be out of control, and the world is facing overpopulation. Historically, birth and death rates have maintained a balance in the population.

The decline in Death Rate: At the origin of overpopulation, there is a difference between the death rate and birth rate in populations. If the number of adults that die are equal to the number of children born in a year, the population will become stable. Discussion on the overpopulation topic shows that there several factors can raise the death rate for a short time. Hence, the ones that raise the birth rate do so over a long time. Our ancestors discovered agriculture, which became a major factor in maintaining their nourishment without hunting.

Better Medical Facilities: Better medical facilities mean that there is a revolution in industries taking place. Perhaps the advancement in technology is the main reason behind stabilizing the population, which is permanently disturbed.

However, scientists have stepped forward and made the production of necessary items better, specifically, food. The production of food is quite sufficient now that allows us to nourish more mouths. With the help of medical science, human beings have been able to defeat many diseases. Before medical help was available, there was a larger number of deaths because of diseases like TB, cardiovascular, diabetes, aids, cancer, etc. The survival rates from these diseases have improved tremendously.

More Hands to Overcome Poverty: When we discuss overpopulation, we must understand its psychological factors too. For thousands of years, a pretty small piece of the population was capable enough to afford comfort. Others faced poverty with big families and high infant mortality rates.

Families that go through natural disasters or poverty suffered in areas where there was overpopulation. In earlier times, the majority of extra children endured food shortages and consumed resources that were not enough in nature.

Technological Advancement in Fertility Treatment: Due to the latest technological advancements and other medical science discoveries, it became possible for couples to seek fertility treatment and have babies.

Now, we have medicines that can increase fertility and this boosts the birth rate. Moreover, due to current techniques, pregnancies are far easier than ever before.

Immigration: Many people opt to shift from their homeland to other developed countries like the UK, the USA, Canada, and Australia. These countries have better facilities, including medical, education, security, or employment.

As a result, these countries become overpopulated and crowded. Eventually, it leads the governments of these countries increase their capacity for more homes, clothes, energy, and food. As the population keeps increasing, density becomes a problem.

Lack of Family Planning: Developed or developing countries have a massive number of illiterate people who face poverty and have zero knowledge regarding family planning. Early marriages and young mothers are quite common Lack of knowledge about family planning will never allow these people to understand the negative effects of overpopulation.

Advantages of Population Increase:

The major advantage of population increase in a particular country is economic growth—it means that a greater number of parents invest in their children. This investment means that purchasing will increase accordingly. Every new and big family will at least buy essential items such as clothing, food, sporting goods, and toys, as well as afford educational expenses across two decades of their child’s growth and upbringing. The amount of these essential items will eventually feed the economy.

However, new families will look for new homes too. So, the construction of new homes and buildings will improve industries economically. Moreover, the increased population will make countries more potent. Below are the advantages of population increase;

  1. As the number of people increases, the size of markets will increase too, and by increasing the sizes of markets, there can be significant advantages for economies.
  2. There might be a rise in the mobility factor if it results from an increase in immigration or birth rate. Growing industries can employ new workers for labor. These people will most likely be familiar with new technical methods and ideas. In this scenario, you can save firms significant training costs.
  3. An increase in population will lead to higher demand for products and services. You will have the opportunity to encourage investment. This could lead to newer technologies being introduced.
  4. You will require more labor today or in the future because the increase in population will demand more products and services. However, you can hire immigrants in your worker’s team, and new births will ultimately increase the demand for your industry’s product.

Disadvantages of Population Increase: 

Overpopulation may have its positive side. However, overpopulation is not good in many ways. Here are some disadvantages of population;

  1. Unrestricted population growth without equal agricultural development will cause food shortages. Fortunately, the worldwide agricultural supply is currently exceeding the requirements of the population. 
  2. Whenever the population increases, you require strong agricultural development because weak agriculture will lead people toward starvation. Even though population growth is slow, it will be difficult to meet demands at some point. Food distribution remains under stress in some countries. 
  3. Although the world population is still not enough to occupy all the land in the world, free population growth can encourage overpopulation and civil disorder. Countries with a large number of populations experience a property shortage. An increase in population will require the government to invest in the development of less attractive areas on earth so that they can meet property needs.
  4. The increasing population in the world includes a large dependent aging people too. In the United States, experts predict that the group of people above 65 years of age will be almost 20% of the population by the end of 2030. The distribution in population changes, and these changes can drive a society’s taxes according to age groups. For example, people 65 years of age and over are not capable of earning enough, so the government will not charge them and provide them benefits.