The aspect which characterizes the present population of humans is the fact that it grows and declines at the same time. This population increase is resulted when the numbers of death rates are outnumbered by the birth rates in a country. For example, a county with a population 200 million experiences 2 million births and 1 million deaths each year will have a growth rate of 1 %. Now lets us take into account the opposite scenario in which the death rate would be 1 %. The above mentioned facts do not take into consideration the amount of immigrant flows which a country has to cope with, as most of the countries these days do not face huge immigrant inflows. There are a number of problems that lie embedded in the issue of overpopulation. So, in order to effectively deal with this alarming situation all the countries are now formulating a number of strict laws. According to a number of statistical predictions it has been speculated that if the population rates would not be channelized, then till the year 2050 the world population would eventually double or triple. Being the most populated continent in the world, Asia, faces the greatest amount of problems in comparison to all other continents. In addition, Asia has also been reported to at the number 1 rank in terms of growth and birth rates. Having an idea of this, let us have an idea about the top 10 most populated countries in the world.

10. Japan (127,799,000)

Based on the estimates of several surveys and official reports that were published in the year 2011, the population of Japan is nearly 127 million. This calculated figure is based on the comparison with the figures that were obtained in the year 2010. It is due to their strict and effective policies that the Japanese government has managed to keep the population controlled. But these tactics have given rise to yet another problem i.e. the very low fertility rates in the country. It is because of these low fertility rates combined with the higher life expectancy percentages, that the population is now being characterized by older people. In simple words, if this problem will continue than there will come a time when more than 80 percent of the population would be older.

9. Russia (143,100,000)

With a present population of about 143 million, Russia has been ranked the 9th most populous country. Based on the readings and calculations of numerous official estimates, the present Russian populations present 2.04 % of total humanity. Surprisingly, Russia has been facing a consistent decline in its population which started a few decades back. This is primarily due to the low fertility rates, increased abortions and low birth rates. In order to address the issue the former Russian President, Vladimir Putin had directed a number of laws in order to increase the birth rates in the country. This fact can be better understood through the present reports which state that in the year 1990 the population of the country was 5 million more than the present population.

8. Bangladesh (152,518,015)

The 2011 census that was conducted all over the country revealed that the population of Bangladesh has crossed the 150 million mark. Presenting 2.17 % of total humanity, this problem has given rise to several social and economic issues in the country. It has also been measured that the life expectancy rate of men and women in the country are nearly the same. The government has taken some extreme measures in order to deal with this problem. These policies have indeed yielded some positive results for the country, but still the government has failed to lower down the birth rates in the underdeveloped and rural areas of the country.

7. Nigeria (166,629,000)

Nigeria is presently the 7th most populated of all the countries in the world presenting 2.37 % of humanity. The reported population is based on the surveys that were made in the United Nations. This overpopulation issue has given rise to scarcity of resources, extreme poverty, increasing corruption, crime, unemployment etc. So, Nigeria needs to reconstitute laws and regulations in order to control the population of its cities and rural areas. In addition, imparting education to the un-educated masses can also guarantee a control in the birth rates in the country. Launching awareness programs about abortion, birth rates and other necessary measures can also help in controlling the population.

6. Pakistan (180,127,000)

Pakistan is now the 6th most populous country having one of the highest birth rates in the whole world and presenting nearly 2.56 % of total humanity. The country now faces a number of problems like poverty, corruption, unemployment, high birth rates, shortage of food supplies, etc. The present government of the country had planned to pass a law similar to the laws in other countries, but no actual action was taken in this regard. The wave of economic meltdown in the country can also be explained in terms of the increasing population of the country. In addition, the issue of terrorism has further aggravated the situation for Pakistan which is now experiencing the worst times since the time of its independence.

5. Brazil (192,376,496)

Marked by a population of nearly 192 million, Brazil has been ranked as the fifth most populous nation in the world. The above mentioned estimates were carried out by the IBGE institute recently. Furthermore, it was found the population of women is now dominating the men. Surely, Brazil has shown major progress in terms of economic, industrial and nuclear energy context, but still the problem of overpopulation persists in the country. The government needs to control the birth rates in order to stabilize its population growth which now poses an alarming situation for all the residents of the country.

4. Indonesia (237,641,326)

Ranked as the 4th most populous nation of the world, Indonesia is marked by a population of nearly 237 million individuals. This estimate is based on the census that was carried out all across Indonesia in the year 2010. Although the government had devised several family planning techniques and programs, but still they have been unable to control this avalanche of overpopulation. Over population, as a causal factor, has given rise to several social and economic issues in the country. It has also been reported that nearly 4 million babies are born in Indonesia each year which shows the high fertility rates of the couples. So, the government of Indonesia has now completely mobilized in order to bring down the birth rates in the country.

3. United States (313,931,000)

At number 3 we have the United States of America which still believes that over population is not there problem, but is the problem of China and India. Marked by the presence of more than 313 million individuals, this population presents nearly 4.47 % of humanity. To further worsen the situation the media of the country had put forward a baseless propaganda encouraging the couples to give birth to as many babies that they can. Most of the people in U.S still claim, that they will make use of the latest technology in order to increase the food supplies, thus enabling them in dealing with the over population. But what about the wave of economic turndown and unemployment which the country faces these days? The authorities of the country will soon to come to realize that they need to some serious initiatives for controlling their population.

2. India (1,210,193,422)

With more than 1.2 billion individuals, India is now the second most populous country in the world. This total Indian population presents nearly 17.22 % of all humanity which is indeed an appalling situation for the Indian Government. The main reasons behind this increase in population are the less educated masses and high birth rates in the country. Some sound predictions have revealed that in the year 2050 the population of India would have crossed the Chinese Population by a large gap. Despite of the various policies and laws passed by the Indian Government, the birth rates in the rural areas are still uncontrolled. Yet another misfortune of the Indian Nation is that in the initial 20 years after the 1947 independence of the country, no politician did anything to control the population rates in the country.

1.    China (1,347,350,000)

As expected at number 1 we have China with a population of nearly 1.3 billion. China has long been the most populous country in the world which is because of the high fertility and birth rates in the country. With the advancement in the health facilities, a greater life expectancy is not much of a surprise for us. This population expansion has resulted a decline in the food resources, job opportunities etc. Although the government had long ago passed the 1 child policy law, but still China faces the problem overpopulation. There is no doubt in asserting that in some ways the population has been stabilized, but still China has a long way to go in order to accommodate 19.17 % of human population which it has. In the early 70’s under the action of 1 child policy all the pregnancies along with the abortions were documented. After completion of the documentation process, the birth was authorized. It is still the case, but under the action of the 1 child policy only 35.9 % of the population is under restriction excluding the rural, ethnic minorities and several others. The foreigners that are presently living in China are given an exemption to this law which is applicable to all the urban residents of China.