World Population

According to the United Nations Population Division, the world population reaches 6.5 billion in 2005, is expected to increase by more than 76 million a year, from 7.7 billion to 10.6 billion in 2050. The availability of cultivated land and the improvement of the efficiency of land food production can reach the limit. Even if we specify that ocean conditions, climate, its impact on soil quality, and humans use agricultural land, we can not supply food to the population increase.

Today, 55% of the world population is concentrated in urban areas, accounting for 70% of world GDP. According to UN statistics, by 2020 nearly 70% of the world's population will live in cities. This phenomenon will be felt more strongly than in the Asia-Pacific region, but currently there are 17 mega-cities in the Asia-Pacific region with a population of over 10 million people, which is estimated to be 22 by 2030. However, in many parts of Asia, the problem has begun to reach a turning point. In the Philippines it is estimated that traffic congestion in the Metro Manila area will cost nearly $ 57 million in potential income per day. Even in Hanoi, the capital city of Vietnam, if the number of cars on the road continues to increase at the present speed, traffic will be expected to effectively occupy most of the city.

Today, we experienced "population explosion". This means that the world's population has soared and has risen to an unpopular number. Looking back on the history, the population of the world estimated to be 200 million in 3000 BC, but now the world population reaches 7 billion people. When we reach an important point in the environment, we must find a solution for this rapid growth. Many problems have occurred due to a sudden population explosion. These environmental problems are growing at astonishing rates. New technology has improved the standard of living for many people, but this overpopulation has deprived other people of their decent standard of living. Also, we must ask ourselves, "Is this growth sustainable?" There are many environmental factors leading to overpopulation. The following is a detailed analysis of the four possible effects of the excess population as above.

Issues related to overpopulation. China is the world's most populous country, accounting for 1.2 billion people, or 21% of the world's population (P.R.B.7). Over the next few years, China is facing serious social and economic problems related to overpopulation. Excessive area may lead to land and resource degradation, pollution, and harmful living environment. The Chinese government has sought a solution to the problem of population growth and has achieved some success.