Overpopulation’s Effect On Environment Essay

887 words - 4 pages

The increasing world’s population is a global issue and becomes a source of anxiety for many scholars and decision makers around the globe. U.S. Census Bureau estimated that population growth will persist into the 21st century, growing from 6 billion in 1999 to 9 billion by 2044 (2010). In a longer term, it is also projected that human population may keep increasing up to 36.4 billion in 2300 (United Nations, 2003). Population upsurge is considered a centre piece for a range of problems world would encounter in the future. This essay will point out some of main problems generated by population increase and propose some solutions to cope with the issues. In particular, the focus will be on environmental, health, and social issues.

Earth has limited carrying capacity to support the sustainability of human live. The number of population that goes beyond this capacity (overpopulation) would definitely lead to environmental degradations (Hopkins, 2007). The reason is simple, more people means more need for food and fresh water to stay alive, more demand for space to live in, more waste to produce, and more energy to consume. Consequently, the burdens of nature will be greater than before. As the results, environmental issues such irresponsible land conversion, loss of forests and wildlife, and ecological pollution (air, water, soil and noise pollution) occur in overpopulated areas (Skwirk, 2010). Let take China for example. As the most populous nation on earth, this country suffers from bio diversity loss as well as air and water pollution crisis. Pandas are in danger because a large number of their habitat has been unwisely dedicated to new purposes such as farming and timber resource. A great demand for fossil fuel vehicles and has led the country to face severe air pollution problems. About 40% of the water in the China's rivers unsuitable for human consumption due to prolong waste flowed from factories and cities into the waterways (WWF, 2010).
Growing population also shows a strong link to health problems. Health challenges particularly emerge in places whose environment and people’s lifestyle have been affected by overpopulation consequences (Bull World Health Organ, 2010). It is obvious that risky conditions such as food and water shortages, polluted air and water, insufficient sanitation, slum areas, stressful routines and ease of disease spread are likely to take place in high density population regions rather than less crowded one. All of these situations directly affect people’s health and well-being. For instance, in 1999, it was estimated that around 700,000 Indians die each year from diarrhoea due to lack of adequate sanitation and safe water (DeNormandie and Sunita 2002).

Another issue related to human population growth is social problems. The term can be defined as common conditions that spoil any part of the community such as ethnic frictions, industrial conflict, and so on. It is also related to behaviours and situations...

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