Overpopulation

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the continous production of adequate food supply is directly dependent on land, water, and energy. As the population increases, so does the amount of resources needed. Even though they are not depleted, they are declining at a significant rate because they are divided by such a large number.
Fertile cropland is also a big concern. The world's cropland per capita has been declining, the shortages of croplands combined with decreasing land productivity is a major reason why there is food shortages and human malnutrition. Fossil energy is another major resource used in food production. Intensive farming technologies of many developed countries use massive amounts of fossil energy such as fertilizers and pesticides. Because fossil energy is such a limited resource, it is depleting at a faster rate because of its need as the population rises. The U.S. is already importing 50% of its oil, and projections indicate that this country will deplete its oil reserveres within 15 to 20 ...

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