¡§The United Nations projects that the global population, currently at 6 billion, will peak at about 10 billion in the next century and then stabilize or even decline.¡¨(popindex.Princeton.edu) A question immediately following the statement, can the Earth feed that many people? It is understood that even if food crops increase sufficiently, other renewable resources, including many fisheries and forests, are already under pressure. ¡§Our food production doubled from 1961 to 1994, but there are still people who go hungry.¡¨ (popindex.Princeton.edu) This is because the human population has increased more rapidly than the food production. One of the well-known economists Thomas Robert Malthus claimed that there was an imbalance between
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Malthus stated, ¡§there is an imbalance between our ability to produce food and our ability to produce children.¡¨(Malthus 80) He said human beings are far better at making babies than are at finding food for survival. This problem, exists in all past and present societies, and must also exist in any future society as well. Therefore Malthus and Paul both agreed that the population could not increase without an increase of food. Without an excessive population, the world¡¦s fertile land can produce enough food, or even excess food. There will be a sufficient amount of natural resources reserve of human beings. Therefore the faster the population increases; the more resources will be used. When population keeps increasing, earth environment will be put into greater danger, the overexploitation of natural resources will continue and poverty will rise in most of the world countries. It is because more people consume more food and more resources to keep their needs. As a result, if there is not enough food, human population will decline.
Malthus stated, ¡§the power of population to grow was ¡¥indefinitely greater¡¦ than the power of the earth to produce subsistence.¡¨ (Malthus, 70) He also said that there was a difference between population growth and food supply. (msumusik.mursuky.edu/~felwell/http/malthus/index) The difference is that the population increases by a geometric progression but the