1945

The state of natural resources and the human environment for food and agriculture

Man’s demands on the natural resources that sustain his existence have increased enormously with the unprecedented rise in his numbers that has occurred in modern times. Two centuries ago the world population was probably still less than 1,000 million, and by the beginning of the present century it was only a little more than 1,500 million. But it rose to 2,500 million in 1950 and 4,000 million in 1975. Although the population is generally expected to stabilize some time towards the end of the next century, further large increases are inevitable in the meantime. Looking only as far ahead as the end of this century, the latest United Nations projections indicate a world population somewhere between 5,800 and 6,600 million, with the most probable figure around 6,300 million.

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