Newspapers have become overpopulated, so to speak, with warnings about human overpopulation. Such warnings have been issued regularly for decades - even centuries - with consistently incorrect predictions. On the first Earth Day, Paul Ehrlich's 1968 bestseller, The Population Bomb, was widely quoted. He predicted that by 1985, the "population explosion" would lead to world famine, the death of the oceans, a reduction in life expectancy to 42 years, and the wasting of the Midwest into a vast desert. He was about as accurate as Malthus himself, the Englishman who, in 1798, predicted catastrophic food shortages that never came.
The population doomsayers usually offer the solution of global government - BIG government - to determine, in Gaylord Nelson's words, "the optimum number of people." Ironically, where there is famine, the problem usually is not an excess of people but an excess of government, which leads to gross misallocation and misuse of resources as corrupt bureaucrats or dictators seek power more than the welfare their subjects.
http://www.jefflindsay.com/Overpop.shtml