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Why Isnt Everyone as Scared as We Are?
The OneTime Bonanza
The Ultimate Resource
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abortion Africa agricultural American animals aquifers areas atmosphere average Bangladesh birth birthrates caused China cities climate change contraception countries course crops death rates decades decline demographic depletion desertification developing nations disease Earth ecological economic economists Ecoscience ecosystem services ecosystems Ehrlich energy environment environmental epidemic especially exponential growth factor family-planning farm fertility food production forests future genetic global warming Green Revolution greenhouse growing growth rate Holdren Homo sapiens human population human predicament impact important increase India industrial irrigation issues L. R. Brown land less living major million natural numbers organisms overpopulation ozone P. R. Ehrlich per-capita percent photosynthesis plants policies pollution poor nations Population Bomb population connection population control population explosion population growth population problem reduced regions result rich nations rise scientists social society soil Soviet square miles tion tons tropical United virus Washington world population World Resources Worldwatch Institute York