Sources for Further Study

Brown, L. State of the World 2000. New York: W. W. Norton, 2000. Provides a comprehensive framework for the global debate about the future of the world in the new century. Presents invaluable analysis of negative environmental trends and a guide to emerging solutions.

Heiser, C. B., Jr. Seed to Civilization: The Story of Food. 2d ed. San Francisco: W. H. Freeman, 1981. A concise account of the plants that feed people.

National Research Council. Lost Crops of the Incas: Little-Known Plants of the Andes with Promise for Worldwide Cultivation. Washington, D.C.: National Academy Press, 1990. Presents an excellent example of ways in which economically cultivatable plants may be used for food.

Weiner, J. The Next One Hundred Years: Shaping the Future of Our Living Earth. New York: Bantam Books, 1990. Well-written account of the ecological problems that confront the human population as it continues to expand.

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