For a general introduction, see C. Merchant, The Columbia Guide to American Environmental History (2002). See also R. J. Dubos, So Human an Animal (1970); R. M. Chute, Environmental Insight (1971); Environmental Action Association, Earth Tool Kit, ed. by S. Love (1971); P. R. Ehrlich, comp., Man and the Ecosphere (1971); Population, Resources, Environment (with A. H. Ehrlich, 2d ed. 1972), and Human Ecology (with others, 1973); J. L. Sax, Defending the Environment (1972); G. J. Marco et al., ed., Silent Spring Revisited (1987); D. A. Dunnette and R. J. O'Brien, ed., The Science of Global Change (1992); P. Shabecoff, A New Name for Peace (1997).
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