An earlier version of this article was presented at the annual meeting of the American Political Science Association, Washington, D.C., September 1988. The article is based on data derived from over thirty-five interviews conducted from 1988 to 1990 in the United States, Britain, France, and Nairobi (headquarters of the United Nations Environment Programme, or UNEP) and on documents and files from UNEP and the U.S. Department of State. Research was funded in part by the Graduate Research Center and the Department of Political Science at the University of Massachusetts and by the American Council of Learned Societies. For research assistance, I am grateful to Brian Symington and Bret Brown. For helpful discussions and comments on earlier versions of the article, I thank Lincoln Bloomfield, Peter Cowhey, David Feldman, Nigel Haigh, George Hoberg, Sheila Jasanoff, Peter Katzenstein, Stephen Krasner, Karen Litfin, M. J. Peterson, Robert Putnam, Peter Sand, and John Thompson, as well as the Committee on the Human Dimensions of Global Change of the National Academy of Sciences. For correcting my account, I thank Nigel Haigh and Martin Holdgate. Any remaining errors are my own.

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