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Desertification has re-emerged as a topic of global significance as a consequence of the United Nations Conference on Environment and Development. When first addressed over a generation ago, attention was drawn to the compelling, spectacular images of sand dunes engulfing farmlands and parched cattle dying around wells. Research tended to focus on these events as unusual phenomena that involved the unfortunate collision of climate and 'irrational' land use. Since then, the work of many researchers has shown us that desertification is a multifaceted problem that involves climatic, ...

Desertification has re-emerged as a topic of global significance as a consequence of the United Nations Conference on Environment and Development. When first addressed over a generation ago, attention was drawn to the compelling, spectacular images of sand dunes engulfing farmlands and parched cattle dying around wells. Research tended to focus on these events as unusual phenomena that involved the unfortunate collision of climate and irrational' land use. Since then, the work of many researchers has shown us that desertification is a multifaceted problem that involves climatic,...

Environmental and Human Security: Then and Now 1 2 ALAN D. HECHT AND P. H. LIOTTA * 1 U. S. Environmental Protection Agency Office of Research and Development 2 Pell Center for International Relations and Public Policy Salve Regina University 1. Nontraditional Threats to Security The events of September 11, 2001 have sharpened the debate over the meaning of being secure. Before 9/11 there were warnings in all parts of the world that social and environmental changes were occurring. While there was prosperity in North America and Western Europe, there was also increasing recognition that local...