Gilberto Gallopín is an independent scholar based in Argentina. Originally trained in ecology, he has worked throughout the world on a wide spectrum of issues pertaining to sustainable development: ecological systems analysis, integrated scenarios, global modeling, environmental impact assessment, and development policy. He has previously held senior positions at the UN Economic Commission for Latin America and the Caribbean, Stockholm Environment Institute, International Center for Tropical Agriculture, International Institute for Sustainable Development, and International Institute for Applied Systems Analysis (IIASA). He has also served as a professor at the University of Buenos Aires and Fundación Bariloche, Argentina, where he served as Executive President. He has published numerous articles and books. He holds a PhD in Ecology from Cornell University.