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Associate Fellow


Joshua Humphreys

Joshua Humphreys is founding President and Senior Fellow of Croatan Institute, an independent institute for advanced social and environmental research and engagement, and a former Associate Fellow at Tellus Institute. He is a leading analyst… Read More »Joshua Humphreys


Giorgos Kallis

Giorgos Kallis is an ecological economist, political ecologist, and Catalan Institution for Research and Advanced Studies (ICREA) Professor at the Institute of Environmental Science and Technology, Barcelona. He is the coordinator of the European Network… Read More »Giorgos Kallis

Richard Falk.jpg

Richard Falk

Richard Falk is Albert G. Milbank Professor Emeritus of International Law at Princeton University, Chair of Global Law at Queen Mary University London, and Research Associate at the Orfalea Center of Global Studies at the… Read More »Richard Falk


William Rees

William Rees is a population ecologist, ecological economist, Professor Emeritus, and former Director of the University of British Columbia’s School of Community and Regional Planning. His research focuses on the biophysical requirements for sustainability and… Read More »William Rees