Professor, IRES, University of British Columbia

Professor of Biology, University of North Carolina at Chapel Hill

Professor Emeritus, School of Public Policy, Georgia Institute of Technology

Professor, Dep. of Philosophy, University of North Texas (USA) & Inst. of Ecology and …

Professor of Philosophy, University of Texas, El Paso

Professor Environmental Studies, University of Victoria

University of Florida

Senior Fellow, Center for Humans and Nature

University of Washington

University of Technology Sydney