Scientist III, GESTAR/USRA, NASA Goddard Space Flight Center

Professor of Environmental Policy

Canada Research Chair and Burnaby Mountain Professor, Simon Fraser University

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

Professor of Political Science and Public Administration, University of Munich

Research Director, Stockholm Environment Institute

Universidad Politecnica de Madrid (UPM) Spain

Bloomberg Distinguished Professor, Johns Hopkins University

Research Professor of Global Sustainability Governance, Utrecht University

Walker Family Professor; Director, Center for Environmental Politics