Director of Global Climate and Energy Project and Research Professor of Energy Resources Engineering, Stanford University
Executive Dean of the Faculty of Social Science and Public Policy and Professor of Environment, Society and Climate at King’s College London
Deputy Director and Chief Economist, Potsdam Institute for Climate Impact Research
Director of Climate Programs, Natural Resources Defense Council
Sturgis Hooper Professor of Geology at Harvard University, Professor of Environmental Science and Engineering, Director of the Harvard University Center for the Environment, and Director of the Science, Technology and Public Policy Program at the Harvard Kennedy School.