Emeritus Professor, University of Cape Town

Dean and Professor of Energy & Environmental Policy, Co-Director of Climate Policy Lab and Co-Director of CIERP, The Fletcher School at Tufts University

Professor of International Development at the London School of Economics and Political Science.

Deputy Director of the MIT Center for Energy and Environmental Policy Research.

Former State Secretary and Special Envoy for International Climate Action, Federal Foreign Office, Germany | Senior Fellow, CPL, Fletcher School of Law and Diplomacy

Assistant Professor of Climate and Energy Policy, The Fletcher School, Co-Director, Climate Policy Lab

Adviser (Energy) at NITI Aayog, Government of India

Head of the Renewable Energy Division, Ministry of Foreign Affairs of Brazil