Associate Professor of History, University of Virginia

California Advocacy Director, National Resources Defense Council

Former Director, SF Department of the Environment

Television Host, Science Educator

Professor of Sociology and Human Geography, University of Oslo

Vice President of Business Development, Tesla Motors

Co-Founder, Good Guide

Senior Advocate & Program Manager, Refugees International

Coordinator for Energy and Environment, Mexican Institute of Competitiveness

Senior Climate Scientist, Spark Climate Solutions

Artist; Author, “Saving Time,” “How to Do Nothing”

President, Shell Oil

Author, Weather

Founder + Principal, Studio O

Former Director, Office of Transportation and Air Quality, U.S. EPA

Executive Director, Our Children's Trust

Senior Vice President, Advisory Services, BSR

Professor of Geosciences and International Affairs, Princeton

Former Ecuador Oil Minister; Former OPEC Secretary General