Editor, Sierra Magazine

Secretary, U.S. Department of Housing and Urban Development

Vice President of Brand Strategy and Planning, Walmart

Former VP, Tesla; Producer, Before the Flood

Singer and Songwriter

Senior Corporate Campaigner, Greenpeace International

Director, Sustainable Operations, eBay

Global Director, Energy and Sustainability Strategy, Yahoo!

Founder and Executive Director, ClimateVoice; Former Green Energy Czar, Google

Director of Board Governance & Strategy, CalPERS

CEO, Carbon Tracker Initiative

Founding Director, Center on Global Energy Policy, Columbia University

Chairman and CEO, BP Capital

Professor, Food Business School, Culinary Institute of America

Administrator, National Oceanic and Atmospheric Administration

Deputy Director, California Governor's Office of Planning and Research

Co-founder, DeSmog Blog

Founder, Skeptical Science