Barbara Boxer

Environment & Education Advocate; Former Democratic Senator of California

Katharine Hayhoe

Atmospheric Scientist, Professor of Political Science & Director of Climate Science Center at Texas Tech, Chief Scientist with The Nature Conservancy

Michael Shellenberger

Founder & President of Environmental Progress; Expert on Energy, Climate, Security, Human Development & Politics

Amin Toufani

CEO of T Labs, Creator of Adaptability.org, Chair for Finance & Economics at Singularity University

Doug Fine

Bestselling Author & Award-Winning Documentary Film Director; Food Security Advocate, Regenerative Hemp Farmer & Solar-Powered Goat Herder

John Holdren

Professor of Environmental Policy & Director of the Program on Science, Technology & Public Policy at the Harvard Kennedy School of Government

Chris Turner

Author, Sustainability & Global Cleantech Expert

Bill Nussey

Founder of the Freeing Energy Project; Partner at Tech Square Ventures & Engage

Kate Brandt

Chief Sustainability Officer at Google & Nation's First Federal Chief Sustainability Officer for the Obama Administration

Winnie Byanyima

Executive Director of UNAIDS and an Under-Secretary-General of the United Nations; Former Executive Director, Oxfam International

Tom Steyer

Business Leader; Philanthropist & Clean Energy Advocate; Co-Founder, NextGen America & Galvanize Climate Solutions; Author, "Cheaper, Faster, Better"; Former 2020 Presidential Candidate

Ron Pernick

Co-Founder & Managing Director of Clean Edge, Inc.

Daniel Esty

Environmental Law Professor, Sustainability Expert, Former DEEP Commissioner

Lynn Good

Chair, President & CEO of Duke Energy

Caleb Harper

Thought Leader on Sustainable Food Systems & Climate Solutions

Caleb Harper - TED

Donald Sadoway

Award-Winning Inventor & Professor Emeritus of Materials Chemistry at MIT; Expert in Batteries & Green Metals Production

Dan W. Reicher

Entrepreneur, Investor, Lawyer & Policymaker; Executive Director of the Steyer-Taylor Center for Energy Policy & Finance at Stanford University; Authority on Renewable Energy

Sivan Ya'ari

Founder & CEO of Innovation Africa

Kartik Chandran

Environmental Engineer & Professor at Columbia University; Global Leader in Sustainable Wastewater Treatment & Engineered Resource Recovery

Daniel Schnitzer

Daniel Schnitzer is the founder of EarthSpark International, a company dedicated to helping create clean energy supply chains in Haiti.