Andrew Behar

CEO of As You Sow

Martin Keller

Director of National Renewable Energy Laboratory & President of Alliance for Sustainable Energy

Bruce Smith

Advisor and Acting Planning Director, Abu Dhabi Water and Electricity Company

Kartik Chandran

Environmental Engineer & Professor at Columbia University

Katharine Hayhoe

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

Saving Us: A Climate Scientist's Case for Hope and Healing in a Divided World

Bruce Anderson

Solar Energy Pioneer; Chairman & CEO of 247Solar Inc.

Doug Fine

Globe-Trotting Journalist, Award-Winning Climate Correspondent, Goat-Herder & Author

Bill Nussey

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

Kate Brandt

Lead for Sustainability at Google & Former Chief Sustainability Officer for the Obama Administration

Phillipa Grant

Senior Consultant, AESG

Anja-Isabel Dotzenrath

CEO, E.ON Climate & Renewables

Afra Majid Alowais

Chief Efficienology Officer, SEWA

Xiuhtezcatl Martinez

Indigenous Climate Activist, Hip-Hop Artist, Author & Youth Director of Earth Guardians

Dr. Sylvia Hood Washington

Chief Environmental Research Scientist at Environmental Health Research Associates, LLC.

Wang Tao

Resident scholar in the Energy and Climate Program based at the Carnegie-Tsinghua Center for Global Policy

Leonardo DiCaprio

Award-Winning Actor & Environmentalist

Van Jones

CEO of REFORM Alliance, CNN host, Emmy Award-winning Producer & NY Times Best-Selling Author

Al Gore

45th Vice President of the United States, Nobel Peace Laureate & Bestselling Author

Daniel Esty

Hillhouse Professor of Environmental Law and Policy at Yale Law School, Corporate Environmental Strategy Expert & Co-Author of "Green to Gold"

Edna Odhiambo

Independent Climate Consultant

Davis Reuben Sekamwa

Climate Activist, Project Manager in the RiseUp Movement & Co-Founder of 1 Million Activist Stories

Cecilia Martinez

Co-Founder & Executive Director of the Center for Earth, Energy, and Democracy

Nigel Topping

High Level Climate Action Champion

Marcelo Mena Carrasco

Former Environment Minister of Chile

Sonia Yeh

Professor, Department of Space, Earth and Environment, Physical Resource Theory

Renee Lertzman

Expert on the Intersection of Climate Change & Psychology; Author of "Environmental Melancholia"

Jamie Margolin

Climate Change Activist; Author; Founder & Co-Executive Director of Youth-Led Climate Action Group "Zero Hour"

Benjamin Strauss

Chief Scientist, President & CEO of Climate Central

Tim Flannery

Environmentalist, Explorer & Author

Tatiana Schlossberg

Award-Winning Journalist, Environmentalist, Author of "Inconspicuous Consumption: The Environmental Impact You Don't Know You Have" & Granddaughter of JFK