Xiuhtezcatl Martinez

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

Sheila Watt-Cloutier

Environmental, Cultural & Human Rights Advocate, Former Canadian President of the Inuit Circumpolar Council

Jennifer Ackerman

Award-Winning Author & Writer

Morel Fourman

CEO, Gaiasoft, Inc.

Dr. Anthony Leiserowitz, Ph.D.

Director of Program on Climate Change Communication; Senior Research Scientist of Forestry & Environmental Studies at Yale University

Andrew Steer

President & CEO of the Bezos Earth Fund; Former President & CEO of the World Resources Institute

Explore 2023: Andrew Steer, CEO of Bezos Earth Fund

Achim Steiner

Director of the Oxford Martin School; Former Executive Director of the United Nations Environment Programme

Abrahm Lustgarten

Investigative Reporter, Speaker on Climate Change & Author of "On The Move", about America's Great Climate Migration

On the Move: The Overheating Earth and the Uprooting of America

Michael Shellenberger

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

Alex Epstein

Founder, Center for Industrial Progress Author, Fossil Fuels Improve the Planet

Jeff Orlowski-Yang

Award-winning Filmmaker, Photographer, Entrepreneur & Climate Change Activist

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

Arunabha Ghosh

Chief Executive Officer Council on Energy, Environment and Water (CEEW)

Arunabha Ghosh - C2G Carnegie Climate Governance Initiative

Nash Grier

Social Media Guru, Digital Influencer & Environmental Activist

Ramez Naam

Computer Scientist, Science Fiction Author & Co-Chair of Energy & Environment at Singularity University

Ramez Naam - Exponential Innovation | SingularityU Thailand Summit

Tristram Stuart

Environmental Campaigner, Author & Businessman

Zack Bogue

Co-Founder of DCVC; Environmentalist & Nuclear Energy Advocate

Joel Makower

Expert in Sustainable Business, Clean Technology, and the Green Marketplace; Founder of GreenBiz.com

Tom Rand

Entrepreneur, Venture Capitalist & Author

Renat Heuberger

Chief Executive Officer & Deputy Chairman, South Pole Carbon

Christiana Figueres

Expert on Global Climate Change; Former Executive Secretary of the UN Framework Convention on Climate Change

David Doubilet

National Geographic Photographer & Founding Member of the International League of Conservation Photographers

Antonio Donato Nobre

Researches the “Ingenious Systems” of the Amazon & Illustrates Its Fragility Against Climate Change

Tom Steyer

California Business Leader; Philanthropist and Clean Energy Advocate; Former 2020 Presidential Candidate

Wang Tao

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

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Rick Ridgeway

Environmentalist, Mountaineer, Expedition Author, Former VP of Environmental Initiatives & Special Projects at Patagonia

Bruce Nilles

Founder of Sierra Club’s Beyond Coal Campaign; Expert on Carbon Pollution

Curt Stager

Ecologist, Paleoclimatologist, Science Journalist & Author

Paul Dickinson

Sustainability Expert & Executive Chairman of The Carbon Disclosure Project