Sean Yoro

Artist & Climate Change Activist

David Doubilet

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

Matt Damon

Actor, Screenwriter & Producer; Co-Founder of Water.org; Expert Advocate on Global Water & Sanitation Crisis

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Robert Ballard

Renowned Ocean Explorer & Scientist

David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Thimali Kodikara

Climate Storyteller; Host of "Mothers Of Invention" Podcast

Edna Odhiambo

Independent Climate Consultant

Mithika Mwenda

Co-Founder & Executive Director of the Pan African Climate Justice Alliance

Sharona Shnayder

Environmental Activist & Founder of Tuesdays for Trash

Daphne Frias

Climate Change, Disability & Environmental Activist

Amali Tower

Climate Displacement, Migration & Refugee Expert; Founder of Climate Refugees

Q&A: Amali Tower on Climate Migration and 'Evolution Earth'

Dana Ellis Hunnes

Author of "Recipe For Survival"

Sophia Kianni

Climate Activist & Founder of Climate Cardinals

Kehkashan Basu

Forbes 30 under 30, United Nations Human Rights Champion, National Geographic Young Explorer & Founder-President of Green Hope Foundation

Wanjira Mathai

Managing Director of Africa & Global Partnerships the the World Resources Institute; Sustainability & Youth Leadership Activist

Ed Gillespie

Environmental Entrepreneur, Futurist & Author of "Only Planet"

Alejandro Durán

Artist Who Collects Trash From the Oceans and Turns It Into Disquieting Works of Art

Jamie Margolin

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

Jerome Foster

White House Environmental Justice Advisory Council Member & Executive Director of OneMillionOfUs

Isra Hirsi

Climate Change Activist; Daughter of Congresswoman Ilhan Omar

Amy Harder

Climate Change Journalist & Executive Editor of Cipher by Breakthrough Energy

Bob Kopp

Climate Scientist, Geobiologist & Climate Policy Scholar at Rutgers University

Kelsey Skaggs

Co-Founder of the Climate Defense Project

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.

Kartik Chandran

Environmental Engineer & Professor at Columbia University

Michael Shellenberger

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

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