Tensie Whelan

Director of NYU's Center for Sustainable Business; Former President of the Rainforest Alliance

James E. Hansen

Adjunct Professor Directing the Program on Climate Science, Awareness and Solutions of the Earth Institute at Columbia University; Former Director at NASA Goddard Institute for Space Studies

George Elvin

Green Innovation Speaker & Author

Tristram Stuart

Environmental Campaigner, Author & Businessman

Harvey Wasserman

Journalist, Author, Democracy Activist & Advocate for Renewable Energy

Tom Steyer

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

Jan Schlichtmann

Environmental Lawyer & Author, Subject of the Film "A Civil Action"

Michael Lombardi

Diving Scientist, Technologist & Environmentalist

Dyan deNapoli

Penguin Expert, TED Speaker & Award-Winning Author of "The Great Penguin Rescue"

Britta Riley

Founder of Windowfarms.org

Tundi Agardy

Marine Conservationist & Founder of "Sound Seas," Research and Policy Project to Help Protect the Oceans and Ocean Life

Chad Pregracke

Founder of Living Lands & Waters, CNN's Hero of the Year for 2013, Environmental Speaker & Bestselling Author

Ron Sims

Former Deputy Secretary for the US Department of Housing and Urban Development

Tzeporah Berman

International Program Director of Stand.earth, Chair at Fossil Fuel Non-Proliferation Treaty & Author of "This Crazy Time: Living Our Environmental Challenge"

Quitting Fossil Fuels with Tzeporah Berman - YouTube

Jules Kortenhorst

CEO, Rocky Mountain Institute

Andrew Hoffman

Holcim (US) Professor of Sustainable Enterprise at the University of Michigan

Daphne Frias

Climate Change, Disability & Environmental Activist

Rob Caughlan

Environmentalist, Surfer & Activist

Lena Samford

Environmentalist & Wellness Advocate

Dana Ellis Hunnes

Author of "Recipe For Survival"