Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Sophia Kianni

Climate Activist & Founder of Climate Cardinals

Jamie Margolin

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

Bob Kopp

Climate Scientist, Geobiologist & Climate Policy Scholar at Rutgers University

Sheila Watt-Cloutier

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

Achim Steiner

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

Christiana Figueres

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

Daniel Pauly

Daniel Pauly is the principal investigator at the Sea Around Us Project, which studies the impact of the world's fisheries on marine ecosystems. The software he's helped develop is used around the world to model and track the ocean.

Mark Tercek

Former President & CEO of The Nature Conservancy

Wanjira Mathai

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

Vanessa Nakate

Ugandan Climate Justice Activist; Founder of Youth for Future Africa

Amy Harder

Climate Change Journalist & Executive Editor of Cipher by Breakthrough Energy

Angel Hsu

Assistant Professor at the University of North Carolina-Chapel Hill & Founder/Director of the Data-Driven EnviroPolicy Lab

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.

Andrew Hoffman

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

Michael Shellenberger

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

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

Tristram Stuart

Environmental Campaigner, Author & Businessman

Naomi Oreskes

Geologist & Earth Science Historian

Heidi Cullen

Communications Director for Monterrey Bay Aquarium Research Institute; Climate Scientist

David Suzuki

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

Al Gore

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

Natalie Kyriacou OAM

Environmental + Social Impact Leader, Australian Top Innovator & Australia’s Top ‘Green’ Voice

Neeshad Shafi

Sustainability Futurist, Social Change Advocate & Expert on Climate Policy in the Middle East; Founder of Arab Youth Climate Movement Qatar

Thimali Kodikara

Climate Storyteller; Host of "Mothers Of Invention" Podcast

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"