Beattra Wilson

Assistant Director of Urban & Community Forestry at U.S. Forest Service; Diversity Strategist

Opening Keynote: Beattra Wilson, USDA Forest Service

Emma Camp

Marine Biologist & Award-Winning Corals Expert

Vanessa Nakate

Ugandan Climate Justice Activist; Founder of Youth for Future Africa

Dr. Anthony Leiserowitz, Ph.D.

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

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

Tristram Stuart

Environmental Campaigner, Author & Businessman

Denis Hayes

Organizer of the First Earth Day; CEO of The Bullitt Foundation

Robert Ballard

Renowned Ocean Explorer & Scientist

Chad Pregracke

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

Winona LaDuke

Executive Director of Honor the Earth

Erik Solheim

Former Executive Director of the UN Environment Program

Scott W. Tinker

Director of the Bureau of Economic Geology; State Geologist of Texas; Geosciences Professor at The University of Texas at Austin

Anthony Swift

Director of the Natural Resources Defense Council of Canda

Meg Lowman

National Geographic Explorer & Arbornaut

Dr. Julio Friedmann

Chief Scientist at Carbon Direct & Non-Resident Fellow at the Center on Global Energy Policy at Columbia University SIPA

Joan Michelson

Co-Host of the Electric Ladies Podcast, ESG Consultant, Business Sustainability & Leadership Expert

Vedika Bhandarkar

Chief Operating Officer at Water.org

Liz Bonnin

Award-Winning Science Expert & Broadcaster; Known for "Blue Planet Live" and "Drowning in Plastic"

Neeshad Shafi

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

Christine Figgener

Marine Conservation Biologist & Ocean Advocate, "The Sea Turtle Biologist"

Michael Liebreich

Chairman & CEO of Liebreich Associates

Samuel Ramsey

Entomologist; Science Communicator; Founder & Director of the Ramsey Research Foundation

Aimee Witteman

Deputy Assistant Secretary for Intergovernmental Affairs at U.S. Department of Energy

Davis Reuben Sekamwa

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

Bill Nussey

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

Sharona Shnayder

Environmental Activist & Founder of Tuesdays for Trash

Sophia Kianni

Climate Activist & Founder of Climate Cardinals

Kimi Werner

Freedive-Spearfishing Champion, Certified Chef & Award-Winning Environmentalist