Claire Simeone

Marine Mammal Veterinarian, Conservationist & TED Fellow

Brenda Mallory

Nominee for the Position of Chairperson of the Council on Environmental Quality in the Biden Administration

Nathaniel Stinnett

Founder & Executive Director of the Environmental Voter Project

Wanjira Mathai

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

Ben Caldecott

Founding Director of the Oxford Sustainable Finance Programme & Associate Professor at the University of Oxford

Mari Copeny

Youth Activist for Access to Clean Water; Known as "Little Miss Flint"

Benny Jacobs-Schwartz

Avian Field Biologist, International Bird Guide, Wildlife Photographer & Nature Enthusiast

Benjamin Strauss

Chief Scientist, President & CEO of Climate Central

Ken Goddard

Director of the National Fish & Wildlife Forensics Laboratory, NY Times Best-Selling Fiction Author

Prince Manqoba Dlamini

Prince Nature Conservationist & Motivational Speaker

Asmeret Asefaw Berhe

Biogeochemist, Political Ecologist & Associate Professor at the University of California Merced

Dallas Goldtooth

Keep it in the Ground Organizer for the Indigenous Environmental Network & Co-Founder of the Indigenous Comedy Group

Daniela V. Fernandez

Founder & CEO of Sustainable Ocean Alliance

Jasmine Crowe-Houston

Founder & CEO at Goodr Co.

Angel Hsu

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

Robert Irwin

Wildlife & Nature Conservationist, Photographer, Author, and TV Personality; Son of Steve Irwin, Owner of Australia Zoo

Robert Irwin Reveals His Most Feared Animal! | The Cheap Seats

Cassie De Pecol

2x Guinness World Record Holder, Historical Record Breaker, Ironman Finisher, Non-Profit Founder, Brand Ambassador, App Owner & Author

Sylvia Acevedo

Engineer, Rocket Scientist & Technology Leader; Inspirational Speaker; Corporate Director at Qualcomm; Former CEO of Girl Scouts USA

Jennifer Ackerman

Award-Winning Author & Writer

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

Jen Rustemeyer

Producer and Filmmaker

Nina Fedoroff

Molecular Biologist; Biotechnology Expert & Professor of Biology at Penn State

Margaret Spring

Chief Conservation Officer and Vice President, Conservation & Science, Monterey Bay Aquarium

Nick Wobbrock

Co-Founder of Blue Forest Conservation

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

Jay Weinstein

Chef and journalist; Author of The Ethical Gourmet, a guide to finding and cooking environmentally friendly and ethically produced foods

Braam Malherbe

Extreme Adventurer, Conservationist, Youth Developer & Author

Matthew Kahn

Professor of Economics, UCLA Institute of the Environment

Joseph Romm

Author, Blogger, Physicist & Climate Expert

Paul Bunje

Senior Director, Oceans XPRIZE