Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Leslie Dodson

Reporter & Videographer Covering International Finance, Economics, and Politics

Jeff Orlowski-Yang

Award-winning Filmmaker, Photographer, Entrepreneur & Climate Change Activist

Jason Clay

Senior Vice President of Food & Markets at WWF

Graham Hill

Founder of Life Edited & TreeHugger.com

David Suzuki

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

Alicia Silverstone

Actress & Animal Rights Activist

Bill Drayton

Social Entrepreneur, Founder & C.E.O of Ashoka. Leading an Everyone a Changemaker world movement.

Gary Hirshberg

Co-Founder & Chief Organic Optimist of Stonyfield Farm

John Holdren

Professor of Environmental Policy & Director of the Program on Science, Technology, and Public Policy at the Harvard Kennedy School of Government

Joseph P. Kennedy II

Former Member of the U.S. House of Representatives & Founder of Citizens Energy Corporation

Gro Harlem Brundtland

Former Director-General, World Health Organization

Robert Redford

Actor, Director, Producer, Environmentalist & Founder of the Sundance Film Festival

Meg Lowman

National Geographic Explorer & Arbornaut

Daniel Esty

Hillhouse Professor of Environmental Law and Policy at Yale Law School, Corporate Environmental Strategy Expert & Co-Author of "Green to Gold"

David Goodman

New York Times Best-Selling Author & Journalist

Riddhima Yadav

Climate Strategist & Sustainability Business Leader

Annabelle Gurwitch

Actress & Humorist

Leah Thomas

Intersectional Environmentalist

Peter Gleick

Co-founder & President of the Pacific Institute for Studies in Development, Environment & Security

The Three Ages of Water