Walter Isaacson

Professor of History at Tulane University, Former CEO of the Aspen Institute & Editor of Time Magazine

Jason Clay

Senior Vice President of Markets & Executive Director of the Markets Institute at the World Wildlife Fund (WWF)

TED | Jason Clay: How big brands can help save biodiversity

Gulrez Shah Azhar

Assistant Policy Analyst, RAND Corporation; Doctoral Student, Public Policy, Pardee RAND Graduate School

Bridgitt Arnold

General Manager of Communications, bgC3

William F. Tyndall

Managing Director at Net Lease Capital Energy Group; Former CEO at Center for Clean Air Policy; Former VP at Duke Energy

Scott Vitters

Sr. Dir. Environmental Management & Innovation at Nike, Former General Manager, PlantBottle™ Packaging Platform, The Coca-Cola Company

Paul Salopek

Freelance Foreign Correspondent

Randy Olson

Filmmaker and Author, "Don't Be Such a Scientist"

Miguel Jorge

Director, Ocean Initiative , National Geographic Society

Chris Johns

Editor in Chief, National Geographic Magazine

Kerry Emanuel

Professor, Program in Atmospheres, Oceans and Climates, MIT

Sean Gerrity

President of American Prairie Reserve; National Geographic Explorer & Innovator

Bill Blakemore

Correspondent, ABC News

Dennis Dimick

Former Executive Environment Editor at National Geographic Magazine

Neal Conan

Former Host, NPR's "Talk of the Nation"

Mark Lynas

Environmental Writer; Author of "Our Final Warning: Six Degrees of Climate Emergency"

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Mindy Lubber

CEO & President of Ceres, Sustainability Thought Leader & Social Impact Entrepreneur

Ayana Elizabeth Johnson

Marine Biologist, Conservation Strategist, Founder & CEO of Ocean Collectiv

Michael Nichols

Journalist, Photographer & Founder of the LOOK3 Festival of the Photograph