Alex Chadwick

Host and Senior Correspondent , BURN

Ayana Elizabeth Johnson

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

What If We Get It Right?: Visions of Climate Futures

Barton Seaver

Celebrity Chef, Author & Sustainable Food Advocate; National Geographic Fellow; Ocean Conservationist

Bill Blakemore

Correspondent, ABC News

Bridgitt Arnold

General Manager of Communications, bgC3

Carrie Norton

Founder and President, Green Business BASE CAMP

Chris Johns

Editor in Chief, National Geographic Magazine

Chris Lane

CEO, Aspen Center for Environmental Studies

Chris Reij

Senior Fellow, World Resources Institute

Craig D. Allen

Research Ecologist, USGS

Dan Porterfield

President & CEO of the Aspen Institute; Advocate for Expanding Educational Opportunity & Improving the Human Condition

Dan Porterfield - Heart of Giving Podcast

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.

David Bray

Professor, Department of Earth and Environment, Florida International University

David J. Hayes

US deputy secretary

David Monsma

Executive Director of Energy and Environment Program, The Aspen Institute

David Orr

Paul Sears Distinguished Professor of Environmental Studies & Politics, Emeritus

David Owen

Staff Writer, The New Yorker

Dennis Dimick

Former Executive Environment Editor at National Geographic Magazine

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Drew Westen, Ph.D

Professor, Department of Psychology and Psychiatry and Behavioral Sciences, Emory University