Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Alex Thomopoulos

TV Food Personality, Private Chef, Comedian and Actress

An Phung

Multimedia Journalist

Andrew Busch

Artificial Intelligence & Technology Futurist; Economist; First Chief Market Intelligence Officer for the US Government

AM2024: Growth Opportunities in a Period of Change

Andrew Cohen

Founder, EnlightenNext

Andrew Winston

Sustainability Expert; Author of "Green to Gold" & Co-author of “Net Positive"

Azure Antoinette

CEO, Commissioned Poet & Author, Millennial Advocate

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

Bernard Kouchner

Former Minister of Health of France; Founder of Nobel Peace Prize-Winning Médecins Sans Frontières

Bjorn Lomborg

Political Scientist & Author of "The Skeptical Environmentalist"

Brian Dumaine

Author of "Bezonomics," Contributor at Fortune Magazine & Editor-in-Chief at High Water Press

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Carlo Ratti

Architect & Engineer; Director of MIT's SENSEable City Lab; Founding Partner of Carlo Ratti Associati

Christopher Gavigan

Founder & Chief Product Officer, The Honest Company

Chuck Leavell

Rolling Stones Touring Keyboard Player, Frequent Collaborator with the Allman Brothers Band, Eric Clapton, and George Harrison; Political Activist

Craig Kielburger

Co-Founder of the WE Organization, Social Entrepreneur, Humanitarian & New York Times Best-Selling Author

Damian Mason

Businessman, Agriculturist, Speaker, Podcaster, Media Guest, Author & Consultant

Danny Hillis

Author & Co-Founder and Co-Chairman of Applied Minds

David Doubilet

National Geographic Photographer & Founding Member of the International League of Conservation Photographers

David Goodman

New York Times Best-Selling Author & Journalist

David Suzuki

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

Dennis Kucinich

Fox News Contributor, Former Ohio US Representative and Two-Time Presidential Candidate

Dianna Cohen

Visual Artist & Co-Founder of the Plastic Pollution Coalition

Donald Sadoway

John F. Elliott Professor of Materials Chemistry at MIT; Expert on Electrochemistry & Renewable Energy

Ambri: A Battery that Could Change the World

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Dr. Lowell Catlett

Futurist, Economist & Former Dean, Emeritus of the College of Agricultural, Consumer and Environmental Sciences at New Mexico State University

Edward C. Chow

Senior Associate at the Center for Strategic and International Studies, Energy Security and Climate Change Program

Gil Friend

President & Chief Executive Officer of Natural Logic

Graham Hill

Founder of Life Edited & TreeHugger.com

Hazel O'Leary

Former Secretary of Energy