Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Van Jones

CEO of REFORM Alliance, CNN host, Emmy Award-winning Producer & NY Times Best-Selling Author

Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Hugh Evans

Humanitarian; Founder & CEO of Global Poverty Project

John Wood

Founder & Board Co-Chair of Room to Read; Former Microsoft Marketing Executive

Parag Khanna

Managing Partner at FutureMap; Strategic Advisor to Governments & Global Companies; Bestselling Author; TED Speaker

Rye Barcott

Co-Founder & CEO of With Honor, Veteran and Author of "It Happened on the Way to War"

Raj Patel

Award-Winning Writer, Food Politics Activist, Filmmaker & Academic

John Passacantando

Former Executive Director of Greenpeace USA

Joseph Stiglitz

American Economist, Professor at Columbia University & Nobel Memorial Prize in Economic Sciences 2001

Majora Carter

Real Estate Developer, Peabody Award-Winning Broadcaster & Urban Revitalization Strategy Consultant

Caroline Casey

Founder of Kanchi & The Ability Awards

Graham Hill

Founder of Life Edited & TreeHugger.com

Doc Hendley

Global Humanitarian, Clean Water Crusader, Top 10 CNN Hero, Sustainability Advocate

Ted Turner

Media Mogul & Philanthropist

Robin Chase

Transportation Entrepreneur, Founder & Former CEO of Zipcar; Author of "Peers Inc: How People and Platforms Are Inventing the Collaborative Economy and Reinventing Capitalism"

George P. Bush

Politician & Land Commissioner of Texas

John Zogby

Trendspotter & Leading Pollster

Jeff Taylor

Founder of Monster.com & Eons.com

Kweisi Mfume

Political & Business Leader

Jesse Jackson

Civil Rights Activist & Politician

Peter Diamandis

Founder & Executive Chairman of the XPRIZE Foundation; Author; Named One of The World's 50 Greatest Leaders

Ian Bremmer

President of Eurasia Group and GZERO Media; Political Scientist, Author, Entrepreneur & Lecturer

The US vs. Itself — and Other Top Global Risks in 2024 | Ian Bremmer | TED

Sir Richard Branson

Businessman & Founder of Virgin Group

Dan Ariely

Behavioral Economist; Professor at Duke University; Author; Founding Member of The Center for Advanced Hindsight

Dean Karlan

Behavioral Economist, Social Entrepreneur & Author

Jalen Rose

Former ESPN Analyst & NBA Player

Antonia Juhasz

Leading Energy Analyst, Author & Investigative Journalist Specializing In Oil

Chris Sacca

Google & Twitter Innovation Guru

Chris Hughes

Senior Fellow, Institute on Race, Power, and Political Economy; Co-founder of Facebook & Former Editor-in-Chief at The New Republic