Van Jones

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

Geoff Colvin

Senior Editor-at-Large at Fortune & Bestselling Author

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

George Soros

Chairman of Soros Fund Management LLC, Founder of Open Society Foundations & Philanthropist

Al Gore

45th Vice President of the United States, Nobel Peace Laureate & Bestselling Author

Bjarke Ingels

Founder & Creative Partner of Bjarke Ingels Group; Influential Architect

Bono

Lead Singer of U2, Activist & Co-Founder of DATA (Debt, AIDS, Trade, Africa)

Pierre Goldschmidt

A nonresident senior associate at the Carnegie Endowment

Cary Fowler

Biodiversity warrior Cary Fowler wants to save the world from agricultural collapse, one seed at a time.

Jim Hightower

Political Commentator / Progressive Activist / Humorist

Jon Bowermaster

Writer about Adventure, the Environment, and Exotic Corners of the World

John Holdren

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

Elizabeth Ferris

Senior fellow in Foreign Policy and co-director of the Brookings-LSE Project on Internal Displacement in Washington, D.C.

William J. Antholis

Managing director of The Brookings Institution

Abdul-Rehman Malik

Contributing Editor, Q-News

Anupam Mishra

To promote smart water management, Anupam Mishra works to preserve rural India's traditional rainwater harvesting techniques.

Rory Bremner

One of the UK's sharpest funny men, Rory Bremner exposes the lunacies of modern politics with devilishly clever political satire and spot-on impressions of leaders from around the world.

Denis Hayes

Organizer of the First Earth Day; CEO of The Bullitt Foundation

Kenneth Hersh

President and Chief Executive Officer of the George W. Bush Presidential Center; Founder and Former Chief Executive Officer, NGP Energy Capital Management

Lakhdar Brahimi

Ambassador Lakhdar Brahimi served as Special Adviser to the Secretary-General from January 2004-December 2005.

Nikhil Dey

Activist , Mazdoor Kisan Shakti Sangathan.

Aruna Roy

Activist , Mazdoor Kisan Shakti Sangathan

John Marks

President and Founder, Search for Common Ground

Josh Green

Chief Executive Officer Verdeo Group.

James Geary

Best-selling Author, Expert on Aphorisms and Metaphors in Business & Politics

David Orr

Paul Sears Distinguished Professor of Environmental Studies & Politics, Emeritus

Elisabet Sahtouris, Ph.D.

Elisabet Sahtouris, Ph.D. is an evolution biologist, futurist, author, speaker and consultant on Living Systems Design. Showing the relevance of evolving biological systems to organizational design, she travels as a speaker in North, Central and South Ame

Marc Gunther

Skilled Moderator, Journalist & Author of "Faith and Fortune on Working Towards a Sustainable Business Model"

Marc Gunther, moderator and speaker

Rachel Kyte

Vice President, International Finance Corporation

Andrew Savitz

Author, Speaker & Creative Advisor