Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Van Jones

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

Mayim Bialik

Neuroscientist, Mental Health Advocate & Actress Known for "The Big Bang Theory"

Lawrence Summers

Professor & Former President of Harvard University; Former Secretary of the Treasury, Director of the National Economic Council, & Chief Economist of the World Bank

Joseph Stiglitz

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

Peter Orszag

Economist, Vice Chairman of Corporate and Investment Banking at Citigroup, Inc. & Former Director of the Office of Management and Budget in the Obama Administration

Parag Khanna

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

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

Barbara Boxer

Former Democratic Senator of California

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Bill Maher

Political Satirist & Host of HBO's "Real Time"

Peter Diamandis

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

Shashi Tharoor

Diplomat & Author; Former United Nations Under-Secretary-General

Michael D. Brown

Former Under Secretary of Homeland Security, Director of FEMA, & Talk Show Host

James Woolsey

Former Director of the C.I.A.

Robert Kenner

Documentary Filmmaker; Known for "Food, Inc."

Joseph P. Kennedy II

Former Member of the U.S. House of Representatives & Founder of Citizens Energy Corporation

Graham Hill

Founder of Life Edited & TreeHugger.com

David Goodman

New York Times Best-Selling Author & Journalist

Robert Bryce

Energy Expert, Veteran Journalist & Acclaimed Author

Ambassador Dennis Ross

Author, Counselor & William Davidson Distinguished Fellow at The Washington Institute; Former Special Assistant to President Obama

Stella McCartney

Fashion Designer, Founder, Stella McCartney

Dallas Goldtooth

Keep it in the Ground Organizer for the Indigenous Environmental Network & Co-Founder of the Indigenous Comedy Group

John McArthur

International development economist, is a senior fellow with the United Nations Foundation

Jane McAdam

Nonresident senior fellow in the Brookings-LSE Project on Internal Displacement

Gonzalo Delacámara

Director of the IE Center of Water & Climate Adaption; Global Expert in Climate Change Adaption & Authority in Sustainability & Natural Resources

IDA WC 2022 - Dr. Gonzalo Delacámara

Gina Battye

Psychological Safety Consultant, Trainer & Advisor; CEO of the Psychological Safety Institute

Gina Battye - Showreel

Karimah Hudda

Regenerative Leadership & Founder & Chief Catalyst at illumine earth

Building an Ecosystem of Regenerative Leadership with Karimah Hudda

Lucas Joppa

Senior Managing Director & Chief Sustainability Officer at Haveli Investments; Microsoft’s first Chief Environmental Officer

Data-Driven Sustainability: Can Tech Save Us From Climate Catastrophe?

Sangita Iyer

Multiple Award-Winning Nature & Wildlife Filmmaker, Broadcast Journalist, National Geographic Explorer & Author of "Gods in Shackles"

Explorer Classroom | Elephant in the Classroom with Sangita Iyer