Tensie Whelan

Director of NYU's Center for Sustainable Business; Former President of the Rainforest Alliance

Sophia Bush

Actress, Humanitarian & Author

Shree Bose

Grand Prize Winner of the First Google Global Science Fair & Cancer Researcher

Walter Robb

Food Retail Expert & Food Access Advocate; Principal at Stonewall Robb Advisors; Former Co-CEO of Whole Foods Market

Jason Clay

Senior Vice President of Food & Markets at WWF

Caroline Casey

Founder of Kanchi & The Ability Awards

Mark Lynas

Environmental Writer; Author of "Our Final Warning: Six Degrees of Climate Emergency"

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Bill Nye

"The Science Guy"; Science Communicator, TV Presenter & Mechanical Engineer; Climate Change Activist

Amory Lovins

Co-Founder & Chairman Emeritus of Rocky Mountain Institute

Lisa Ling

Award-Winning Journalist & Producer for CBS News

Winona LaDuke

Executive Director of Honor the Earth

Ray Kurzweil

Chairman of Kurzweil Technologies, Inventor & Futurist; Author of "How to Create a Mind"

Daniel Kraft, M.D.

Physician-Scientist; Founder of Exponential Medicine; Chair for Medicine & Neuroscience at Singularity University

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Ashley Judd

Actress, Activist & Humanitarian

Lisa Gansky

Corporate Advisor, Marketing Expert & Author of "The Mesh: Why the Future of Business Is Sharing"

Jeremy Heimans

Co-Founder & Chairman of Purpose; Best-Selling Author; Lifelong Activist & World-Renowned Expert on Building Social Movements

Lamman Rucker

Actor, Education Activist, Green Living Advocate & Entrepreneur

Dan Barber

Multi-Award-Winning Chef, Agronomist, Environmentalist, Author & Co-Owner of New York's Blue Hill Restaurant

Dan Barber - From Seed to Table - Aspen Ideas: Health 2023