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Adrian Grenier

Actor Known for HBO's "Entourage"; Environmental Activist; UN Ambassador

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Erin Brockovich
(4 ratings)

Consumer Advocate, Author, TV Host & Environmental Activist

Dr. Michio Kaku
(4 ratings)

World-Renowned Futurist & Theoretical Physicist

Dr. Jane Goodall

Internationally Renowned Primatologist, Founder of the Jane Goodall Institute & UN Messenger of Peace

Van Jones
(5 ratings)

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

Ed Begley Jr.

Environmental Activist & Emmy Award-Nominated Actor

Philippe Cousteau
(1 rating)

Explorer, Social Entrepreneur & Environmental Advocate; Grandson of Captain Jacques-Yves Cousteau

Jeff Orlowski

Award-winning Filmmaker, Photographer, Entrepreneur & Climate Change Activist

Sir Richard Branson
(1 rating)

Businessman & Founder of Virgin Group

Peter Diamandis
(1 rating)

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

Dr. Sylvia Hood Washington

Chief Environmental Research Scientist at Environmental Health Research Associates, LLC.

Patricia Arquette

Academy Award-Winning Actress, Activist, Humanitarian & Author

Ray Kurzweil
(5 ratings)

Chairman of Kurzweil Technologies, Inventor & Futurist

Sylvia Earle

Explorer-in-Residence at National Geographic & Oceanographer; Former Chief Scientist of the NOAA

Rick Ridgeway

Environmentalist, Mountaineer, Expedition Author, VP of Environmental Initiatives & Special Projects at Patagonia

Mark Tercek

Former President & CEO of The Nature Conservancy

Majora Carter

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