Matt Damon

Actor, Screenwriter & Producer; Co-Founder of Water.org; Expert Advocate on Global Water & Sanitation Crisis

Tamron Hall

Award-Winning Journalist; Former National News Anchor for NBC News; Host of the "Tamron Hall Show"

Watch Where They Hide

David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Leland Melvin

Engineer, Former NASA Astronaut & Former NFL Wide Receiver

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Moby

Musician, DJ, Photographer

Willie Nelson

Country Music Singer-Songwriter Known for "On The Road Again" & "Always On My Mind"

Rick Ridgeway

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

David Doubilet

National Geographic Photographer & Founding Member of the International League of Conservation Photographers

Edward Norton

Award Winning Actor & Filmmaker

Dyan deNapoli

Penguin Expert, TED Speaker & Award-Winning Author of "The Great Penguin Rescue"

Alison Victoria

Interior Designer; Host of HGTV's "Kitchen Crashers"

Alan Cumming

Emmy-Winning Actor Who Stars in "The Good Wife"

Tristram Stuart

Environmental Campaigner, Author & Businessman

Will Allen

Pioneer in the Urban Farming Movement, Author & Founder of Growing Power

Ian Stirling

Speaker on Business Growth, Franchising and developing email marketing

Vandana Shiva

World-Renowned Environmental Leader

Philippe Cousteau

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

Shaun Tomson

Former World Champion Surfer, Environmentalist & Motivational Speaker

Pierce Brosnan

Actor, Producer & Activist; Best Known for His Role as James Bond