Ed Begley Jr.

Environmental Activist & Emmy Award-Nominated Actor

Jenna Marbles

YouTube Sensation

Mark Bittman

Former NYT Writer; Author of "How to Cook Everything" Series; Host of "Food with Mark Bittman"

Amanda Beard

Olympic Gold Medalist, Co-Founder of Beard Swim Co. & Author of New York Times Bestseller "In the Water They Can't See You Cry"

Jack Hanna

Naturalist, Adventurer & Director Emeritus of the Columbus Zoo

Doc Hendley

Global Humanitarian, Clean Water Crusader, Top 10 CNN Hero, Sustainability Advocate

Jason Clay

Senior Vice President of Food & Markets at WWF

Lo Bosworth

Entrepreneur & Lifestyle Personality, Author, and Alum of MTV’s Reality Show, "The Hills"

Lamman Rucker

Actor, Education Activist, Green Living Advocate & Entrepreneur

Louie Schwartzberg

Award-Winning Cinematographer, Director, Photographer and Filmmaker

Karina Smirnoff

Professional Dancer on "Dancing with the Stars" & Author of "We're Just Not That Into You: Dating Disasters from the Trenches"

Sebastian Copeland

Adventurer, Environmental Activist, Award-Winning Photographer, Author, Lecturer & Founder of the Sedna Foundation

Doug Fine

Globe-Trotting Journalist, Award-Winning Climate Correspondent, Goat-Herder & Author

Nathan Myhrvold

Founder of Intellectual Ventures; Former Chief Strategist & Chief Technology Officer of the Microsoft Corporation; Author of “Modernist Cuisine: The Art and Science of Cooking"

Roselinde Torres

Senior Partner and Managing Director at the consulting firm, BCG.

Peter Gleick

Co-founder & President of the Pacific Institute for Studies in Development, Environment & Security

The Three Ages of Water

Amber Jenkins

Applied Science Engineer, NASA’s Jet Propulsion Laboratory; Editor, NASA Climate Change Website

Joanna Krupa

Polish-American Model; Known for Bravo's Hit Reality Series "The Real Housewives of Miami"

Winona LaDuke

Executive Director of Honor the Earth

Tensie Whelan

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