Mark Z. Jacobson

Director of the Atmosphere/Energy Program & Professor of Civil and Environmental Engineering at Stanford University

Van Jones

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

Graham Hill

Founder of Life Edited & TreeHugger.com

Ashley Judd

Actress, Activist & Humanitarian

Sylvia Earle

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

Sir Richard Branson

Businessman & Founder of Virgin Group

Yann Arthus-Bertrand

Photographer & Videographer

Matt Damon

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

Leonardo DiCaprio

Award-Winning Actor & Environmentalist

Edward Norton

Award Winning Actor & Filmmaker

Brad Pitt

Actor, Producer, Philanthropist & Environmental Activist

Seth Berkley

Global Health Expert and Epidemiologist; Senior Advisor to Brown University Pandemic Center

Seth Berkley - 3ie Evidence Dialogues Interview Series

Willie Smits

Trained Forester, Microbiologist, Conservationist, Animal Rights Activist, Wilderness Engineer & Social Entrepreneur

Jake Norton

World-Renowned Climber, Photographer & Humanitarian

Louie Schwartzberg

Award-Winning Cinematographer, Director, Photographer and Filmmaker

Kevin Surace

Internationally Recognized Futurist & Visionary on Disruptive Innovation, AI & the Age of Automation

Sebastian Copeland

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

Robert Ballard

Renowned Ocean Explorer & Scientist

Robert Redford

Actor, Director, Producer, Environmentalist & Founder of the Sundance Film Festival

Daniel Kraft, M.D.

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

Louis-Philippe Loncke

European Adventurer 2016, Explorer, Motivational Speaker, Entrepreneur, Management Consultant

Pierce Brosnan

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

JoAnn Kuchera-Morin

Composer JoAnn Kuchera-Morin is the director of the Center for Research in Electronic Art Technology (CREATE) at UC Santa Barbara.

Sam Harris

Neuroscientist, Philosopher & Bestselling Author

Jason Clay

Senior Vice President of Food & Markets at WWF

Jack Johnson

Folk Rock Singer-Songwriter; "Upside Down" & "Banana Pancakes;" UN Environment Program Ambassador

Andrew Bird

Indie Rock Multi-Instrumentalist & Singer-Songwriter

Stephen Wolfram

Founder & CEO of Wolfram Research, Inc. & Author of "A New Kind of Science"

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Doc Hendley

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