Leonardo DiCaprio

Award-Winning Actor & Environmentalist

The Rt. Hon. Dame Jacinda Ardern

Former Prime Minister of New Zealand

Alanis Morissette

Alt-Rock Angst Icon Known for "You Oughta Know" & "Ironic"

Pierce Brosnan

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

Arnold Schwarzenegger

Actor, Producer, Director, Writer; California’s 38th Governor; Host of "Celebrity Apprentice"

Sheryl Crow

Grammy Award-Winning Singer-Songwriter

Al Gore

45th Vice President of the United States, Nobel Peace Laureate & Bestselling Author

Aidan Gallagher

Actor, Musician & UN Environment Goodwill Program Ambassador; Known for "The Umbrella Academy"

Livia Firth

Co-Founder & Creative Director of Eco-Age

Shailene Woodley

Environmental Activist & Actress Known for "Divergent"

Robert Redford

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

Ricardo Lagos

Former President of Chile

Amin Toufani

CEO of T Labs, Creator of Adaptability.org, Chair for Finance & Economics at Singularity University

Van Jones

Emmy Award-Winning TV Host, Political Strategist & Producer; Civil Rights and Environmental Advocate; NYT Bestselling Author; CEO of REFORM Alliance

Van Jones | Milken Institute Global Conference

Ayana Elizabeth Johnson

Marine Biologist, Conservation Strategist, Founder & CEO of Ocean Collectiv

Quannah Chasinghorse

Indigenous Activist & Model

Marcus Scribner

Two-Time NAACP Image Award-Winning Actor Known for ABC's "Black-ish" & Founder of Scribner Productions

Nikolaj Coster-Waldau

Actor Known for his Role as Jamie Lannister on HBO's "Game of Thrones"

Gary White

CEO & Co-Founder of WaterEquity & Water.org with Matt Damon

Vandana Shiva

World-Renowned Environmental Leader