Rose Marcario

Former President and CEO of Patagonia; Partner at ReGen Ventures

Matt Damon

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

Al Gore

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

Mark Ruffalo

Actor, Director, Producer, Screenwriter & Environmental Activist

Leonardo DiCaprio

Award-Winning Actor & Environmentalist

James Cameron

Chair of Crown Agents; Former Chairman of Overseas Development Institute

Don Cheadle

Actor, Activist & Author; Known for "Iron Man 2" & "Hotel Rwanda"

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Bill Nye

"The Science Guy"; Science Communicator, TV Presenter & Mechanical Engineer; Climate Change Activist

Ashley Judd

Actress, Activist & Humanitarian

Michael Liebreich

Chairman & CEO of Liebreich Associates

William Nordhaus

Nobel Prize Winner; Sterling Professor of Economics & Professor, School of Forestry and Environmental Studies at Yale

Aidan Gallagher

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

Aidan Gallagher On 'The Umbrella Academy' and His Music | Seventeen

Ricardo Lagos

Former President of Chile

Quannah Chasinghorse

Indigenous Activist & Model

Quannah ChasingHorse on Representation, Climate Exploitation

Jerome Foster

White House Environmental Justice Advisory Council Member & Executive Director of OneMillionOfUs

Christiana Figueres

Expert on Global Climate Change; Former Executive Secretary of the UN Framework Convention on Climate Change

Michael Spence

Nobel Prize Winning Economist & Commissioner for the Global Commission on Internet Governance; Holds Dual Professorship with New York University & Stanford University

Gary White

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

Van Jones

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