Lisa Margonelli

Director, New America Foundation Energy Policy Initiative

Deborah Gordon

Ecologist

Michael Shellenberger

Founder & President of Environmental Progress; Expert on Energy, Climate, Security, Human Development & Politics

Joel Sartore

National Geographic Photographer & Author

Emmanuelle Chriqui

Actress Known for "Entourage;" Social Advocate for Colon Cancer, Environmental Issues & Human Rights in Congo

Pulling Back The Hollywood Curtain: with Actress + Activist

Paul Dickinson

Sustainability Expert & Executive Chairman of The Carbon Disclosure Project

Bindi Irwin

Wildlife Conservationist & Daughter of Steve Irwin; Season 21 Contestant on "Dancing With the Stars"

Rose George

Author, A Life Removed, The Big Necessity, Ninety Percent of Everything

David Crane

Strategic Advisor Executive at Pegasus Capital Advisors; Former President & CEO of NRG Energy, Inc.; Climate Advocate

Paul Gilding

Independent Writer and Advisor on a Sustainable Economy

Mike Love

Rock and Roll Hall of Fame Member, Co-author of "Kokomo", Environmental Activist

Oscar Arias

Nobel Peace Laureate, Former President of Costa Rica, Human Rights Advocate

Christiana Figueres

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

Dennis Dimick

Former Executive Environment Editor at National Geographic Magazine

Shailene Woodley

Environmental Activist & Actress Known for "Divergent"

Ricardo Lagos

Former President of Chile

Jon Waterhouse

Explorer at National Geographic Society

Terry Yosie

President & CEO at World Environment Center, Thought Leader on Sustainable Business Practice

Michael Nichols

Journalist, Photographer & Founder of the LOOK3 Festival of the Photograph

Yann Arthus-Bertrand

Aerial Photographer, Environmental Filmmaker, Conservation Advocate