Achenyo Idachaba

Head of MitiMeth, A Nigeria-Based Environmentally Aware Production Company

Michael Shellenberger

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

Ric O'Barry

Wildlife Activist, Author & Founder of the Dolphin Project; Star of the Academy Award-Winning Documentary "The Cove"

Naomi Oreskes

Geologist & Earth Science Historian

Celine Cousteau

Environmental Activist, Storyteller & Author

Céline Cousteau's Speaker Reel

Joel Sartore

National Geographic Photographer & Author

Carl Pope

Senior Advisor to UN Envoy for Cities and Climate; Former CEO and Chairman of the Sierra Club

Barton Seaver

Celebrity Chef, Author & Sustainable Food Advocate; National Geographic Fellow; Ocean Conservationist

Reese Halter

Forest & Ocean Defender

Calvin Mackie

Inspirational Entrepreneur & Mentor

Rose George

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

David de Rothschild

Environmentalist, Adventurer & Founder of Sculpt the Future Foundation

Jonathan Trent

Former Director of Offshore Membrane Enclosures for Growing Algae; Founder of UpCycle Systems

Mark Tercek

Former President & CEO of The Nature Conservancy

Teresa Palmer

Actress, Writer & Model

Laurie David

Producer, Activist Author,The Family Dinner: Great Ways To Connect With Your Kids One Meal At A Time

Paul Dickinson

Sustainability Expert & Executive Chairman of The Carbon Disclosure Project

Erin Schrode

Expert Advocate for Health, Sustainability & Environmental Education; Named "America's Green Girl" by OK Magazine

David Crane

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

Pavan Sukhdev

President, WWF International; Environmental Economist

Emmanuelle Chriqui

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

Carl Safina

Ecologist & Writer

Annabelle Gurwitch

Actress & Humorist

Lisa Margonelli

Director, New America Foundation Energy Policy Initiative

Ambassador Munir Akram

Former Permanent Representative to the UN from Pakistan

Andy Acho

Environmental Initiatives Expert and Former Worldwide Director of Environmental Outreach and Strategy, Ford Motor Company

Bindi Irwin

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

Laura Stachel, M.D., M.P.H

Co-Founder of WE CARE Solar, a Company that Fights to Combat High Maternal Mortality Rates in Developing Countries

P. Simran Sethi

Award-Winning Journalist and Sustainability Expert

John Replogle

CEO of Seventh Generation; Sustainable Leadership Visionary; Former President & CEO of Burt's Bees