Ric O'Barry

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

Celine Cousteau

Environmental Activist, Storyteller & Author

Céline Cousteau's Speaker Reel

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

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

Annabelle Gurwitch

Actress & Humorist

Lisa Margonelli

Director, New America Foundation Energy Policy Initiative

Ambassador Munir Akram

Former Permanent Representative to the UN from Pakistan

Deborah Gordon

Ecologist

Achenyo Idachaba

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

Naomi Oreskes

Geologist & Earth Science Historian

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

Mark Tercek

Former President & CEO of The Nature Conservancy

Erin Schrode

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

Pavan Sukhdev

President, WWF International; Environmental Economist

Carl Safina

Ecologist & Writer

Andy Acho

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

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

Richard Rhodes

We Were Just Focused on How to Survive

Shahram Chubin

Nonresident senior associate in the Carnegie Nuclear Policy Program. Based in Geneva, Chubin’s research focuses on nonproliferation, terrorism, and Middle East security issues.

Peter Fusaro

Chairman & Founder, Global Change Associates

David Burwell

Director of the Energy and Climate Program at the Carnegie Endowment

Steve Goreham

Engineer, Author & Authority on Environmental and Energy Issues

Chad Pregracke

Founder of Living Lands & Waters, CNN's Hero of the Year for 2013, Environmental Speaker & Bestselling Author