Michael Shellenberger

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

Paul Polman

Business Leader; Climate & Equality Campaigner; Co-Author of “Net Positive”

Christiana Figueres

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

Julia Bacha

Award-Winning Documentary Filmmaker, Creative Director at Just Vision

Rory Stewart

Foreign Affairs & Human Rights Expert

How Not to Be a Politician: A Memoir

Chad Pregracke

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

Jeremy Gilley

Actor, Filmmaker & Founder of the Peace One Day Non-Profit

Michael D. Brown

Former Under Secretary of Homeland Security, Director of FEMA, & Talk Show Host

John Passacantando

Former Executive Director of Greenpeace USA

Annabelle Gurwitch

Actress & Humorist

Josette Sheeran

President and CEO of the Asia Society; Former Vice Chairman of the World Economic Forum.

Ellen MacArthur

Former Long-Distance Yachtswoman & Founder of the Ellen MacArthur Foundation

Tim Jackson

Ecological Economist, Playwright & Director of the Centre for the Understanding of Sustainable Prosperity

Oscar Arias

Former President of Costa Rica & Nobel Laureate

Marc Freedman

Founder & CEO of Encore.org; World Economic Forum Social Entrepreneur of the Year

Rick Tumlinson

One of the World's Top Space Visionaries; Founder of the Commercial Space Movement; Founding Trustee of the XPrize

Khalida Brohi

Indigenous Entrepreneur, Author, Storyteller & Women's Empowerment Speaker

Laurie David

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

Emmanuelle Chriqui

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

Miki Agrawal

Social Entrepreneur & Founder of TUSHY, THINX & Wild; Author of "Do Cool Sh*t" & "Disrupt-Her: A Manifesto for the Modern Woman"

Amy Lockwood

Deputy Director of Stanford's Center for Innovation in Global Health

Ambassador Munir Akram

Former Permanent Representative to the UN from Pakistan

Sharon Gannon

Co-Founder, Jivamukti Yoga

Leilani Munter

Professional Race Car Driver & Environmental Activist

Angélique Kidjo

UNICEF Goodwill Ambassador, Singer & Songwriter

Joan Baez

Legendary Folk Musician & Human Rights Activist

Rick Smolan

CEO of Against All Odds Productions, Photographer, Author & Big Data Enthusiast

David Patrick Columbia

Founder, The New York Social Diary

Michael Pritchard

Nationally acclaimed speaker, draws from background as a probation officer, educator and comedian

David Trimble

Director of Natural Resources and Environment at the Government Accountability Office.