Tundi Agardy

Marine Conservationist and the Founder of Sound Seas

Jessica Alba

Actress; Entrepreneur; Founder & CEO of The Honest Company

Alexandra Cousteau

Environmental Advocate & Water Policy Expert

Alicia Silverstone

Actress & Animal Rights Activist

Alyssa Milano

Actress, Author, Philanthropist & Founder of Touch by Alyssa Milano; Known for "Charmed" and "Who's the Boss"

Ambassador Dennis Ross

Author, Counselor & William Davidson Distinguished Fellow at The Washington Institute; Former Special Assistant to President Obama

Dennis Ross: The best way to avoid a war with Iran - The ...

Amy Myers Jaffe

Chair of the World Economic Forum (Davos) Global Agenda Council on The Future of Oil and Gas

Andrew Revkin

Senior Fellow for Environmental Understanding at Pace University

Andy Serwer

Managing Editor, Fortune Magazine

Arnold Schwarzenegger

Actor, Producer, Director, Writer; California’s 38th Governor; Host of "Celebrity Apprentice"

Arnold Schwarzenegger's Motivational Speech

Patricia Arquette

Academy Award-Winning Actress Known for "Boyhood"; Activist, Humanitarian & Author

Equal Pay Trailblazer: Patricia Arquette

Dr. Chris Ashworth

Dairy Technical Consultant

Robert Ballard

Renowned Ocean Explorer & Scientist

Exploring America's Last Fronteir | Robert Ballard ...

Kathy Bates

Academy Award-Winning Actress; Cancer Survivor & Chairperson for the Lymphatic Education & Research Network

Kathy Bates On Learning She Has Lymphedema: 'You Think ...

Mayim Bialik

Neuroscientist; Actress; Known For "The Big Bang Theory"

Girling Up: How to Be Strong, Smart and Spectacular

Bill Maher

Political Satirist & Host of HBO's "Real Time"

Matthew Bishop

Managing director, Rockefeller Foundation and Former Senior Editor, The Economist

Bruce Vincent

Agriculture Activist and Motivational Speaker

Robert Bryce

Energy Expert, Veteran Journalist & Acclaimed Author

Cameron Sinclair

World-Class Visionary; Co-Founder of Architecture for Humanity