David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Rachel Simmons

Internationally Recognized Educator & Best-Selling Author

Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Bjorn Lomborg

Political Scientist & Author of "The Skeptical Environmentalist"

Peter Hirshberg

Pioneering Entrepreneur and Voice on Disruptive Culture and Technology; Chairman of the Re:imagine Group

Juan Williams

New York Times Best-Selling Author, Fox News Political Analyst, Co-Host of "The Five" & Award-Winning Columnist

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

John Zogby

Trendspotter & Leading Pollster

General Wesley Clark

Retired Four-Star Army General & Former NATO Supreme Allied Commander

Rudolph E. Tanzi

Alzheimer's Disease Researcher; Expert on the Genetics of Neurological Disease; Professor of Neurology at Harvard Medical School

Blaise Agüera y Arcas

Leading AI Researcher, Works on Machine Intelligence at Google; Former Architect of Bing Maps and Bing Mobile

Ubi Sunt

Amy Gutmann

United States Ambassador to Germany; Former President of UPenn

Ryan Nerz

TV’s First Chief Cannabis Correspondent; Author of "MARIJUANAMERICA"

Graham Hill

Founder of Life Edited & TreeHugger.com

Jon Corzine

Former Governor of New Jersey; Former CEO of Goldman Sachs & MF Global

Elizabeth Cohen

Senior Correspondent for the CNN Health, Medical, & Wellness Unit

Elizabeth Cohen - CNN news story on baby formula shortage

Shaun Tomson

Former World Champion Surfer, Environmentalist & Motivational Speaker

James Woolsey

Former Director of the C.I.A.

Alec Ross

Author of "The Industries of the Future," and Recent Senior Advisor for Innovation to Hilary Clinton

William Frist

Chair, The Nature Conservancy Global Board; Former U.S. Senate Majority Leader, Heart Transplant Surgeon; Founder of Founding Partner of Frist Cressey Ventures and Hope Through Healing Hands

Dr. William H. Frist - Acceptance Speech