Peter Thiel

Former CEO and Co-founder of PayPal; Technology Entrepreneur, Investor and Philanthropist

Maroon 5

American Pop/Rock Band Known for the Hit Singles, "Maps," "Love Somebody" & "Misery"

Anthony Padilla

One Part of Comedy Duo Smosh Brothers, Internet Comedian

Michael Buckley

Internet Celebrity, Comedian and Vlogger of Celebrity Humor

Justine Ezarik

YouTuber, Comedian, Internet Celebrity, Actress & Television Host; Best Known as iJustine

Ian Hecox

Member of Comedy Duo "Smosh" & YouTube Star

Jack Johnson

Folk Rock Singer-Songwriter; "Upside Down" & "Banana Pancakes;" UN Environment Program Ambassador

Shel Horowitz

Green Guerrilla Marketer, National Environmental Hall of Fame, Social Activist, and Author

Spencer Wells

Geneticist, Anthropologist, Author, Entrepreneur, Adjunct professor at the University of Texas at Austin

Pink

Singer-Songwriter, Actress, Philanthropist & Environmental Activist

Mark Ruffalo

Actor, Director, Producer, Screenwriter & Environmental Activist

Lisa Gansky

Corporate Advisor, Marketing Expert & Author of "The Mesh: Why the Future of Business Is Sharing"

Robert Zubrin

Aerospace Engineer, Founder of Pioneer Astronautics & Bestselling Author of “The Case for Nukes: How to Beat Global Warming and Create a Free, Open, and Magnificent Future"

Andrew Busch

Artificial Intelligence & Technology Futurist; Economist; First Chief Market Intelligence Officer for the US Government

AM2024: Growth Opportunities in a Period of Change

Jake Norton

World-Renowned Climber, Photographer & Humanitarian

Don Cheadle

Actor, Activist & Author; Known for "Iron Man 2" & "Hotel Rwanda"

Alicia Silverstone

Actress & Animal Rights Activist

Graham Hill

Founder of Life Edited & TreeHugger.com

Laurie David

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

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

David Suzuki

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

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Karina Smirnoff

Professional Dancer on "Dancing with the Stars" & Author of "We're Just Not That Into You: Dating Disasters from the Trenches"

Molly Sims

Actress, Model & Lifestyle Expert; Environmental & Ocean Activist

Tim Sanders

Bestselling Author, Technology Pioneer, Expert on Collaboration & Relationships

Jeremy Rifkin

Leading Global Technologist, Futurist, Authority on World Economic & Environmental Trends

Robert Redford

Actor, Director, Producer, Environmentalist & Founder of the Sundance Film Festival

Chad Pregracke

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

Alyssa Milano

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

Ray Kurzweil

Chairman of Kurzweil Technologies, Inventor & Futurist; Author of "How to Create a Mind"