Carlo Ratti

Italian Architect & Engineer; Director of MIT's SENSEable City Lab; Founding Partner of Carlo Ratti Associati

Will Allen

Pioneer in the Urban Farming Movement, Author & Founder of Growing Power

Jason Brown

Former NFL Player, Farmer & Founder of First Fruits Farm

Joel Makower

Expert in Sustainable Business, Clean Technology, and the Green Marketplace; Founder of GreenBiz.com

Raj Patel

Award-Winning Writer, Food Politics Activist, Filmmaker & Academic

Donald Sadoway

John F. Elliott Professor of Materials Chemistry at MIT; Expert on Electrochemistry & Renewable Energy

Ambri: A Battery that Could Change the World

Robert Kenner

Documentary Filmmaker; Known for "Food, Inc."

Laura Fitton

Founder & Climate Economy Evangelist at Enough.co; HubSpot, Founder of oneforty.com; co-author Twitter for Dummies

Robin Wilson

Nationally Recognized Lifestyle Brand Entrepreneur; Best-Selling Author of "CLEAN DESIGN: Wellness for your Lifestyle" & Domestic Violence Survivor

John Sununu

Former Republican (GOP) United States Senator from New Hampshire

Michael Rogers

MSNBC's 'The Practical Futurist' & Technology Expert

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Dr. Lowell Catlett

Futurist, Economist & Former Dean, Emeritus of the College of Agricultural, Consumer and Environmental Sciences at New Mexico State University

Kenneth Roth

Executive Director at Human Rights Watch

Sally Osberg

President and CEO, Skoll Foundation

Dianna Cohen

Visual Artist & Co-Founder of the Plastic Pollution Coalition

Alex Thomopoulos

TV Food Personality, Private Chef, Comedian and Actress

Yves Rossy

Military-Trained Pilot & Aviation Enthusiast

Todd Kuiken

Biomedical Engineering Manager at the Rehabilitation Institute of Chicago

Justin Hall-Tipping

The Energy Evangelist, Justin Hall-Tipping works on nano-energy startups -- mastering the electron to create power.

Jack Hidary

CEO of Sandbox AQ

Johann Koss

Founder of Right To Play, FairSport & Fire A; Former Olympic Speedskater

Reihan Salam

President of the Manhattan Group for Policy Research; Former Executive Editor of National Review

Andrew Cohen

Founder, EnlightenNext

David Doubilet

National Geographic Photographer & Founding Member of the International League of Conservation Photographers

Heidi Cullen

Communications Director for Monterrey Bay Aquarium Research Institute; Climate Scientist

Jack Perkowski

Managing Partner, JFP Holdings Ltd., Founder, ASIMCO Technologies and Author, Managing the Dragon

Damian Mason

Businessman, Agriculturist, Speaker, Podcaster, Media Guest, Author & Consultant

Craig Kielburger

Co-Founder of the WE Organization, Social Entrepreneur, Humanitarian & New York Times Best-Selling Author

Miles O'Brien

Veteran Space, Aviation, Science and Technology Journalist & Filmmaker