Kira Kazantsev

Miss America 2015, Advocate, Lifestyle Correspondent & Host of "Golf Advisor Living" on the Golf Channel

Roselinde Torres

Senior Partner and Managing Director at the consulting firm, BCG.

Tensie Whelan

Director of NYU's Center for Sustainable Business; Former President of the Rainforest Alliance

Lamman Rucker

Actor, Education Activist, Green Living Advocate & Entrepreneur

Barbara Bradley Hagerty

Religion Correspondent for NPR Who Reports on the Intersection of Faith and Politics, Law, Science and Culture

Amber Jenkins

Applied Science Engineer, NASA’s Jet Propulsion Laboratory; Editor, NASA Climate Change Website

Dr. Max Rogers

Former Fighter Pilot, Healthcare Consultant

Sandra Fluke

Lawyer, Social Justice Advocate, Women's Health Expert

Stuart Firestein

Scientist; Advocate for the Public Understanding of Science

James E. Hansen

Adjunct Professor Directing the Program on Climate Science, Awareness and Solutions of the Earth Institute at Columbia University; Former Director at NASA Goddard Institute for Space Studies

Bunker Roy

Founder of Barefoot College

Mark Lynas

Environmental Writer; Author of "Our Final Warning: Six Degrees of Climate Emergency"

John Sano

Former CIA Agent & Former Deputy Director of National Clandestine Service

Charles Limb

Associate Professor of Otolaryngology-Head and Neck Surgery

Lou Waters

Aging Expert, Journalist & Former CNN Media Personality; Anchor of "Coming of Age"

Where Are They Now: Lou Waters

Claude Steele

Social Psychologist & Stereotype Expert

Alan November

International Leader in Education Technology & Author of NYT Bestseller "Who Owns the Learning?", Founder of November Learning

Story Musgrave, M.D.

Retired NASA Astronaut; Physician & Professor at Art Center College of Design

Dennis Avery

Former Director, Center for Global Food Issues at the Hudson Institute