Joseph Stiglitz

American Economist, Professor at Columbia University & Nobel Memorial Prize in Economic Sciences 2001

Jeremy Rifkin

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

Robert Ballard

Renowned Ocean Explorer & Scientist

Jacqueline Novogratz

Founder & CEO of Acumen Fund

Karen Tse

Human Rights Defender & Social Entrepreneur; Founder of International Bridges of Justice

Amy Myers Jaffe

Leading Expert on Global Energy Policy & Sustainability

Amy Myers Jaffe: TEDx Energy Policy

Gary White

CEO & Co-Founder of WaterEquity & Water.org with Matt Damon

Robert Bryce

Energy Expert, Veteran Journalist & Acclaimed Author

A Question of Power: Electricity and the Wealth of Nations

William McDonough

Renowned Architectural Designer, Advisor & Co-Author of "Cradle to Cradle + The Upcycle"

Sebastian Copeland

Adventurer, Environmental Activist, Award-Winning Photographer, Author, Lecturer & Founder of the Sedna Foundation

Roger Martin

Management Thinker, Author, Strategist & Advisor

Vinod Khosla

Founder & Manager of Khosla Ventures; Founding CEO of Sun Microsystems

Vinod Khosla | TED

Ambassador Dennis Ross

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

Nash Grier

Social Media Guru, Digital Influencer & Environmental Activist

Pamela Meyer

Founder & CEO of Calibrate; Author of "Liespotting;" TED Speaker

Peter Senge

Senior Lecturer in Leadership and Sustainability at the MIT Sloan School of Management, Pioneer in the Field of Learning Organizations, and Author of The Fifth Discipline

Matt Miller

Fortune Columnist, Author & Radio Host

Pranav Mistry

Computer Scientist & Inventor

Tundi Agardy

Marine Conservationist & Founder of "Sound Seas," Research and Policy Project to Help Protect the Oceans and Ocean Life

Matthew Bishop

Nonresident Senior Fellow of Global Economy and Development at the Center for Sustainable Development