Andrew Hoffman

Holcim (US) Professor of Sustainable Enterprise at the University of Michigan

Mark Steyn

Author and Commentator, Leading Canadian Human Rights Activist

Naomi Oreskes

Geologist & Earth Science Historian

David Crane

Strategic Advisor Executive at Pegasus Capital Advisors; Former President & CEO of NRG Energy, Inc.; Climate Advocate

Jonathan Trent

Former Director of Offshore Membrane Enclosures for Growing Algae; Founder of UpCycle Systems

Mark Tercek

Former President & CEO of The Nature Conservancy

Harvey Wasserman

Journalist, Author, Democracy Activist & Advocate for Renewable Energy

Shel Horowitz

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

Michael Shellenberger

Founder & President of Environmental Progress; Expert on Energy, Climate, Security, Human Development and Politics

Alex Epstein

Founder, Center for Industrial Progress Author, Fossil Fuels Improve the Planet

Christiana Figueres

Expert on Global Climate Change; Former Executive Secretary of the UN Framework Convention on Climate Change

Antonio Donato Nobre

Researches the “Ingenious Systems” of the Amazon & Illustrates Its Fragility Against Climate Change

Paul Dickinson

Sustainability Expert & Executive Chairman of The Carbon Disclosure Project

Carl Pope

Senior Advisor to UN Envoy for Cities and Climate; Former CEO and Chairman of the Sierra Club

Rob Harmon

President and CEO of EnergyRM

Pavan Sukhdev

President, WWF International; Environmental Economist

Tim Jackson

Ecological Economist, Playwright & Director of the Centre for the Understanding of Sustainable Prosperity

John Passacantando

Former Executive Director of Greenpeace USA

Chad Pregracke

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

Anna David

NYT Best-Selling Author & Founder of Launch Pad Publishing; TEDx Speaker & Podcaster, "Fail Your Way to Success"; Addiction Recovery Advocate

Overcoming Epic Failure

Brittany Hodak

Disruptive Marketing, Branding and Customer Experience Expert; Award-Winning Entrepreneur; Co-Founder of The Superfans Company

Wilson Cruz

LGBTQ Activist & Actor; Known for “My So Called Life,” “Thirteen Reasons Why” & “Star Trek: Discovery”

Wilson Cruz dishes on new comedy ‘Mother Of The Bride’

Hiten Shah

Hiten Shah is an American entrepreneur and startup advisor. He is the cofounder and president of the analytics companies KISSmetrics and Crazy Egg.

David Hung

Founder, President and CEO of Medivation, 2014 Ernst and Young Entrepreneur of the Year

Sendhil Ramamurthy

Sendhil Ramamurthy starred in television series like "Heroes" and "Covert Affairs."

Jennifer Bradley

Founding Director of the Center for Urban Innovation at the Aspen Institute

Gerard van Grinsven

Healthcare innovator, Former President and CEO of Cancer Treatment Centers of America.

Deborah A. Senior

Deborah Nelson is responsible for worldwide marketing of HP?s servers, storage, software and services.

Steve Epner

Technology Expert and Consultant

Woody Norris

Woody Norris is a serial inventor of electronics, tools and cutting-edge sonic equipment -- such as the LRAD acoustic cannon.