Lead for Sustainability at Google & Former Chief Sustainability Officer for the Obama Administration

Director of Strategy at Singularity University

Co-Director and Senior Fellow, Energy and National Security Program

Globe-Trotting Journalist, Award-Winning Climate Correspondent, Goat-Herder & Author

Former Governor of New Mexico; Former U.S. Energy Secretary

Environmental Engineer & Associate Professor at Columbia University

Documentary Filmmaker, Writer & Co-Founder of The Redford Center; Harnessing the Power of Film and Media to Amplify Environmental Solutions

American Designer and Builder; Founder of The Phoenix Commotion

Top-Ranked Economist, Best-Selling Author & President of Prestige Economics

CNN Political Contributor; Author; Human Rights, Education & Clean Energy Advocate

Oil Policy Expert & Global Risk Consultant

Professional Rock Climber & Star of the Academy-Award Winning Documentary "Free Solo"

Actress; Entrepreneur; Founder & CEO of The Honest Company

Co-Founder Proximie, NHS Clinical Entrepreneur Fellow, Plastic Surgery Registrar at NHS, UCL Honorary Clinical Lecturer, Exponential Medicine Faculty and TED Speaker NHS

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

Environmental Lifestyle Expert, Editor in Chief & Publisher of Naturally, Danny Seo

Environmental Activist & Emmy Award-Nominated Actor

World Leading Climate Scientist, Executive Director of Project Drawdown

Founder, Chairman & Principal Analyst at Constellation Research; Author of "Disrupting Digital Business"

Entrepreneur, Emerging Technologies Expert, Academic & Celebrated Author