Nick Tilsen

Native American Activist, Director of the Thunder Valley CDC

Andrew Steer

President & CEO of the Bezos Earth Fund; Former President & CEO of the World Resources Institute

Michele Hickford

Adam James

Co-Founder of Clean Energy Leadership Institute; Authority on Renewable Energy & Public Policy

Ben Caldecott

Founding Director of the Oxford Sustainable Finance Programme & Associate Professor at the University of Oxford

Melissa Lee

Founder, CEO at The GREEN Program

Meryam Omi

Head of Sustainability and Responsible Investment Strategy at Legal & General Investment Management

Dalia Grybauskaitė

President of Lithuania

Carolina Reid

Associate Professor of City & Regional Planning at UC Berkeley

Dan Fagin

Pulitzer Prize-Winning Journalist, Known for "Toms River"

Jan Schlichtmann

Environmental Lawyer & Author, Subject of the Film "A Civil Action"

Beata Szydło

Polish Politician; Member of the European Parliament & Former Prime Minister of Poland

Nick Wobbrock

Co-Founder of Blue Forest Conservation

Denis Hayes

Organizer of the First Earth Day; CEO of The Bullitt Foundation

Ryan Panchadsaram

Advisor at Kleiner Perkins; Former U.S. Deputy Chief Technology Officer for the White House; Co-Author of Speed & Scale

David Smick

Chairman & CEO, Johnson Smick International, Inc.

Nina Fedoroff

Molecular Biologist; Biotechnology Expert & Professor of Biology at Penn State

Dr. Paul Sullivan

Professor of Economics at National Defense University

Bruce Bartlett

Author, Historian & Economist; Former Policy Adviser to Regan and Bush

Erna Solberg

Prime Minister of Norway; Co-Chairs the UN Secretary General's Advocacy Group for the Sustainable Development Goals