Abrahm Lustgarten

Investigative Reporter, Speaker on Climate Change & Author of "On The Move", about America's Great Climate Migration

On the Move: The Overheating Earth and the Uprooting of America

Achim Steiner

Director of the Oxford Martin School; Former Executive Director of the United Nations Environment Programme

Al Gore

45th Vice President of the United States, Nobel Peace Laureate & Bestselling Author

Aldyen Donnelly

Co-Founder & Director of Carbon Economics at Nori

Alex Epstein

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

Alexandria Villaseñor

Climate Justice Activist & Fridays4Future Organizer; Founder of Earth Uprising

Alexandra Villaseñor | Celebrate Earth Month | Disney Channel

Alexei Arbatov

Academician and professor of the Academy of Defense, Security and Police by the President of Russia and Vice chairman of the YABLOKO party

Alexey Malashenko

The co-chair of the Carnegie Moscow Center’s Religion, Society and Security Program

Alice Bows-Larkin

Climate Scholar

Alice Rawsthorn

Award-Winning Design Critic & Design Columnist for the New York Times

Alok Sharma

British Politician Serving as President for COP26 and Minister of State at the Cabinet Office

Amali Tower

Climate Displacement, Migration & Refugee Expert; Founder of Climate Refugees

Q&A: Amali Tower on Climate Migration and 'Evolution Earth'

Amber Jenkins

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

Amy Harder

Climate Change Journalist & Executive Editor of Cipher by Breakthrough Energy

Andrew Behar

CEO of As You Sow

Andrew Hoffman

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

Andrew Jones

Co-Founder & Co-Director of Climate Interactive; Researcher; Expert on Climate and Energy Issues

Angela Mahecha Adrar

Climate Justice Leader; Executive Director of the Climate Justice Alliance

Angelicque White

Biological Oceanographer

Angélique Kidjo

UNICEF Goodwill Ambassador, Singer & Songwriter