Achim Steiner

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

Adam Hammes

Best-Selling Author, Environmental Educator and Consultant

Adrian Grenier

Actor Known for HBO's "Entourage"; Environmental Activist; UN Ambassador

Afra Majid Alowais

Chief Efficienology Officer, SEWA

Al Gore

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

Alejandro Durán

Artist Who Collects Trash From the Oceans and Turns It Into Disquieting Works of Art

Alexis Nikole Nelson

Wild Food Maker at BlackForager; TikTok Sensation

Amy Harder

Climate Change Journalist & Executive Editor of Cipher by Breakthrough Energy

Andrew Behar

CEO of As You Sow

Andrew Steer

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

Explore 2023: Andrew Steer, CEO of Bezos Earth Fund

Andy Goldsworthy

English Sculptor, Photographer & Environmentalist

Angel Hsu

Assistant Professor at the University of North Carolina-Chapel Hill & Founder/Director of the Data-Driven EnviroPolicy Lab

Angela Haseltine Pozzi

Artist and Founder of Washed Ashore

Annie Leonard

American Proponent of Sustainability and a Critic of Excessive Consumerism

Anthony Moffett

Former Member of the U.S. House of Representatives

Aparna Pallavi

Environment Journalist, Down to Earth Magazine

Asmeret Asefaw Berhe

Biogeochemist, Political Ecologist & Associate Professor at the University of California Merced

Barbara Kingsolver

American Novelist, Essayist and Poet

Ben Caldecott

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

Benjamin Strauss

Chief Scientist, President & CEO of Climate Central