Achenyo Idachaba

Founder & CEO of MitiMeth, a Materials and Artisan Enterprise based in Nigeria

MitiMeth | Turning an invasive weed into beautiful woven objects

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

Adam Lowry

Co-Founder & Co-CEO of Ripple Foods; Co-Founder of Method Products; Champion of Sustainability & Eco-Friendly Living

The Method Method: Seven Obsessions That Helped Our Scrappy Start-up Turn an Industry U...

Aditi Mayer

Storyteller; Sustainability, Fashion, Environment & Social Justice Advocate

Adria Vasil

Author of Ecoholic, Leading Environmental Columnist.

Adrian Grenier

Actor; Environmental Activist, UN Ambassador; Social Impact Entrepreneur & Founder of Lonely Whale Foundation

Adrian Grenier - UN Environment Goodwill Ambassador, World ...

Adrian James

Co-Founder at Omada Health

Afra Majid Alowais

Chief Efficienology Officer, SEWA

Aimee Christensen

Sustainability Advisor; Founder & CEO of Christensen Global Strategies

Al Gore

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

Alan Wurtzel

Former CEO of Circuit City, Businessman and Philanthropist

Alan van Capelle

Executive Director at Friends of the High Line; Adjunct Professor of Public Service at New York University

Honoree Spotlight: Alan van Capelle

Alanis Morissette

Mental Health & Eating Disorder Advocate; Grammy-Winning Alt-Rock Angst Singer-Songwriter; Known for "You Oughta Know" & "Ironic"

Alanis Morissette Talks 'Jagged Little Pill' and Joan Jett

Alasdair Harris

Ocean Conservationist & Entrepreneur

Alejandro Durán

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

Alex Honnold

"Free Solo" Professional Rock Climber, Environmental Advocate & Host of the "Climbing Gold" Podcast

My Favorite Rock Climber - Alex Honnold | Tosh Show

Alex Schulze

Co-Founder & CEO of 4ocean; Advocate for Ocean Cleanup, Conservation & Sustainability

Alexandra Cousteau

Environmental Activist, Ocean Advocate & Storyteller; Co-Founder, Oceans2050 & Senior Advisor, OCEANA

Alexandria Villaseñor

Climate Justice Activist & Fridays4Future Organizer; Founder of Earth Uprising