Aaron Naparstek

Founder of Streetsblog, a Website Providing Daily Coverage of Transportation, Land Use & Environmental Issues in New York City

Abiola Valentine

Abiola Valentine is a poet/spoken word artist who uses writing as a means of expressing the realm of human emotions such as love, joy, pain, fear, anger, rejection, and abandonment, in order to foster individual healing and world unity.

Abrahm Lustgarten

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

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 James

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

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...

Afra Raymond

Afra Raymond is President of the Joint Consultative Council for the Construction Industry (JCC). Afra is a Chartered Surveyor and Managing Director of Raymond & Pierre Ltd. – www.raymondandpierre.com. The opinions of Afra Raymond are not necessarily held

Aidan Gallagher

Actor, Musician & UN Environment Goodwill Program Ambassador; Known for "The Umbrella Academy"

Aimee Witteman

Deputy Assistant Secretary for Intergovernmental Affairs at U.S. Department of Energy

Al Gore

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

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

Alex Chadwick

Host and Senior Correspondent , BURN

Alex Schulze

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

Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Alexander A. Likhotal

President of Green Cross International & Former Adviser to Mikhail Gorbachev

Alexandra Cousteau

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

Alexandra Palt

Chief Corporate Responsibility Officer & CEO of the Fondation L’Oréal