Aaron Naparstek

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

Aaron Sklar

Innovation in Wellness Creative Lead , IDEO

Aaron Tartakovsky

Co-Founder & CEO at Epic Cleantec

Aart Veller

Fouding partner Cool Endeavour,Cool Endeavour

Abdul-Rehman Malik

Contributing Editor, Q-News

Abdulla Ali Al-Kuwari

Investment Analyst,Qatar Holding

Abe Issa

Founder & CEO, Global Efficient Energy

Abraham Taleb

Co-Founder and Director of Search,ReWork

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

Achenyo Idachaba

Head of MitiMeth, A Nigeria-Based Environmentally Aware Production Company

Achim Steiner

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

Achumile Majija

Group Lead: Risk and Capital MI,Prudential Plc

Ada Chirapaisarnkul

Founder and Managing Director,Thai Young Philanthropist Network

Adalberto Verissimo

Co-Founder and Senior Researcher, Imazon

Adam Evans

Award-Winning Chef & Owner at Automatic Seafood and Oysters

Adam Hammes

Best-Selling Author, Environmental Educator and Consultant

Adam James

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

Adam Lowry

Co-Founder & Chief Greenskeeper of Method Products

Adam Maikkula

Co-founding CEO,Educe Social

Adam Werbach

Global CEO Saatchi & Saatchi S