Achenyo Idachaba

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

MitiMeth | Turning an invasive weed into beautiful woven objects

Achumile Majija

Group Lead: Risk and Capital MI,Prudential Plc

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...

Adam Werbach

Global CEO Saatchi & Saatchi S

Adria Vasil

Author of Ecoholic, Leading Environmental Columnist.

Alan Weisman

Journalist / Author

Alec Baldwin

Emmy Award-Winning Broadway, Film & TV Actor

Alex Epstein

Founder of the Center for Industrial Progress; Author of "Fossil Future: Why Global Human Flourishing Requires More Oil, Coal, and Natural Gas - Not Less"

Alex Jacobs

Director of Research, Keystone Accountability

Alex Laskey

Founder and Former President at OPOWER

Alex Matthiessen

President, Riverkeeper

Alex Nicholls

Lecturer in Social Entrepreneurship, Skoll Centre for Social Entrepreneurship

Allan Savory

Grassland Ecosystem Pioneer

Alysia Reiner

Actress Best Known for "Orange Is the New Black;" Women's Empowerment Speaker & Environmental Activist

Ambrosius Ruwindrijarto

Founder and president of Telapak

Ameenah Gurib-Fakim

Professor, Managing Director at Cephyr, Chemist, Gardener, Photographer & Writer of Books on the Flora of the Tropics, Medicinal Plants

Ami Dar

Founder and Executive Director, Idealist.org.

Amit Chatterjee

CEO of Hara Software

Andrew Hoffman

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

Andrew Youn

Senior Partner, Executive Director, & Co-Founder at One Acre Fund, Anti-Hunger Activist