Steven Eidelman

Co-Founder and COO; Whistle

Bill Nussey

Founder of the Freeing Energy Project; Partner at Tech Square Ventures & Engage

Kehkashan Basu

Forbes 30 under 30, United Nations Human Rights Champion, National Geographic Young Explorer & Founder-President of Green Hope Foundation

Daniela V. Fernandez

Founder & CEO of Sustainable Ocean Alliance

Jasmine Crowe-Houston

Founder & CEO at Goodr Co.

Sylvia Acevedo

Engineer, Rocket Scientist & Technology Leader; Inspirational Speaker; Corporate Director at Qualcomm; Former CEO of Girl Scouts USA

How Sylvia Acevedo Defied Barriers to Become Girl Scout CEO

Dr. Sylvia Hood Washington

Chief Environmental Research Scientist at Environmental Health Research Associates, LLC.

Leland Melvin

Engineer, Former NASA Astronaut & Former NFL Wide Receiver

Katharine Hayhoe

Atmospheric Scientist, Professor of Political Science & Director of Climate Science Center at Texas Tech, Lead Scientist with The Nature Conservancy

Saving Us: A Climate Scientist's Case for Hope and Healing in a Divided World

Ramez Naam

Computer Scientist, Science Fiction Author & Co-Chair of Energy & Environment at Singularity University

Ramez Naam - Exponential Innovation | SingularityU Thailand Summit

Marla Spivak

Entomologist; Focused on Practical Applications to Protect Honey Bee Populations

Sophia Bush

Actress, Humanitarian & Author

Ayana Elizabeth Johnson

Marine Biologist, Conservation Strategist, Founder & CEO of Ocean Collectiv

What If We Get It Right?: Visions of Climate Futures

Mark Moffett

Entomologist, Nature Photographer & Author

Mark Z. Jacobson

Director of the Atmosphere/Energy Program & Professor of Civil and Environmental Engineering at Stanford University

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

William McDonough

Renowned Architectural Designer, Advisor & Co-Author of "Cradle to Cradle + The Upcycle"

Doc Hendley

Global Humanitarian, Clean Water Crusader, Top 10 CNN Hero, Sustainability Advocate

Robert Ballard

Renowned Ocean Explorer & Scientist

David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation