Sophia Bush

Actress, Humanitarian & Author

Tiki Davis

Award-Winning Entrepreneur, Successful Businessman, Oil & Gas Expert, Actor, Author & Survivor

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Daniel Pauly

Daniel Pauly is the principal investigator at the Sea Around Us Project, which studies the impact of the world's fisheries on marine ecosystems. The software he's helped develop is used around the world to model and track the ocean.

Marla Spivak

Entomologist; Focused on Practical Applications to Protect Honey Bee Populations

Peter Orszag

Economist, Vice Chairman of Corporate and Investment Banking at Citigroup, Inc. & Former Director of the Office of Management and Budget in the Obama Administration

Steven Mazie

Associate Professor of Political Studies, Bard High School Early College

Daniel Esty

Hillhouse Professor of Environmental Law and Policy at Yale Law School, Corporate Environmental Strategy Expert & Co-Author of "Green to Gold"

T. Morgan Dixon

Women's Health Advocate, Co-Founder & CEO of GirlTrek

T. Morgan Dixon GirlTrek Founders on "Black News Tonight"

Xavier Sala-i-Martin

Chief Economic Advisor to the World Economic Forum

Vanessa Nakate

Ugandan Climate Justice Activist; Founder of Youth for Future Africa

Donald Sadoway

John F. Elliott Professor of Materials Chemistry at MIT; Expert on Electrochemistry & Renewable Energy

Ambri: A Battery that Could Change the World

Joan Baez

Legendary Folk Musician & Human Rights Activist

Vicki Arroyo

Environmental Policy Influencer

Jon Gordon

10x Best-Selling Author & Leadership Expert

Sara Bronin

Mexican-American Architect, Attorney, Professor & Policymaker; Chair of the Advisory Council on Historic Preservation

Historic Preservation with Sara Bronin

Jan Schlichtmann

Environmental Lawyer & Author, Subject of the Film "A Civil Action"

Carolina Reid

Associate Professor of City & Regional Planning at UC Berkeley

Melissa Lee

Founder, CEO at The GREEN Program

Dr. Paul Sullivan

Professor of Economics at National Defense University

Justin L. Lurie

Author of "The Profit" & Global Finance Top 100 and Chairman of American Petroleum Institute & TV Pundit