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.

Jonathan Trent

Former Director of Offshore Membrane Enclosures for Growing Algae; Founder of UpCycle Systems

Angel Hsu

Assistant Professor at the University of North Carolina-Chapel Hill & Founder/Director of the Data-Driven EnviroPolicy Lab

Jennifer Ackerman

Award-Winning Author & Writer

Dr. Sylvia Hood Washington

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

Kartik Chandran

Environmental Engineer & Professor at Columbia University

Sonya Dyhrman

Oceanographer, Lamont-Doherty Earth Observatory; Associate Professor, Department of Earth and Environmental Sciences, Columbia University

Tundi Agardy

Marine Conservationist & Founder of "Sound Seas," Research and Policy Project to Help Protect the Oceans and Ocean Life

David Suzuki

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

Cynthia Giles

Guest Fellow at the Environmental & Energy Law Program at Harvard Law School

Kate Marvel

Climate Scientist & Author

Sonia Yeh

Professor, Department of Space, Earth and Environment, Physical Resource Theory

Tim Flannery

Environmentalist, Explorer & Author

Henry Gordon-Smith

Founder & CEO of Agritecture, Sustainability Consultant & AgTech Advisor

Asmeret Asefaw Berhe

Biogeochemist, Political Ecologist & Associate Professor at the University of California Merced

Davida Herzl

Co-Founder & CEO, Aclima

Collision Keynote: Davida Herzl

Tony Juniper

Writer, Sustainability Advisor, & Environmentalist

Margaret Spring

Chief Conservation Officer and Vice President, Conservation & Science, Monterey Bay Aquarium

Michael Shellenberger

Founder & President of Environmental Progress; Expert on Energy, Climate, Security, Human Development and Politics

Jeff Orlowski-Yang

Award-winning Filmmaker, Photographer, Entrepreneur & Climate Change Activist

Tristram Stuart

Environmental Campaigner, Author & Businessman

Jon Waterhouse

Explorer at National Geographic Society

Naomi Oreskes

Geologist & Earth Science Historian

Rick Ridgeway

Environmentalist, Mountaineer, Expedition Author, Former VP of Environmental Initiatives & Special Projects at Patagonia

Harvey Wasserman

Journalist, Author, Democracy Activist & Advocate for Renewable Energy

Carl Pope

Senior Advisor to UN Envoy for Cities and Climate; Former CEO and Chairman of the Sierra Club

James E. Hansen

Adjunct Professor Directing the Program on Climate Science, Awareness and Solutions of the Earth Institute at Columbia University; Former Director at NASA Goddard Institute for Space Studies

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Robert Ballard

Renowned Ocean Explorer & Scientist

Chad Pregracke

Founder of Living Lands & Waters, CNN's Hero of the Year for 2013, Environmental Speaker & Bestselling Author