Andrew Steer

President & CEO of the Bezos Earth Fund; Former President & CEO of the World Resources Institute

Bill Nussey

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

Sonia Yeh

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

Ben Caldecott

Founding Director of the Oxford Sustainable Finance Programme & Associate Professor at the University of Oxford

Kate Brandt

Chief Sustainability Officer at Google & Nation's First Federal Chief Sustainability Officer for the Obama Administration

Michael Shellenberger

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

Tensie Whelan

Director of NYU's Center for Sustainable Business; Former President of the Rainforest Alliance

Christiana Figueres

Expert on Global Climate Change; Former Executive Secretary of the UN Framework Convention on Climate Change

Tom Steyer

Business Leader; Philanthropist & Clean Energy Advocate; Co-Founder, NextGen America & Galvanize Climate Solutions; Author, "Cheaper, Faster, Better"; Former 2020 Presidential Candidate

Chris Turner

Author, Sustainability & Global Cleantech Expert

Daniel Esty

Environmental Law Professor, Sustainability Expert, Former DEEP Commissioner

Dr. Julio Friedmann

Chief Scientist at Carbon Direct & Non-Resident Fellow at the Center on Global Energy Policy at Columbia University SIPA

How to Harness Abundant, Clean Energy for 10 Billion People | Dr. Friedmann

Edna Odhiambo

Independent Climate Consultant; Authority on Climate Action & Sustainability

Katharine Hayhoe

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

Naoko Ishii

Chief Executive Officer and Chair, Global Environment Facility, USA

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

The Problem With Food & Climate - & How To Fix It | Jonathan Foley | TED

Matt Damon

Actor, Screenwriter & Producer; Co-Founder of Water.org; Expert Advocate on Global Water & Sanitation Crisis

Matt Damon & Casey Affleck Have an Epic Conversation | GQ

Gary White

CEO & Co-Founder of WaterEquity & Water.org with Matt Damon

John Passacantando

Former Executive Director of Greenpeace USA

Chad Pregracke

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

Van Jones

Emmy Award-Winning TV Host, Political Strategist & Producer; Civil Rights & Environmental Advocate; NYT Bestselling Author; CEO of REFORM Alliance

Van Jones | Milken Institute Global Conference

Adrian Grenier

Actor Known for HBO's "Entourage"; Environmental Activist, UN Ambassador & Social Impact Entrepreneur; Founder of Lonely Whale Foundation; Co-Founder of DuContra Ventures

Al Gore

45th Vice President of the United States, Nobel Peace Laureate & Bestselling Author

Ian Bowles

Co-founder of WindSail Capital, Former MA Secretary of Energy, Climate Change Expert

Riddhima Yadav

Climate Strategist & Sustainability Business Leader

Natalie Kyriacou OAM

Environmental & Social Impact Leader, Australian Top Innovator & Australia’s Top ‘Green’ Voice

Joan Michelson

Co-Host of the Electric Ladies Podcast, ESG Consultant, Business Sustainability & Leadership Expert

Vedika Bhandarkar

Chief Operating Officer at Water.org

Aditi Mayer

Keynote Speaker on Sustainability, Fashion, Environment & Social Justice

Bernadette Beck

Founder & CEO of Kindle Coffee & 1 for 1 Foundation; Actress & Journalist Known for "Riverdale"