Andy Bochman

Climate & Cyber Resilience Strategist; Author of “A Heat Dome Hits Virginia”

Dr. Julio Friedmann

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

Edna Odhiambo

Independent Climate Consultant

Bill Nussey

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

Nooshin Behroyan

CEO at Paxon Energy & Infrastructure

Henry Gordon-Smith

Founder & CEO of Agritecture, Sustainability Consultant & AgTech Advisor

Alex Honnold

Professional Rock Climber & Star of the Academy-Award Winning Documentary "Free Solo"

Jason Schenker

Top-Ranked Economist, Best-Selling Author, President of Prestige Economics & Chairman of The Futurist Institute

Sangu Delle

Entrepreneur, Author, Clean Water Activist, Soros Fellow & TEDGlobal Fellow

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

Melissa Neighbour

Urban Planner, Community Builder & Sustainability Specialist

Makaziwe Mandela

Daughter of Nelson Mandela & Director of the House of Mandela Family Foundation

Van Jones

CEO of REFORM Alliance, CNN host, Emmy Award-winning Producer & NY Times Best-Selling Author

Gov. Mike Leavitt

Founder & Chairman of Leavitt Partners, Former Governor of Utah

Jessica Margolin

Making sense of impact investment and venture philanthropy

Jamie Beard

Geothermal Activist & Executive Director at Project Innerspace

Jamie Beard | TED | The Untapped Energy Source That Could Power the Planet

Nadine Hachach-Haram

Co-Founder Proximie; NHS Clinical Entrepreneur Fellow; Plastic Surgery Registrar at NHS

Kate Brandt

Lead for Sustainability at Google & Former Chief Sustainability Officer for the Obama Administration

Rhea Suh

Authority on Environmental Climate Policy & Advocacy; Independent Consultant & Advisor; Former President of National Resources Defense Council

John Holdren

Professor of Environmental Policy & Director of the Program on Science, Technology, and Public Policy at the Harvard Kennedy School of Government