Francesco Stipo

President & CEO of the Houston Energy Club; Leading Authority on International Affairs & Energy

Tim Sanders

Bestselling Author, Technology Pioneer, Expert on Collaboration & Relationships

Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Bjorn Lomborg

Political Scientist & Author of "The Skeptical Environmentalist"

Elizabeth Economy

C.V. Starr Senior Fellow & Director of Asia Studies at the Council on Foreign Relations

Gov. Mike Leavitt

Founder & Chairman of Leavitt Partners, Former Governor of Utah

Bertrand Piccard

First to Circumnavigate the Globe Non-Stop in a Hot Air Balloon

Jackob Bossira

Leading Expert on Global Investment, Energy & Communications

Alicia Silverstone

Actress & Animal Rights Activist

Graham Hill

Founder of Life Edited & TreeHugger.com

Patricia Arquette

Academy Award-Winning Actress, Activist, Humanitarian & Author

Vivek Wadhwa

Entrepreneur, Emerging Technologies Expert, Academic & Celebrated Author

Shaun Tomson

Former World Champion Surfer, Environmentalist & Motivational Speaker

Nikki Reed

Actress, Singer-Songwriter & Model; Founder & CEO of Eco-Sustainable Fashion Brand Bayou With Love; Autism & Environmental Advocate

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

Tony Juniper

Writer, Sustainability Advisor, & Environmentalist

Andrew Steer

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

Explore 2023: Andrew Steer, CEO of Bezos Earth Fund

Matt Rogers

Partner, Clean Tech Practice McKinsey & Company

Mission Possible Partnership: 400 Partners. 7 Heavy Industries. 1 ...

W. Brett Wilson

Three Season Star of CBC TV's “Dragons' Den”, Celebrated Entrepreneur & Philanthropist

Mark P. Mills

Senior Fellow at the Manhattan Institute & Faculty Fellow at Northwestern University’s McCormick School of Engineering and Applied Science

Peter Duncan

Executive Chairman and Founder of MicroSeismic, Inc

David Crane

Strategic Advisor Executive at Pegasus Capital Advisors; Former President & CEO of NRG Energy, Inc.; Climate Advocate

Xavier Sala-i-Martin

Chief Economic Advisor to the World Economic Forum

Emmanuelle Chriqui

Actress Known for "Entourage;" Social Advocate for Colon Cancer, Environmental Issues & Human Rights in Congo

Emmy Rossum

Actress Known for Showtime's "Shameless" & Singer-Songwriter

Ed Gillespie

Former Counselor to the President; Former Chairman of the RNC; Top Republican Strategist

Leila Connors Petersen

Co-Founder & Director, Tree Media Group

Bindi Irwin

Wildlife Conservationist & Daughter of Steve Irwin; Season 21 Contestant on "Dancing With the Stars"

Daryl Hannah

Actress, Best Known for "Kill Bill" & "Splash"; Environmental Activist

Heather Wilson

U.S. Secretary of the Air Force