Author, "The Water Knife"

CEO, Hight Logistics

Senior Vice President, California Trucking Association

Executive Director, North American Council for Freight Efficiency

Heavy-Duty Vehicles Program Director at the International Council on Clean Transportation

IPCC Climate Scientist, author, Humanity’s Moment: A Climate Scientist’s Case for Hope

Author, The Quickening: Creation and Community at the Ends of the Earth

Journalist, Author of “Paved Paradise, How Parking Explains the World”

Mayor of Cleveland; Chair, Climate Mayors

Former Mayor of Toronto

Strategy Consultant, Future Matters; former youth climate activist

Chief Technology Officer, Rebel Force Tech Solutions; former youth climate activist

Producer of “Youth Unstoppable;” former youth climate activist

Founder, Center for Wild Spirituality; Author, “Church of the Wild: How Nature Invites Us into the Sacred”

Executive Director, Initiative for Responsible Mining

Activist and Actor

Mayor, Rawlins, Wyoming

President, Citizens for Responsible Energy Solutions

Reporter, E&E News

Co-Director, Climate Litigation Network, Urgenda Foundation