Climate Fiction Creative Manager, Grist

Green Stories Project; Professor of Sustainable Business at the University of Southampton; author, "Habitat Man"

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

Author of Paved Paradise: How Parking Explains the World.

Mayor of Cleveland

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