Don is the founder of Evolutionary Change and author of The Regeneration Handbook: Transform Yourself to Transform the World (New Society Publishers, 2024).

He is an internationally-recognized leader in Transition Towns Movement, serving in several different capacities over the past 17 years: first as Education & Outreach Coordinator for Transition Colorado, then as founder and Executive Director of Transition Sarasota (Florida) and Executive Director of Transition US. Don presently serves as Training Coordinator for the global Transition Network.

He also holds a Master’s in Environmental Leadership from Naropa University, a certification in Permaculture Design from the Central Rocky Mountain Permaculture Institute, and regularly teaches on a wide variety of topics including leadership development, community organizing, effective collaboration, and local food systems.

In 2019, Don edited and published 10 Stories of Transition in the US: Inspiring Examples of Community Resilience-Building. He currently lives in Boulder, Colorado.