Peter was Issues Coordinator for the national Earth Day 1990 campaign and a founding member of Bay Area Action. He served many roles at BAA over the years, including as Executive Director, and leading multiple projects and campaigns.

Post BAA

Peter was Executive Director of the Earth Day Network in 2000, then returned to the Bay Area to be one of Acterra’s three co-executive directors alongside Holly Kaslewicz and David Smernoff.

He served on the Palo Alto City Council from 2006 to 2010​ and as Mayor in 2009, and has been the Policy Director for Tuolumne River Trust since 2007.

Peter presented “A Sustainable Water Supply Future” at an event of Sustainable Silicon Valley in 2023.

In 2010 Peter was listed as a Person to Watch on the “Bay Area’s Top 25 Movers & Shakers in Cleantech“ by financial consultancy RoseRyan.