Conversations with Mark Jacobson: Solutions for Transitioning to Clean Renewable Energy, and Mike MacCracken and Herb Simmens: The Rationale for HPAC Support of Aggressive Mitigation. Mark Jacobson is a Professor of Civil and Environmental Engineering at Stanford University. Mike MacCracken is a retired senior US climate research scientist and White House climate policy advisor, and Herb Simmens is an author of the 2023 book: A Climate Vocabulary for the Future. Both are also HPAC Steering Circle members.
Mark Jacobson – Solutions for Transitioning to Clean Renewable Energy, April 3, 2025
Healthy Planet Action Coalition
An international group of climate scientists, engineers, entrepreneurs, and policy and advocacy experts
Terms of Use | Privacy Policy | Contact
We are an international organization located on Planet Earth, third planet from our sun in the Milky Way Galaxy.
Website design and all images and video by Bruce Melton unless otherwise attributed – free use with permission.
V2 Beta Site – See the old site here.