Joseph J. Romm (1960–2026) was an MIT-trained physicist who became one of the most prominent voices in the U.S. climate movement after serving as Acting Assistant Secretary for Energy Efficiency and Renewable Energy at the U.S. Department of Energy in the 1990s.
He founded the Climate Progress blog, authored ten books—including The Hype About Hydrogen and Hell and High Water—and was named a Time “Hero of the Environment” and one of Rolling Stone’s “100 People Who Are Changing America” in 2009.
Later, as a Senior Fellow at the University of Pennsylvania’s Penn Center for Science, Sustainability, and the Media, Romm continued to challenge what he regarded as dead-end technologies and costly distractions, including hydrogen, carbon offsets, and carbon capture. Romm died unexpectedly at the age of 66 on September 14, 2026, in Washington, D.C.
Michael Barnard and Joe shared a long history of friendship and collaboration, strengthened by a memorable conversation 18 months ago following the release of the second edition of Joe’s seminal book, The Hype About Hydrogen.
That conversation between Joe and Michael was a fascinating and uniquely candid dialogue about the real solutions to climate change—and about technologies they believed risked diverting attention and investment from more effective pathways, including hydrogen, carbon capture and storage (CCS), direct air carbon capture (DAC), and some proposed approaches to green steel.
Joe had an extraordinary influence on the climate and energy-transition debate over the past three decades. His rigorous analysis, willingness to challenge conventional wisdom, and ability to communicate complex energy issues shaped the way many of us think about the transition to a clean-energy economy.
He will be deeply missed. He will not be forgotten.
