How trash could fuel cleaner takeoffs
Turning city waste into jet fuel could trim aviation’s footprint. Unlike other biofuels, it does not use cropland.
Tue, Nov 18, 2025
The Harvard Climate Brief brings Harvard faculty expertise on climate change and sustainability to the wider world. Authors’ views are their own. Republish.
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Transportation
Understanding and addressing “chemtrails”
In the wake of the coronavirus, people concerned about government control over vaccines and pandemic responses began to organize against geoengineering. A sociologist studying environmental governance explores how to confront their concerns without validating conspiracy thinking.
Wed, Jun 25, 2025
Unpacking Trump’s EV policy overhaul
By modeling different proposed changes to EV policy, two Harvard economists calculate impacts on adoption, emissions, and federal spending.
Mon, Mar 31, 2025
All perspectives expressed in the Harvard Climate Brief are those of the authors and not of Harvard University or the Salata Institute for Climate and Sustainability. Any errors are the authors’ own. The Harvard Climate Brief is edited by an interdisciplinary team of Harvard faculty.