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Science in service of people and the planet.
The Union of Concerned Scientists is a member-supported nonprofit that’s fighting for a safer and healthier world.
Our work
Report
Colliding Crises
Across the US, the housing crisis and climate change-fueled extreme heat are increasingly colliding.
Feature
Attacks on Science Tracker
This tool tracks attacks on science from the second Trump administration.
Feature
UCS vs Anti-Science Actions
We're suing the Trump administration on a wide range of issues—and winning.
Video
UCS: What We Do
Breathtaking imagery from photographer Daniel Beltrá showcases the range of issues that UCS works on.
How we work
Accomplishments
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UCS Influence, Advocacy, Lead to Colorado Battery Recycling Win
UCS helped draft Colorado legislation for the strongest EV battery recycling policy in the US and used local media to make the case for its passage; the bill, which will extend the useful life of EV batteries and keep them out of landfills, is now law.