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Science for 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
Feature
UCS vs Anti-Science Actions
We're suing the Trump administration on a wide range of issues—and winning.
Activist Resource
Fair Access
By embracing the value of community lived experience as core to our democratic processes, government decisionmaking can benefit us all
Report
Wringing the West Dry
Climate change is disrupting the already scarce water resources of the Western United States.
Video
When Renewables Passed 25%
It has taken more than 2 decades of advocacy and hard work, but solar and wind are now breaking records, and are often the cheapest source of electricity available.
How we work
Accomplishments
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UCS Leads Amicus Brief to US Supreme Court
In support of an important climate deception case, UCS led an expert brief filed with the Supreme Court documenting ExxonMobil and Suncor Energy’s concealment and denial of the hazards they knew would result from using their fossil fuel products.