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We use science to make change happen.
The Union of Concerned Scientists is a member-supported nonprofit that’s fighting for a safer and healthier world.
Our work
Report
Environmental Racism in the Heartland
A legacy of systemic racial discrimination has left communities in the Kansas City area disproportionately exposed to health-damaging pollutants.
Feature
50 Years of Science and Action
Since our founding in 1969 we've helped address some of the world’s most pressing problems.
Podcast
The Rapidly Changing Arctic
Arctic expert Joel Clement is back with an update on federal science in the region, and how Alaska Natives are adapting to the changing landscape.
Report
Wind Oversupply Myths
Wind energy is being thrown away—not because there’s too much of it, but because the grid hasn't caught up.
How we work
Accomplishments
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Ride-Hailing Will Go Electric in CA after UCS Advocacy
California passed a first-of-its kind requirement that ride-hailing companies like Uber and Lyft electrify the miles driven by their fleets. UCS brought attention to emissions produced from ride-hailing services in a 2020 report.