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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.

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Tell State Officials: Hold Fossil Fuel Companies Accountable

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Access Denied

The Trump administration is evading legal requirements as it attacks a wide range of public health, environmental, and safety rules.
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Accomplishments

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Historic Win for Survivors of Radiation Exposure

For years, UCS has worked with communities exposed to radiation from US nuclear weapons activities for justice and compensation. Legislation providing compensation lapsed in 2024; after much advocacy, Congress renewed and expanded it to cover more people.
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