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We use science to make change happen.
Our work
Press Release
UCS Announces New President
Johanna Chao Kreilick, an advocate for social change and justice, will serve as our new president.
Explainer
COVID-19 Vaccine FAQ
As COVID-19 vaccines become more widely available, it's important to have access to reliable scientific information. Here are answers to the most common questions.
Open letter
Scientists & Experts Want Climate Action
In this open letter signed by prominent scientists, we highlight five important steps Biden can take on climate change.
Report
"Advanced" Isn't Always Better
We studied the most prominent “advanced” nuclear reactor designs. Unfortunately, few are safer or more secure than current generation reactors.
How we work
Accomplishments
Scientific Integrity Codified in US Government
UCS has led the demand for independent, impartial science informing federal policies since 2004, when we coined the term “scientific integrity.” A recently signed presidential memo now includes numerous UCS recommendations on restoring federal science.