Anthony Eyring/UCS
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
Video
Space-based Missile Defense: Not a Good Idea
Politicians have called for "space-based missile defense" for years. Unfortunately, it's not a very good idea.
Blog Series
Scientists Respond to the Trump Administration
Our experts and analysts weigh in on the latest developments from the White House.
Explainer
Environmental, Climate, and Energy Justice—What Do They Mean?
If you’ve encountered these concepts and aren’t totally sure what they mean—we got you.
Activist Resource
Resources for Federal Scientists
Are you a federal scientist, contractor, or federal worker? Here are resources to have on hand during the Trump administration.
How we work
Accomplishments
Clemens van Lay/Unsplash
Nuclear Security Agency Responds To UCS Scientist's Concerns
After a UCS scientist co-authored an article on the potential for a certain kind of in demand uranium fuel to be used to make nuclear weapons, US nuclear security agency NNSA agreed to sponsor a study on this risk.