The Union of Concerned Scientists is a national nonprofit organization founded 50 years ago by scientists and students at the Massachusetts Institute of Technology who sought to use the power of science to address global problems and improve people’s lives.
The Union of Concerned Scientists puts rigorous, independent science to work to solve our planet's most pressing problems. Joining with people across the country, we combine technical analysis and effective advocacy to create innovative, practical solutions for a healthy, safe, and sustainable future.
Today, we are a group of nearly 250 scientists, analysts, policy and communication experts dedicated to that purpose.
Our founders knew science and evidence-based decision making was critical to solving many of the biggest challenges facing humankind, and to make progress we would need to work persistently in the face of often daunting odds. That is just what we’ve done.
We don’t just use science to envision a better world, we work to achieve it.
We are funded solely by individuals and foundations, and to protect our independence we do not accept corporate or government grants. Our supporters include everyday people who value rational, evidence-based decision making, as well as some of the nation’s top scientists. Specifically, we
UCS is a 501c3 nonprofit organization with highest ranking from charity rating agencies for our responsible stewardship of donations and grants.