{ Your Impact }

You stand for a better world

The Union of Concerned Scientists puts rigorous, independent science to work to solve our planet’s most pressing problems. When you support the Union of Concerned Scientists, you are making it part of your life story to build a healthier planet, a safer world, and a more equitable society.

When you support the Union of Concerned Scientists, you ensure that our mission is carried out in the following key areas:


Our experts undertake rigorous, independent research, analyzing pressing problems and developing innovative solutions that prioritize human health, and are both equitable and cost effective.

Fighting Misinformation

When special interests release bogus studies, corporations sow doubt about science, or political operatives censor, manipulate, or undermine government science, UCS is there to set the record straight with the public, the news media, and our elected officials.


Our experienced researchers communicate to the media, to the public, and directly to key decision makers at the national, state, and local levels, advocating for changes in public policies and corporate practices.


We mobilize our 500,000 supporters to press for specific changes that will result in healthier communities, sustainable environment, and a safer world. We also know the best way to achieve positive, lasting change is to work together with allies who bring diverse talents, knowledge, and experience to an issue. That’s why we are currently providing technical expertise and advocacy know-how to more than 1,500 local and national organizations.

Together, we solve the planet’s most pressing problems

  • We combat climate change and seek to alleviate harm caused by the heat, sea level rise, and other consequences of runaway emissions.
  • We strive to develop sustainable ways to feed, power, and transport ourselves.
  • We work to reduce the existential threat of nuclear war.
  • We ensure our solutions advance racial and economic equity.
  • We fight back when powerful corporations or special interests mislead the public on science.

“To preserve the planet for future generations, we need to aggressively confront large issues like climate change and preventing nuclear weapons proliferation. UCS is a forceful, clear voice calling for solutions and facilitating communications to policymakers and the public.”

Dennis Sullivan
UCS supporter

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