Thank you.

Your support helps develop science-based solutions for a healthy, safe, and sustainable future.

Rachel Cleetus
Senior Climate Economist
Climate and Energy Program

Ways to give

There are many ways you can help put rigorous, independent science to work to solve our planet’s most pressing problems.

Our pledge to members

We are pleased that UCS continues to receive recommendations from the United States’ premier charity rating agencies, Charity Navigator, the Better Business Bureau, and the American Institute of Philanthropy. Your investment in the Union of Concerned Scientists is all the more valuable, because to preserve our integrity we do not accept corporate or government grants. Your gift is building a healthy planet and a safer world. UCS is a 501c3 nonprofit organization and all gifts are tax deductible.