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Notorious climate deniers have taken over key science and environmental positions in Congress, and they're pushing ExxonMobil's anti-science agenda. We need your help to fight misinformation and put science in front of policy makers.

UCS members power tough, smart, effective campaigns that push for practical solutions to some of our planet's most pressing problems—from fighting corporate and political attacks on science to combating global warming and developing sustainable ways to feed, power, and transport ourselves.

Because we do not solicit funding from government or corporations, your membership supports an independent voice that always puts the facts first. This science-first approach is why Guidestar's Philanthropedia named us one of the top three organizations working on climate change.

Support science with a tax-deductible gift today, and we'll send you our magazine, Catalyst, to keep you informed and engaged.

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If you have questions about your membership, contact us at or call 1-800-666-8276. Thank you for your support. 

With a gift of $1,000 or more, you'll join the Henry Kendall Society whose members help ensure real-world solutions to the critical environmental, energy, and global security challenges of our day.