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The Union of Concerned Scientists puts rigorous scientific analysis to work on pressing real-world problems, helping to develop and implement practical solutions to build a healthy environment and a safer world. Your donation today will go to work helping limit global warming emissions from cars and power plants, promote strategies to cut our projected oil use in half, advance clean energy options to power our future, and much more!

As part of our 20/20/20 Challenge, we're making a special offer to help people like you make simple, everyday changes in lifestyle that can reduce the amount of global warming emissions they're responsible for by 20 percent or more. Make a gift to UCS of $35 or more and we'll send you a complimentary copy of Cooler Smarter: A Practical Guide to Low-Carbon Living. We'll also send you our quarterly newsletter, Earthwise, and our magazine, Catalyst. You'll be surprised how easy, inexpensive, and effective it is for you to have a real effect on global warming.

With your gift of $35 or more, we'll send you your copy of Cooler Smarter: A Practical Guide to Low-Carbon Living.

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UCS is a 501(c)(3) charitable organization. 
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If you have questions about your membership, contact us at member@ucsusa.org or call 1-800-666-8276. Thank you for your support.