Website: http://www.ucsusa.org

Cambridge, Mass. — Core groups of scientists and engineers conduct technical studies on agriculture, arms control, energy, global resources, and transportation issues and share their findings with policy-makers and the public. UCS provides information on renewable energy, including cost/benefit analyses and guides to buying "green" power. The renewable-energy link on its Web site connects to a wealth of information. "Nucleus" magazine and the "Earthwise" newsletter feature tips and updates on UCS issues and projects.