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The New York Times Green blog explores energy and the environment, tracking the high-stakes pursuit of a greener globe in a dialogue with experts and readers.

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Donor-supported, Pacific Legal Foundation is the oldest public interest legal organization that litigates for property rights, limited government, and free enterprise.

U.S. National Park Service - Experience Your America

Earth Island Institute organizes and encourages activism around environmental issues and provides public education. Through fiscal sponsorship, it provides the administrative and organizational framework for more than 50 individual projects.

Founded in 1969, the New England Aquarium is a global leader in ocean exploration and marine conservation. The Aquarium is one of the premier visitor attractions in Boston, with over 1.3 million visitors a year, and a major public education resource.

wiseGEEK: clear answers for common questions

Find local news & information, updated weather, traffic, classifieds, sports scores, real estate, jobs, cars, food & wine, travel, entertainment, events and more on SFGate.com. Connect to the Bay Area community.

Reporting our world daily: original nature and science coverage from National Geographic.