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San Francisco has more restaurants per capita than any other U.S. city, producing tasty meals-and thousands of gallons of used cooking oil. See how the SFGreasecycle program is turning this grease glut into fuel for the city's bus fleet.
For more information on the SFGreasecycle program go to sfwater.org/index.aspx?page=465
For more information on biodiesel go to www.biodiesel.org/
For more information about Science in the City, please visit:
www.exploratorium.edu/scienceinthecity