Gimmie a Tank of the Green Stuff

Talk about going green! No, you can’t simply pump the green scum that forms on your swimming pool into your gas tank, but motorists in the San Francisco area now can fill up on a new biofuel derived from algae.

There are plenty of proponents searching for ways to replace petroleum with renewable fuels, though some alternatives, such as corn-based ethanol, have come under fire, especially in the wake of last summer’s nationwide drought. But the biofuel system developed by South San Francisco-based Solazyme, Inc. won’t tap the food supply.

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