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digg_url = 'http://digg.com/autos/Chevy_tricks_kids_into_thinking_SUVs_are_greem_with_this_ad'; Chevy has two new TV ads for its Tahoe hybrid. First a little background. The Chevy Tahoe hybrid won Green Car Journal's Green Car of the Year award last year. A full-size SUV winning a green car award supplied much comedic fodder for Top Gear (see first video below the fold). Okay, the first new Tahoe hybrid ad (see second video below the fold) begins with a riddle: Which is heaver, a hundred poun

New Zealand's Aquaflow Bionomic announced late last week that they have successfully produced a sample of biodiesel from wild algae in sewage ponds. This announcement means Aquaflow Bionomic is the first to get the fuel from algae that were not specially grown in the laboratory. The algae clean the sewage water (or industrial waste streams from farmers or food processors) while making the biofuel. A company spokesman said, "The market potential for this product is almost unlimited in the peak-oi