The 2007 San Francisco Green Festival

It's Mayor, the SF Department of the Environment and members of SF's biodiesel community helped to convert 55% of the City's diesel fleet to run on "B20", that's 20% biodiesel, 80% petroleum, including MUNI, the SF Zoo, airport shuttles, the Fire Department and counting, which should decrease some of the city's greenhouse emissions. The SF Public Utilities Commission even has a pilot program that collects restaurant grease and turns it into biodiesel for the city's own fleet, then use the glycerine by-product to clean the very sewers the grease once clogged! Remarkably, San Francisco may be one of the first major cities to employ this truly innovative model.The sight of yesterday's oil spill in the Bay, makes these kinds of sustainable alternatives seem even more attractive.

All of this would not be possible without the world's desperate need for alternative energy solutions, (seemingly following every energy crisis), the work of a handful of eager scientists and the efforts of the Green movement. Many of those technologies and more will be on display when the Green Festival returns to the SF Concourse Exhibition Center on Brannan, this Friday thru Sunday

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