I just tried to post a message about the April 10 event, but it is held because of the pdf attachment, so this is the message I posted to SFBAYOIL about it; which includes a link directly to the pdf if you so prefer...
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April 10 David Fridley is going to do a presentation on "The Myths of Biofuels" - the two SF groups along with the SF Green Party Sustainability Committee are co-sponsoring this. For those folks on the SFNCPC list, this will be the focus of the meeting in September, as well.

For those who don't want to open the pdf flyer that is attached (and some folks may not get it if you're on digest mode, if so, it's available here: http://www.sfbayoil.org/sfoa/media/Myths%20of%20Biofuels2%20white%20background.pdf ), the specifics are.

The Myths of Biofuels

What is the energy return for biofuels vs. the energy used
to produce them?        
What is the environmental impact of biofuels production?
Do biofuels have a future?
Are biofuels a sustainable alternative to fossil fuels?

Tuesday, April 10, 2007 at 7:00 p.m.
The Pacific Energy Center
851 Howard Street
San Francisco, CA. 94103