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Discussion Question - In 2004, approximately 3.57 billion gallons of ethanol were used as a gas additive
in the United States , according
to the Renewable Fuels Association (RFA). During the February 2006 State of the Union address, President George Bush urged
Congress to pass an energy bill that would pump up the amount to 5 billion gallons by 2012. UC Berkeley geoengineering professor
Tad W. Patzek thinks that's a very bad idea. He claims that according to his calculations, ethanol production consumes
6 units of energy for every 1 unit of energy available in the form of ethanol.
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