The U.S. Corn-to-Ethanol Program 
..... The US has been spending energy and 
other resources which produced CO2 emissions, and billions of dollars 
for about 8 years to build out the enterprise (cropping + 
corn-to-ethanol processing + gather/transport/blending), plus spending 
about 30 - 45 billion dollars in subsidies, tax credits and depreciation
 write-offs to achieve next to nothing regarding reducing the CO2 
equivalent emissions of light duty vehicles. In fact, the 
corn-to-ethanol enterprise, on an A to Z basis, likely produced a net 
INCREASE in CO2 emissions.
Far
 greater CO2 emission reductions, at a much lesser use of energy and 
other resources, and at a much lesser capital cost, would be achieved 
just by increasing the CAFE requirements. No wonder the US 
corn-to-ethanol program is seen as an expensive, ineffective folly in 
foreign lands.....
Read the entire article at:     
http://theenergycollective.com/willem-post/287061/us-corn-ethanol-program 
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