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Old 06-26-2013, 10:18 PM   #76
stevie88
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Scientific Support for Ethanol
The net energy question always comes up. Does corn ethanol produce more energy than it consumes? The answer is “yes,” according to Science and the U.S. Department of Energy.
Support for ethanol comes from a 2006 study in the prestigious journal Science which found that, “Ethanol can replace gasoline with significant environmental benefits...
Professors Dan Kammen and Alex Farrell of the Energy and Resources Group at UC Berkeley, with their students Rich Plevin, Brian Turner and Andy Jones along with Michael O’Hare, a professor in the Goldman School of Public Policy, deconstructed six separate high-profile studies of ethanol. They assessed the studies’ assumptions and then reanalyzed each after correcting errors, inconsistencies and outdated information regarding the amount of energy used to grow corn and make ethanol, and the energy output in the form of fuel and corn byproducts.
Once these changes were made in the six studies, each yielded the same conclusion about energy: Producing ethanol from corn uses much less petroleum than producing gasoline. “It is better to use various inputs to grow corn and make ethanol and use that in your cars than it is to use the gasoline and fossil fuels directly,” said Kammen, who is co-director of the Berkeley Institute of the Environment and UC Berkeley’s Class of 1935 Distinguished Chair of Energy...
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