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Study critiques corn-for-ethanol's carbon footprint
Date:3/2/2009

onomic terms with a standard financial accounting tool called "net present value."

For now, setting aside acreage and letting it return to native vegetation was rated the best way to reduce greenhouse gas emissions, outweighing the results of corn-ethanol production over the first 48 years. However, "once commercially available, cellulosic ethanol produced in set-aside grasslands should provide the most efficient tool for greenhouse gas reduction of any scenario we examined," the report added.

The worst strategy for reducing carbon dioxide emissions is to plant corn-for-ethanol on land that was previously designated as set aside -- a practice included in current federal efforts to ramp up biofuel production, the study found. "You will lose a lot of soil carbon, which will escape into the atmosphere as CO2," said Pieiro.


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Contact: Monte Basgall
monte.basgall@duke.edu
919-681-8057
Duke University
Source:Eurekalert

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