Jan 312011
 
Excel Graph showing the Carbon Intensity of Bi...
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Biofuels reduce greenhouse-gas emissions in comparison to fossil fuels. Smithsonian researchers highlight a new study that factors in environmental costs of biofuel production.

Corn, soy and sugarcane come up short. The authors urge governments to be far more selective about which biofuels they support, as not all are more environmentally friendly than fossil fuels.

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