GREEN
09/08/2009 06:12 pm ET Updated May 25, 2011

Biofuels Vs. Bioelectricity

Running vehicles on biofuels such as ethanol reduces CO2 emissions and offers a way to lessen the world's reliance on oil. While this sounds great from an environmental perspective, the energy required to produce the biofuel and the land clearing for crops that can result means biofuels aren't necessarily the environmentally friendly solution they initially appear to be. Recognizing this, researchers have analyzed the best way to maximize the "miles per acre" from biomass and discovered that the far more efficient option is to convert the biomass to electricity, rather than ethanol. Another tick for the electric car.

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