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auger moving corn by auger

Unintended consequences of U.S. biofuel policy

Corn and soy for ethanol were grown on marginal land which could have emitted 
as much carbon dioxide as 34 coal-fired power plants

Clearing grasslands to make way for biofuels may seem counterproductive, but University of Wisconsin-Madison researchers show in a new study that crops, including the corn and soy commonly used for biofuels, expanded onto seven million acres of new land in the U.S. over a recent four-year period, replacing millions of acres of grasslands. The study