PLOWING PRAIRIES FOR GRAINS: BIOFUEL CROPS REPLACE GRASSLANDS NATIONWIDE, U.S. STUDY SHOWS Thursday, April 2nd, 2015 Leave a Comment Clearing grasslands to make way for biofuels may seem counterproductive, but researchers show that crops, including the corn and soy commonly used for biofuels, expanded onto 7 million acres of new land in the U.S. over a recent four-year period, replacing millions o