feed some 570 million people increasing fuel economy http://necsi.edu/research/social/foodprices/foodforfuel/ feed some 570 million people http://necsi.edu/research/social/foodprices/foodforfuel/ http://necsi.edu/research/social/foodprices/foodforfuel/ a paper in their project on ethanol use for fuel feed some 570 million people feed some 570 million people feed some 570 million people food prices have soared in their project on ethanol use for fuel impact on food prices research