Interesting piece in Principia-Scientific - the figures are astounding.
Out of curiosity I ran some numbers related to ethanol production, which turns food into fuel.
To produce one gallon of ethanol about 22 pounds of corn (1) needs to be sacrificed. 22 lbs of corn contains about 10,560 calories, (2) which are enough calories to feed one person for about four days. (3) Therefore the calories sacrificed to make 90 gallons of ethanol could sustain one person for an entire year. Since the US currently produces 10.6 billion gallons (4) of ethanol yearly, enough corn is being sacrificed each year for ethanol production in the United States to feed 117 million people. This is occurring at the same time that the United States Department of Agriculture is reporting that over 50,000,000 people living in the United States are in "food-insecure households" (5) because their families do not have sufficient funds to purchase adequate amounts of food.