The U.S. Agriculture Department cuts its estimate of corn crop yield per acre in the U.S. by 15.5%, as a result of the severe drought in 2012. Agriculture Secretary Vilsack, says the situation for farmers is better this time than during the last drought in 1988. Now 85% of farmers have crop insurance compared to 25% in 1988. The Agriculture Department estimate is for a 3-4% increase in prices in 2013. Capital Economics says the impact on GDP in the U.S. will be about 0.1%. Because 40% of the corn crop goes into ethanol production there is renewed debate about the 2005/2007 Renewable Fuel Standard, which requires 13.2 billion gallons of corn based biofuel be made in 2012. Worldwide the bad weather conditions in Brazil, India and Russia are worsening the outlook for food supplies. The U.N. Food and Agriculture Organization says global food prices increased by 6% in July 2012, with corn prices up 23%.