This is a fourth series form the Washington Post articles on food crisis.
...Across the country, ethanol plants are swallowing more and more of the nation's corn crop. This year, about a quarter of U.S. corn will go to feeding ethanol plants instead of poultry or livestock.
...Rising food prices have given Congress and the White House a sudden case of legislative indigestion. In 2005, the Republican-led Congress and President Bush backed a bill that required widespread ethanol use in motor fuels. Just four months ago, the Democratic-led Congress passed and Bush signed energy legislation that boosted the mandate for minimum corn-based ethanol use to 15 billion gallons, about 10 percent of motor fuel, by 2015. It was one of the most popular parts of the bill, appealing to farm-state lawmakers and to those worried about energy security and eager to substitute a home-grown energy source for a portion of U.S. petroleum imports. To help things along, motor-fuel blenders receive a 51 cent subsidy for every gallon of corn-based ethanol used through the end of 2010; this year, production could reach 8 billion gallons.
..No place demonstrates the competing demands on corn better than Iowa, one of the two biggest corn-exporting states. Iowa is home to 28 ethanol plants, which consume more than a quarter of its corn crop; two dozen others are under construction or in planning stages.