Media reports, American drought monitoring center 9, a week released the results of monitoring drought says, as the world corn and soy in the Midwestern United States of the main drought continues to expand, the United States is positive for decades most severe drought. Which has led to the international food prices make the world food security at risk.

Drought monitoring center 9 data shows, the United States in extreme and exceptional drought (climate, the two most serious level) the region than expand state last week nearly two percent to 24.12%. But the whole drought conditions to ease, by 9, is more than a week last week fell 1% to 78.14%.

The United Nations is located in Rome, Italy food and agriculture organization (FAO) 9, a monthly food prices in a report said, "the United States in the Midwest exceptional drought will lead to global climate food prices." According to global food prices has been to keep fluctuations paid close attention to the FAO data, corn prices have risen 23%.

The FAO says, the global food prices rose by 6% in July, but a February 2011 peak also has the disparity. FAO food price index including grain, oil response, meat, daily necessities and sugar, a basket of food price monthly change, the index to the global food prices and trend as the benchmark price.

"The United States is the world's leading corn, soybeans and wheat exporter, the United States to global food prices of drought is mainly rely on imports of grain of impact underdeveloped countries," the British charity oxfam 8 in one study results warned. "Food prices would allow millions of poor global disaster."