"Downpours and heat waves caused by climate change could disrupt food supplies from the fields to the supermarkets, raising the risk of more price spikes such as this year's leap triggered by drought in the United States," Reuters reports. "Food security experts working on a chapter in a U.N. overview of global warming due in 2014 said governments should take more account of how extremes of heat, droughts or floods could affect food supplies from seeds to consumers' plates," the news service writes (Doyle, 8/15). "The U.N. and global leaders have paid particular attention in recent weeks to U.S. biofuels policy as drought ravages corn supplies," The Hill's "E2 Wire" blog notes, adding, "They say the country needs to free up more of its corn for food to combat rising prices that heavily affect poor nations" (Colman, 8/16).