Nature World: Increasingly harsh drought conditions in the US Midwest's "Corn Belt" may take a serious toll on corn and soybean yields over the next half-century, according to research published today in the journal Science.
Corn yields could drop by 15 to 30 percent, according to the paper's estimates, which could be devastating to a nation in which corn and soybeans account for approximately 40 and 35 percent of global production, respectively. "Yield increases are getting smaller in bad conditions," co-author...