The Coast Guard closes a stretch of the swollen Mississippi River. MEMPHIS — The Coast Guard closed a stretch of the swollen Mississippi to barge traffic Friday in a move that could cause a backup along the mighty river, while police farther south in Memphis went door to door, warning thousands of p
Washington, D.C. - Climate change already is cutting into grain yields, and likely increasing food prices, in most of the world other than the United States, scientists say.While U.S. farmers have enjoyed a relatively favorable climate, yield gains in other regions over the past three decades have b