Associated Press: A recent, 14-year dry spell in the Middle East was the worst drought in the past 900 years, according to a new NASA study released this week. NASA's researchers examined records of rings of trees in several Mediterranean countries to determine patterns of dry and wet years across a span of 900 years. They concluded that the years from 1998 to 2012 were drier than any other period, and that the drought was likely caused by humans. The study's lead author Ben Cook said the range of extreme weather...