Study: Warming makes US West megadrought worst in modern age
By SETH BORENSTEIN, AP Science Writer KENSINGTON, Maryland (AP) — A two-decade-long dry spell that has parched much of the western United States is turning into one of the deepest megadroughts in the region in more than 1,200 years, a new study found. And about half of this historic drought can be blamed on man-made global warming, according to a study in Thursday’s journal Science. Scientists looked