Nature World: Due to global warming, a megadrought is likely in store for the southwestern United States in the future, researchers say.
According to a new study, the chances that this region will experience a decade-long drought is at least 50 percent, and the odds of a "megadrought" - one that lasts over 30 years - ranges from 20 to 50 percent over the next century.
"For the southwestern US, I'm not optimistic about avoiding real megadroughts," lead author Toby Ault of Cornell University said in a statement....