Megadroughts coming to the American West

Says NASA:

While the recent water shortage in California and other states made headline for months, NASA scientists believe that drought will be viewed as comparatively minor in the not-so-distant future.

Based on NASA’s climate models, large parts of North America could begin to experience megadroughts — severe climate events than can last decades — before the turn of the century. NASA believes that, without immediate and aggressive action to curb greenhouse gases, this frightening scenario will not just be a mere possibility. It will be a near certainty.