NASA Study Finds Carbon Emissions Could Dramatically Increase Risk of U.S. Megadroughts

NASA Study Finds Carbon Emissions Could Dramatically Increase Risk of U.S. Megadroughts

02/12/2015 11:00 AM EST

Droughts in the U.S. Southwest and Central Plains during the last half of this century could be drier and longer than drought conditions seen in those regions in the last 1,000 years, according to a new NASA study.