EarthSky: The U.S. Southwest and Central Plains are at high risk for a megadrought later this century if greenhouse gas concentrations continue to rise, says a new study.
Megadroughts are persistent droughts that last for a decade or longer--they can be devastating to both natural ecosystems and human societies. Now, a new study has found that the southwestern and central plains regions of the United States are at high risk for a megadrought in the latter half of the 21st century if greenhouse gas concentrations...