Washington Post: Exceptional drought, the most severe category, afflicts over 58 percent of California. The current drought may be a mere sneak preview of longer lasting and more devastating drought in the coming century, according to a study published in the Journal of Climate.
The study -- by Cornell University, University of Arizona and U.S. Geological Survey researchers -- examines the likelihood of so-called "megadroughts" and how they may change as the climate warms. Megadroughts are distinguished by their...