A recent study by scientists at Michigan State University looked at how the storage of terrestrial water will change by the end of the century. Terrestrial water storage includes not just lakes and streams, but also water stored in soils and groundwater. The study showed that many areas of the globe are expected to lose significant water storage by 2100, including all of the Southeast. That will have implications for the frequency of drought in the future as well as the availability of water for drinking and irrigation. You can read more at Yahoo News here.