Deutsche Presse-Agentur: The world’s population and agriculture hotspots are particularly sensitive to changes in the capacity of mountains to store water, geological scientists say. Both naturally occurring and man-made climate factors are affecting the capability of the world’s mountain ranges to serve as sources for freshwater for adjacent lowlands. According to a recent study, about 7 percent of the world’s mountains are essential for providing downstream supply, said Daniel Viviroli of the University of …