Tibet: Scientists warn of rapid climate change at roof of the world

Lying 4700 meters above sea level on the Tibetan plateau is Namsto Lake. It is held as holy by the regions Tibetan population and every year thousands of pilgrims walk around its shores. As one of the largest lakes on the plateau, Namsto is fed partly by run off from the regions glaciers, which also acts as a store of water for the surrounding grasslands, experts have said. Nov 25, 2015