This video segment adapted from FRONTLINE: Heat explains the important role glaciers play in storing and distributing freshwater in many parts of the world. Because of global warming, glaciers are melting more rapidly than normal. This is especially significant for Himalayan and Tibetan glaciers, which feed several major rivers that flow through China and the Indian subcontinent, and sustain agriculture, livestock, and the human population. As glaciers disappear, consequences of water scarcity will likely include drought and political instability between nations.
This media asset was adapted from FRONTLINE: "HEAT".