Global Drought Threatens Water, Food Supplies. Get Used to It.

Dry cracked earth on the banks of Shasta Lake on Aug. 30, 2014, in Lakehead, California. As the severe drought in California continues for a third straight year, water levels in the state's lakes and reservoirs is reaching historic lows. Shasta Lake is currently near 30 percent of its total capacity, the lowest it has been since 1977. Justin Sullivan / Getty Images

Western Drought Literally Changing the Landscape 3:01