Lake Mead, Water Supply for Las Vegas and LA, Could Dry Up by 2021

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Lake Mead, a key source of water for millions of people in the southwestern United States, could go dry by 2021, a new study finds.

The study concludes that natural forces such as evaporation, changes wrought by global warming and the increasing demand from the booming Southwest population are creating a deficit from this part of the Colorado River system.

Along with Lake Powell, which is on the border between Arizona and Utah, Lake Mead supplies roughly 8 million people in the cities of Las Vegas, Los Angeles, and San Diego, among others, with critical water supplies.

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