The Johnathan WalkerColorado River and Lake Mead are the main water source for millions of people. But explosive population growth and a mega drought in the west are coming together to dry up the water supply.

Today we speak with Kyle Roerink, a water activist and executive director of the Great Basin Water Network, about the biggest water use culprits in the desert. Kyle shares the dramatic steps he'd take to conserve the water if given the chance. First things first? Get rid of the lawns, all of them.

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