9781422285558

INTRODUCTION W e brush our teeth with it. We drink it. We use it to wash our cars, our clothes, and ourselves. We cook with it, swim in it, fish in it, wade in it. We need it to grow crops and flush our toilets. Without it, our bodies would wither. It comes out of faucets and

The impact of drought can be seen in this 2014 satellite image of California’s Indian Valley Reservoir. In a non-drought year, there would be ten times as much freshwater, covering twice the area shown here. (Planet Labs, Inc./Wikimedia)

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