By 2025, two-thirds of the world may be "water-stressed" according to the U.N. Global attention is on better ways to use it and preserve clean water. Two locations are doing a good job of that.
Las Vegas gets only four inches of rain per year. Remarkably, "The region’s water use declined by 34 billion gallons, or 30 percent, between 2002 and 2015, despite a population gain of more than 560,000 people2."
Israel is another example of water use innovation. Despite having a desert climate, their methods have resulted in abundant usable water.
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