waterharvesting
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Researchers develop device that extracts water from desert air
Researchers at MIT and UC Berkeley have developed and now tested a device that can extract water out of the air even in the driest of climates. The team proposed the device in a Science article last year and now they've improved the design and tried it out in Tempe, Arizona. While there are a few ways to pull water out of the air, most come with significant limitations. They usually require humidities upwards of 50 percent and some need a lot of energy input to make them work. The research team's latest design, however, works passively, without the need for energy input, and can work in places with humidity as low as 10 percent.
