Last October, a UC Berkeley team headed down to the Arizona desert, plopped their newest prototype water harvester into the backyard of a tract home and started sucking water out of the air without any power other than sunlight.The successful field test of their larger, next-generation harvester proved what the team had predicted earlier in 2019: that the water harvester can extract drinkable water every day/night cycle at very low humidity and at low cost, making it ideal for people living in arid, water-starved areas of the world. Credit: UC Berkeley
