A team of Berkeley scientists have developed a machine that extracts drinkable water from air, and they’ve successfully tested it in Arizona’s dry climate. Just a kilogram (or about two pounds) of machinery can extract six ounces (or about half a soda can’s worth) of water per day. Phys.org has the story:
Last October, a University of California, 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 2017: 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.