Technology already exists that can produce water out of thin air by cooling it and condensing the water vapor in it. This is mainly being used for irrigation or industrial purposes, but now it may become something that is available for household use in two years time. That’s because a startup has created a renewed version of the technology that is cheaper and doesn’t need electricity. All it uses is water-absorbing material that sucks vapor from the air and solar thermal energy to convert it into water.