Scientists are creating low-cost devices that need neither electricity nor high humidity to pull drinking water straight from the air.
One device, created at MIT and University of California, Berkeley, uses heat from natural sunlight to activate porous crystals that soak up air moisture in desert-like humidity levels. The inventors hope to customize the technology for different climates.
A Scottsdale, Arizona start-up, Zero Mass Water, developed a solar-powered system that pushes air through a special material and then turns absorbed condensation into fluid. The system is being used in several countries and may soon help hydrate Syrian refugees in Lebanon.
Source: Scientific American