Wind-powered device can produce 11 gallons per day of clean drinking water from the air : TreeHugger:
"WaterSeer is a low-tech, low-cost atmospheric water condenser that could help create water self-sufficiency in communities around the world.
A new device developed by VICI-Labs, in collaboration with UC Berkeley and the National Peace Corps Association, aims to provide a sustainable source of clean safe water for the millions without a reliable water supply.
...The WaterSeer is relatively simple device, designed to be operated without an external power input, and without the need for costly chemicals or maintenance, that can 'pull' moisture from thin air and condense it into water using the temperature difference between the above-ground turbine and the collection chamber installed six feet underground.
The potable water can then be delivered to the surface for use via a simple pump and hose, and the device is said to be able to produce up to 11 gallons per day, even in arid regions.
And the best part?
The WaterSeer will be priced at just $134."