After studying how Namib beetles collect dew to survive in the desert, Australian university student Edward Linacre in November 2011 introduces a design for the “Airdrop,” a device powered by sunlight that condenses water even from extremely dry air, which can then be used to irrigate crops and alleviate drought conditions.
http://www.treehugger.com/clean-technology/airdrop-design-pulls-water-air-to-irrigate-deserts.html
http://www.jamesdysonaward.org/