Researchers at the Fraunhofer Institute in Stuttgart say they've invented a novel way to turn air moisture into drinking water, thus helping solve the dire water shortages that face much of the world.
Here's how it works. First ...READ»
It's been 4,500 years since the Mesopotamian cities of Lagash and
Umma battled over irrigation rights. That was the world's first -- and
so far only -- full-fledged water war. But UN secretary-general Ban
Ki-moon warned last year ...READ»
