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Last updated on April 23, 2014 at 15:59 EDT

International News Archive - November 15, 2012

New Findings On A Resource Becoming More Precious Than Gold

Visualize a dusty place where stream beds are sand and lakes are flats of dried mud. Are we on Mars? In fact, we're on arid parts of Earth, a planet where water covers some 70 percent of the surface.

Airborne Particles Smuggle Pollutants Worldwide

Symbiotic relationship between pollutants and airborne particles explains how city pollution ends up in Arctic