NASA confirms 2500 Sq Mile toxic cloud over SW USA states

http://www.desmogblog.com/2014/10/17/nasa-confirms-2500-square-mile-cloud-methane-floating-over-american-southwest

When NASA researchers first saw data indicating a massive cloud of methane floating over the American Southwest, they found it so incredible that they dismissed it as an instrument error.

But as they continued analyzing data from the European Space Agency’s Scanning Imaging Absorption Spectrometer for Atmospheric Chartography instrument from 2002 to 2012, the “atmospheric hot spot” kept appearing.

The team at NASA was finally able to take a closer look, and have now concluded that there is in fact a 2,500-square-mile cloud of methane—roughly the size of Delaware—floating over the Four Corners region, where the borders of Arizona, Colorado, New Mexico, and Utah all intersect.