Cleaning up one of America's most polluted cities

Steel helped transform Pittsburgh into a powerhouse in the 20th century, but once the industry collapsed, it left behind a city forever changed. The dense soot cloud that hovered overhead for...

Steel helped transform Pittsburgh into a powerhouse in the 20th century, but once the industry collapsed, it left behind a city forever changed. The dense soot cloud that hovered overhead for decades is finally breaking up, but some of the nation's worst levels of air pollution still remain.

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Source: http://www.theverge.com/2013/10/16/4844192/detours-pittsburgh-air-pollution-video
Category: steelers   mrsa   calvin johnson   danity kane   Jamaal Charles