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Brown Cloud

(credit: CBS)

Fighting Denver’s Brown Cloud Could Mean ‘Action Days’ This Winter

Brown clouds are common along the Front Range on very cold days with little wind to mix the atmosphere.

11/02/2014

(credit: CBS)

Some Colorado Counties Get Failing Grade When It Comes To Ozone

A new report released from the American Lung Association shows there is still room for improvement of air quality across Colorado.

04/30/2014