WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY
Timelapse footage of strong winds blowing clouds above and air pollution below. The pollution forms a visible layer above the ground. The source of this pollution is the city of Denver, Colorado, USA. The strong northerly winds associated with a cold front are blowing the pollution back to its source. Filmed in Colorado, USA, in winter.
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