At 330 miles above the Arctic Circle, life has never been easy for those brave enough to call Barrow home. The population currently hovers around 5,000 and about half of the residents are native Inupiat Eskimo, indigenous people who have…

The Arctic is a receptacle of the planet's air pollutants -- from forest fires to human-produced carbon dioxide emissions -- and a coordinated international effort is geared toward learning more about pollutants' effects at the top of the globe.

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