re: EPA wants Alaskans to stop burning wood for warmth

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At about minus 20 Fahrenheit — a fairly regular occurrence here in winter — smoke that goes up comes right back down, to linger at ground level and, therefore, lung level.

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For six consecutive days in mid-December, the air here was declared “unhealthy,” for high particulate content

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...the Clean Air Act, passed by Congress in 1970, requires a standard of breathable air for all Americans. The E.P.A. was given the job of enforcing that standard.

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