Topic: air pollution
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Sequoia National Park Is Stuck in Pollution Hell
The fabled home of California's redwoods has the worst air quality of any national park and is full of mysteriously crippled wildlife.
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One Month in Beijing = Smoking 5 Cigarettes
The city's notorious pollution is put into perspective by a local physician.
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Copenhagen's Trash Incinerator Ski Slope Is Dead
The ambitious plan was scuttled after officials realized it would increase carbon dioxide emissions by 30 percent a year
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Reducing Air Pollution With ... Glue?
Adhesive sprayed onto London streets aims at cutting particulate levels
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Do Doctors Avoid City Smog More Than Others?
In Los Angeles, at least, the answer is no
