Beijing is one of three cities being asked to reduce levels of the tiny airborne pollutants that are a major cause of smog. Photo: EPA
China unveils tough measures to combat air pollution
The world's largest carbon emitter promises to close dirty factories and cut reliance on coal in an effort to improve environment by 2017
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China pollution
Beijing is one of three cities being asked to reduce levels of the tiny airborne pollutants that are a major cause of smog. Photo: EPA