December 6, 2011 2:56 PM

Chinese suspect Beijing's air more polluted than reported

Sitting on a park bench in downtown Beijing on Tuesday afternoon, Wang Kuang paused to consider the air in front of his face. The sky in Beijing is often a murky color, something between gray and brown. But the past few days have been particularly bad: hundreds of flights canceled, sections of highway temporarily closed and entire buildings seemingly vanished from the horizon.

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