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dnt mckenzie china choking on growth_00011213.jpg
dnt mckenzie china choking on growth_00011213.jpg

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    Choking on pollution as China grows

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Choking on pollution as China grows

CNN's David McKenzie investigates China's "air-pocalypse."

Choking on pollution as China grows

CNN's David McKenzie investigates China's "air-pocalypse."