Will clean air goals hurt Chinese economy?

Japanese tourists take photos from the historic Jingshan Park as smog continues to shroud Beijing on January 31, 2013.  Doctors in Beijing said on January 31 that hospital admissions for respiratory complaints rose in recent days during the latest bout of air pollution to cover northern China.          AFP PHOTO/Mark RALSTON        (Photo credit should read MARK RALSTON/AFP/Getty Images)

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    Will clean air goals hurt Chinese economy?

CNN's Andrew Stevens speaks to Greenpeace's Huang Wei about China's ambitious anti-pollution goals.