Li Keqiang Calls for Patience on China Efforts to Curb Smog

Li Keqiang Calls for Patience on China Efforts to Curb Smog

Wang Zhao/AFP/Getty Images

Two Chinese men walk along a railway line in Beijing on Jan. 12, 2013. Pollution levels eased in Beijing yesterday after the government expanded efforts to curb emissions by shutting factories and ordering official cars off roads.