Buildings are pictured amid heavy haze and smog in Beijing, October 22, 2011. [Photo/Agencies]

Youngsters hold candles during a rally to mourn the death of Yue Yue in North China's Tianjin Municipality, Oct 22, 2011. The participants wore T-shirts with Chinese characters saying "Say No to Apathy." Yue Yue, the 2-year-old girl who was run over by two vehicles last week and ignored by passers-by in Foshan, Guangdong province, died in hospital. Her death has triggered nationwide sympathy and reflection on China's social trust system amid rapid urbanization. [Photo/CFP]