CHINA-ENVIRONMENT-POLLUTION

A Chinese taxi driver (R) watches as a man puts on a face mask before leaving the cab in the central business district during heavy air pollution in Beijing on January 30, 2013. Beijing urged residents to stay indoors as emergency measures were rolled out aimed at countering a heavy cloud of smog blanketing the Chinese capital and swathes of the country. The municipal government said children, the elderly and people sensitive to poor air quality should remain indoors, after authorities announced the closure of 103 factories and ordered 30 percent of official cars off the road. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP via Getty Images)