Pollution in China
![Haze blankets the National Stadium, also known as the Bird's Nest, as seen from inside the Olympic Green area during the Olympics, August 7, 2008.](https://gdb.voanews.com/187795EF-5007-40DB-A45C-BD402406F3F8_w1024_q10_s.jpg)
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Haze blankets the National Stadium, also known as the Bird's Nest, as seen from inside the Olympic Green area during the Olympics, August 7, 2008.
![A coal-burning power station at night in Xiangfan, Hubei province, September 15, 2009.](https://gdb.voanews.com/422F0D85-7FF0-4BB1-99DF-7CEA5F4B46F6_w1024_q10_s.jpg)
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A coal-burning power station at night in Xiangfan, Hubei province, September 15, 2009.
![Paramilitary policemen practice drills inside the Forbidden City amid haze in central Beijing, December 4, 2011.](https://gdb.voanews.com/01BE6F3B-00C9-4A0C-B0B2-B38986F75FA9_w1024_q10_s.jpg)
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Paramilitary policemen practice drills inside the Forbidden City amid haze in central Beijing, December 4, 2011.
![Buildings in Beijing are pictured on an evening with heavy haze and smog, October 28, 2011.](https://gdb.voanews.com/E024896D-E1CE-4DF4-9A92-3750C810A3E7_w1024_q10_s.jpg)
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Buildings in Beijing are pictured on an evening with heavy haze and smog, October 28, 2011.