Buildings are shrouded in sand and dust in Turpan in the Xinjiang Uygur autonomous region, April 28, 2011. A cold front whipped up sandstorms in Turpan city, lowering visibility to less than 30 meters. [Xinhua]
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![Buildings are shrouded in sand and dust in Turpan in the Xinjiang Uygur autonomous region, April 28, 2011. A cold front whipped up sandstorms in Turpan city, lowering visibility to less than 30 meters. [Xinhua]](http://images.china.cn/attachement/jpg/site1007/20110428/0014222d98500f23720a29.jpg "Buildings are shrouded in sand and dust in Turpan in the Xinjiang Uygur autonomous region, April 28, 2011. A cold front whipped up sandstorms in Turpan city, lowering visibility to less than 30 meters. [Xinhua]")
