Sandstorms across China prompt health warnings

Associated Press: Sandstorms whipping across China shrouded cities in an unhealthy cloud of sand and grit Monday, with winds carrying the pollution outside the mainland as far as Hong Kong and Taiwan. It was the latest sign of the effects of desertification: Overgrazing, deforestation, urban sprawl and drought have expanded deserts in the country's north and west. The shifting sands have gradually encroached onto populated areas and worsened sandstorms that strike cities, particularly in the ......

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