A child on a school field trip throws a handful of snow into the moat surrounding the Forbidden City in central Beijing on November 10, 2009 after snowfall blanketed the capital the night before. On November 4 government scientists in Beijing were pilloried for inducing a heavy snow fall that jammed traffic, delayed air travel and dropped more than 16 million tonnes of snow on the Chinese capital. Getty Images logo Getty Images 1 week ago

A child on a school field trip throws a handful of snow into the moat surrounding the Forbidden City in central Beijing on November 10, 2009 after snowfall blanketed the capital the night before. On November 4 government scientists in Beijing were pilloried for inducing a heavy snow fall that jammed traffic, delayed air travel and dropped more than 16 million tonnes of snow on the Chinese capital.