Tuesday, April 15, 2014

China's air pollution leading to more erratic climate for US, say scientists

http://www.theguardian.com/world/2014/apr/15/china-air-pollution-pacific-climate-us-national-academy-sciences


Jonathan Kaiman in Beijing theguardian.com
Tuesday 15 April 2014

China's air pollution could be intensifying storms over the Pacific Ocean and altering weather patterns in North America, according to scientists in the US. A team from Texas, California and Washington state has found that pollution from Asia, much of it arising in China, is leading to more intense cyclones, increased precipitation and more warm air in the mid-Pacific moving towards the north pole.

According to the team's findings, which were released on Monday in the Proceedings of the National Academy of Sciences, these changes could ultimately contribute to erratic weather in the US.

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Mid-latitude storms develop off Asia and they track across the Pacific, coming in to the west coast of the US," said Ellie Highwood, a climate physicist at the University of Reading. "The particles in this model are affecting how strong those storms are, how dense the clouds are, and how much rainfall comes out of those storms."

China is fighting to contain the environmental fallout from 30 years of unchecked growth. Of 74 Chinese cities monitored by the central government 71 failed to meet air quality standards, the environmental ministry said last month.

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