雾霾常驻地球，我们该如何自处？
Future Smog Looks More Persistent
Polluted air causes more than 2.6 million people to die prematurely each year. And when the smog builds up in Los Angeles or Beijing it sits there until a cleansing rain or a clearing wind freshens the air.
So what does the future hold for the number of days in which the air is not fair? According to some new computer model simulations, nothing good. The atmosphere is going to get more stagnant thanks to increasing levels of greenhouse gases and the heat they trap, leading to as many as 40 more bad air days annually around much of the globe.
That's according to a study in the journal Nature Climate Change.
India will be worst hit by such atmospheric stagnation, according to the computers. But...[full transcript]
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Horton, D., Skinner, C., Singh, D. et al. Occurrence and persistence of future atmospheric stagnation events. Nature Clim Change 4, 698–703 (2014).
DOI: 10.1038/nclimate2272
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