An improvement in Beijing’s air quality last year compared with 2014 may have had more to do with weather patterns than with a decline in emissions, environmental experts say.
環(huán)保專家表示,2015年北京的空氣質(zhì)量相對于2014年有所改善,可能更多是因?yàn)樘鞖饽J?,而非排放量下降?/p>
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