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6 JAN 2018：Scientists claim to have been able to show for the first time that ozone depletion is declining through direct observations of the ozone hole by a satellite instrument.

科學(xué)家們宣稱通過(guò)衛(wèi)星直接觀察臭氧洞，第一次能夠證明顯示臭氧洞的消耗在逐漸下降。

Measurements from NASA’s Aura satellite are said to show that the decline in chlorine, resulting from the ban on CFCs, has resulted in about 20% less ozone depletion during the Antarctic winter than there was in 2005 – the first year that measurements of chlorine and ozone during the Antarctic winter were made.

NASA的Aura衛(wèi)星測(cè)量顯示南極上空氯濃度相比2005減少了20%，這是禁止CFCs的結(jié)果，這是第一年在南極的冬天測(cè)氯和臭氧的濃度。

Past studies have used statistical analyses of changes in the ozone hole’s size to argue that ozone depletion is decreasing. This study is the first to use measurements of the chemical composition inside the ozone hole to confirm that not only is ozone depletion decreasing, but that the decrease is caused by the decline in CFCs.

過(guò)去的研究采用臭氧空洞的大小的統(tǒng)計(jì)分析來(lái)證明臭氧層破壞在減少。這次研究是第一次直接測(cè)量臭氧空洞中的化學(xué)物組份來(lái)確定不但臭氧破壞作用在減少，而且確實(shí)是由于CFCs下降而導(dǎo)致的。