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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.

科學家們宣稱通過衛(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)星測量顯示南極上空氯濃度相比2005減少了20%，這是禁止CFCs的結果，這是第一年在南極的冬天測氯和臭氧的濃度。

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.

過去的研究采用臭氧空洞的大小的統(tǒng)計分析來證明臭氧層破壞在減少。這次研究是第一次直接測量臭氧空洞中的化學物組份來確定不但臭氧破壞作用在減少，而且確實是由于CFCs下降而導致的。