其中最短命的氢氟碳化合物，被发明取代氯氟烃，制冷剂可以稀释高层空气中的臭氧层，同时也是主要的升温剂。

The most troubling of the short-lived HFCs were invented to replace chlorofluorocarbons, refrigerants that were thinning the ozone layer in the upper atmosphere, and were also a major warming agent.

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别以为高层中的九到十一楼不错，那你大错了，这些楼层正好是扬灰层，脏空气到这个高度就会停顿，我们是不会告诉你们的。

Do not think of high-level floor, a good 9-11, you big mistake, and these floors is precisely Jan gray layer of dirty air to the height will come to a halt, we will not tell you.

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这些微粒没有到达大气的最高层，并且不可能长时期悬浮在空气中而影响全球气候。

Those particles haven't reached the upper levels of the atmosphere and are unlikely to hang around for a long time or affect the global climate.

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