众所周知氯氟烃会破坏臭氧层。

It is widely known that CFCs can damage the ozone layer.

氢氯氟烃和氢氟烃被认为是全球变暖的原因。

Hydrochlorofluorocarbons and hydrofluorocarbons are regarded as contributors to global warming.

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.