氢氯氟化碳以替换破坏臭氧层物质的形式被引进进来，尽管氢氯氟化碳不会破坏臭氧层，但是它却是强有力的全球变暖催化剂，被当成“超级”温室气体。

Introduced as replacements for ozone depleting substances, HFCs do not damage the ozone layer but are potent global warming agents and considered 'super' greenhouse gases.

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事实上，目前几乎每辆美国汽车和卡车都采用了氢氯氟化碳（hydrofluorocarbon）制冷剂。 与全球变暖潜力值为1400的HFC-1234yf款相比，HFC-134a 款采用的新型制冷剂全球变暖潜力值仅有4分之差。

The HFC (hydrofluorocarbon) refrigerant currently used in virtually every American model car and truck, HFC-134a, has a GWP of 1, 400 compared to the new refrigerant's (HFC-1234yf) GWP of just four.

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