一氧化二氮在地平面时是稳定的，但在高层大气中则分解而形成某种化合物，从而引发化学反应而破坏臭氧层。
Nitrous oxide is stable at ground level but breaks down in the upper atmosphere to form compounds that trigger chemical reactions that destroy ozone.
虽然在地球大气层中的浓度甚微，一氧化二氮是一种很强的温室气体，而且正成为破坏平流层臭氧的主因。
Although present in minute concentrations in Earth's atmosphere, nitrous oxide is a highly potent greenhouse gas and is becoming a keyfactor in stratospheric ozone destruction.
在大气层中，一氧化二氮的浓度很低，但目前科学家认为，气候暖化有6%的原因是来自一氧化二氮，而它也是破坏平流层臭氧的祸首之一。
Nitrous oxide exists at low levels in the atmosphere, yet is thought to be responsible for 6 percent of climate warming and also contributes to stratospheric ozone destruction.
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