In the meantime, the amount of CO2 in the air is rapidly approaching the limits proposed by the Intergovernmental Panel on Climate Change (IPCC).

与此同时，空气中的二氧化碳含量正迅速接近政府间气候变化专门委员会（IPCC）提出的上限。

youdao

If you think you can change your life in a clever way, the way an advertiser can get you to buy an air freshener, you're probably wrong.

如果你认为你可以用一种聪明的方式改变你的生活，就像广告商可以让你买空气清新剂那样，你可能就错了。

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The pain that penetrates each joint is brought about by a change in air pressure, such as the change that proceeds a storm.

穿透每个关节的疼痛是由气压的变化引起的，例如暴风雨的变化。

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The shape of a snow crystal may change from one form to another as the crystal passes through levels of air with different temperatures.

VOA: special.2010.01.05

Services like an air filter change are easy to do yourself.

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Plagued by the chytrid fungus -- which has thrived as water and air temperatures change -- the Panamanian golden frog is all but extinct in the wild.

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"There's definitely an air of change, " he said.

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