科学家们一致认为全球变暖对我们的星球构成了严重威胁。

Scientists agree that ___global ___warming is a serious threat to our planet.

全球变暖的一个主要影响是极地冰盖的融化。

One major effect of ___global ___warming is the melting of polar ice caps.

世界各国政府正在制定政策以应对全球变暖。

Governments worldwide are working on policies to combat ___global ___warming.