消失的森林覆盖会加热地球，因为树木活着时会吸收CO2，当燃烧或被砍后，这些温室气体被重新释放到大气中。

Lost forest cover heats the planet, because trees absorb CO2 while they're alive -and when they're burned or cut down, the greenhouse gas is released back into the atmosphere.

youdao

消失的森林覆盖会加热地球，因为树木活着时会吸收CO2，当燃烧或被砍后，这些温室气体被重新释放到大气中。

Lost forest cover heats the planet, because trees absorb CO2 while they're alive - and when they're burned or cut down, the greenhouse gas is released back into the atmosphere.

youdao

大气中的甲烷有多种来源，包括化石燃料燃烧和农牧业活动，比如奶牛在进食后就会排放这种气体∶-。

It comes from a variety of sources, including fossil fuel production and even farming. Cows give off methane, ya know, after they eat.

youdao