生物大灭绝

At least part of the cause of this extinction seems to have been huge volcanic eruptions that poured carbon dioxide into the atmosphere.

这次生物大灭绝事件的发生似乎至少部分是因为大量的火山喷发，火山喷发将大量的二氧化碳喷到大气中。

When a shower of massive meteors threatens an extinction level event on Earth, the world´s greatest minds devise a dangerous plan that will take the planet off its axis in order to avoid the impact.

当大规模的流星淋浴威胁着地球上的生物大灭绝级别的事件，是世界上最伟大的头脑想出一个危险的计划，将采取关闭星球的轴线，以避免撞击。

Most paleontologists suspect that abrupt changes in climate led to the mass extinctions.

大部分古生物学家都猜想是气候的突变导致了生物大灭绝。

According to the UN Environment Programme, the Earth is in the midst of a mass extinction of life.

据联合国环境计划署说，地球正处于生物大灭绝期间。