The methane concentration nearly doubled, for example, between the peak of the penultimate glacial period and the following interglacial period.

例如，在倒数第二个冰期的高峰和接下来的间冰期之间，甲烷浓度几乎增加了一倍。

youdao

Its peak, that is, there is the most carbon dioxide and methane gas, greenhouse gases in the atmosphere just after the beginning of the interglacial period.

它的峰值，就是在间冰期刚开始，大气中有最多的二氧化碳和甲烷气体，温室气体。

youdao

Now, the typical pattern for an interglacial period—and we've studied several—is that the concentration of carbon dioxide and methane gas actually reaches its peak.

现在，我们已经研究过几个间冰期的典型模式，其中一种是大气中二氧化碳和甲烷含量达到峰值的情况。

youdao

Consider that we are currently about 10, 000 years into a typical 12, 000 to 18, 000 year-long interglacial period.

FORBES: Gullible Warming: A Contrived Crisis That Is Too Good To Waste

We are near the end of an interglacial period, so its of no surprise to see the weather patterns changing with harsher winters.

FORBES: Climate Scientists Deepening Skepticism of Democracy

This has now been going on for 15, 000 to 18, 000 years, a life-friendly period known as an interglacial cycle.

FORBES: Magazine Article