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1·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。

2·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。

3·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。

4·We do not know whether we live in a postglacial period or an interglacial period.

我们不知道自己是生活在后冰川期还是生活于间冰期。

5·Kopp's team reconstructed the sea levels in the last interglacial period, around 125, 000 years ago.

科普的研究小组重构了约12.5万年以前，最后一次间冰期时期的海平面。

6·Until now, the best high-resolution records of climate variability from the Northern Hemisphere go back only to the last interglacial period, less than 125,000 years ago.

现今有关北半球气候变化的最完整且分辨率最高的记录，只能追溯到上个间冰期，历史不及12.5万年。

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

现在已持续了15000到18000年，这个有利于生命的阶段也称之为间冰周期。