Now, the typical pattern for an interglacial period—and we've studied several—is that the concentrationofcarbon 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。
2
The concentrationofcarbon dioxide in the atmosphere is rising and climate change is occurring, both due to human actions...
大气中的二氧化碳浓度正在上升，气候变化正在发生，这些都缘于人类活动…。
3
As for WASP-12b, however, there was more than twice the concentrationofcarbon as usual and almost 100 times more methane than expected.