Scientists agree that the methane level must be lowered in Lake Kivu.

科学家赞同，必须降低基伍湖的甲烷水平。

All our glaciers would melt, and poison our atmosphere with elevated methane levels.

所有的冰川会融化，浓度攀升的甲烷会污染大气层。

A clearer understanding of methane levels over time " could help scientists determine where they're located on Mars, " NASA said.

美国宇航局表示，更清楚地了解甲烷含量随着时间推移的改变" 可以帮助科学家确定甲烷分布在火星上的位置" 。

The spike at the end of the last ice age saw methane levels rise from 400 parts per billion to 700ppb.

上一个冰河时代末期，甲烷浓度从 400 ppb 上升到 700ppb。

Another top-down one works backwards from the methane levels in the air and tries to calculate emissions on the ground consistent with it.

另一种自上而下的方法从空气中的甲烷水平开始向后推算，并尝试计算与其一致的地面排放量。

In 2019, it was reported that methane levels reached their record high, approximately two and a half times above what they were in pre-industrial times.

据报道，2019 年甲烷含量达到历史新高，比工业化前水平高出约两倍半。