You can't complain if you're monitoring the methane.

如果你在监测甲烷，你不能抱怨。

The microbes break down the methane as fuel.

微生物将甲烷分解作为燃料。

Those dosed samples produced no methane.

这类样本不能产生甲烷。

The biggest environmental problem for cattle, though, is the heat-trapping gas methane.

，对牛来说，最大环境问题是吸热型气体——甲烷。

And it also discovered traces of methane.

是，火星地表有有机物。

In turn, the rising temperature causes more permafrost to thaw, releasing more methane.

反过来，气温上升导致更多永久冻，从释放出更多甲烷。

Besides hydrogen and helium, the air there is about 2% methane.

除了氢和氦，其空气中还有2%甲烷。

Speaking of methane, plenty of things emit methane.

说到甲烷，很多东西都会释放甲烷。

Human-induced methane is defined as methane brought about by our human behaviors and activities.

人为导致甲烷就是人类行为与活动所产生甲烷。

But the samples in which microbes were allowed to survive did put out methane.

可以让微生物生存样本会释放出甲烷。

A 30 percent decrease in methane emissions.

甲烷排放减少30%。

280,000 metric tons of methane each year.

每年排放超过 28 万吨甲烷。

Even dunes of frozen methane on Pluto.

甚至还有冥王星上冻结甲烷沙丘。

Massive pockets of methane gas would explode.

大量甲烷气体会发生爆炸。

These include carbon dioxide, methane and nitrous oxide.

其中包括二氧碳、甲烷和一氧二氮。

For example, LHS 475 b cannot have a thick atmosphere that is mostly methane, Lustig-Yaeger said.

例如，LHS 475b不可能有以甲烷为主厚大气层，拉丝汀·一格说。

Methane gas somehow accumulates in the permafrost of Siberia.

甲烷气体以某种方式积聚在西伯利亚永久冻层中。

And methane emissions aren't the only hazard.

甲烷排放并不是唯一危害。

Okay, wait, but what about methane?

好吧，等等，但是甲烷呢？

For example, take methanogens, the microbes that make methane.

比如产烷生物，一种制造甲烷微生物。