There would be nowhere near as many people doing all sorts of other things to the planet if humans had not sped the nitrogen cycle up.

如果人类没有加速氮循环的速度，那么就远不会有众多人对地球上做其他的各种事情。

youdao

It is also worth noting that unlike many of humanity's other effects on the planet, the remaking of the nitrogen cycle was deliberate.

还值得注意的是，与地球上其他人类的影响不同，对于氮循环的再改造是故意的。

youdao

No Dickensian insights are necessary to appreciate the scale of human intervention in the nitrogen cycle.

在理解人类对氮循环的干扰力度方面，并非是杞人忧天。

youdao

The fact that people have used industrial chemistry to short-circuit the nitrogen cycle, by making fertilisers out of nitrogen in the air at a rate which greatly exceeds what natural systems can manage, has real environmental effects.

ECONOMIST: The global environment

Eating meat is the dominant driver of the nitrogen cycle in Europe.

BBC: Nitrogen pollution 'costs EU up to ?280bn a year'

It points out, though, that there is little evidence things like the behaviour of the nitrogen cycle or the phosphate cycle in the Holocene were particularly well-suited to humans.

ECONOMIST: The global environment