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A comment on London's Thames, once biologically dead, has been coming back to life. Parent comment

Re:London's Thames, once biologically dead, has been coming ... by p1esk on Friday November 12, 2021 @08:22AM (#29199005)
When your entire population shits into the main river that does a pretty good job of killing biodiversity

I’d expect the opposite.

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Re:London's Thames, once biologically dead, has been coming ... by kergonath on Friday November 12, 2021 @10:02AM (#29199890)
There is an optimum in the middle. Too much organic matter is harmful, as bacteria decomposing it use the oxygen and emit nitrites.
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Re:London's Thames, once biologically dead, has been coming ... by quesera on Friday November 12, 2021 @11:42AM (#29201277)
Fertilizer runoff creates a dead zone at the Mississippi River delta.
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