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> Biological life existed for 5 orders of magnitude longer than civilization without the sort of devastating consequence civilization has wrought. That is far
by AlanSE 9y ago
> Biological life existed for 5 orders of magnitude longer than civilization without the sort of devastating consequence civilization has wrought.
That is far from scientifically certain. Out of the extremely numerous extinction events in Earth's history, 5 of them have been extremely major, and we are probably going through the 6th right now. Probably. It's still too early to make statements about this. Will the geological record of the age of humans be more pronounced than the other events? Probably, but we can't claim that wearing a scientist hat. It's even more dubious to claim that this 6th event will have a more strongly negative effect on biodiversity. Things are happening so fast, and once all is said and done, humans may ultimately increase the diversity of Earth-derived life, because we have the ability to recombine existing species and even bring back functional extinct ones. It all depends on how we manage from here on out.