> but an acceleration of a process that has been happening for several million years That's exactly the main issue, isn't it? A change happening over millenia/

> but an acceleration of a process that has been happening for several million years That's exactly the main issue, isn't it? A change happening over millenia/millions of years gives enough time and slack for life to adapt, an accelerated change that happens in the course of centuries will just erase many species that can't reconfigure their metabolism through evolution. Of course that life finds a way and new species adapted to a new environment will become more prevalent over time, the issue is exactly that we accelerated it to a pace where most things aren't able to cope. We depend on those things as well to survive.