[lostworld]

Keep in mind that we are in an interglacial period, between ice ages. And no one knows when the next ice age will begin.

[linmob]

I think you massively underestimate the current situation. See “Past concentration“ https://en.m.wikipedia.org/wiki/Carbon_dioxide_in_Earth's_at... I think it’s save to assume that the cycle of hotter and cooler periods may has already been severely altered. Sure, no one knows, but...