I have seen articles within the last year which express concern that a shift into a super-interglacial, which was accompanied by a 6-8C increase in the average ambient, even over a period of several centuries, could exceed the rate at which local flora could successfully adapt.  There would, of course, be survivors, but these would not be appropriate to much of the local fauna, down to and beyond insectivora.  Unfortunately I do not have links or even hard copy, at least at hand.

If sanity be culturally normative, then by the norms of this culture I claim insanity.