I'd urge caution in interpreting the fossil record. The PETM happened over
millennia, not decades. Whilst that suggests that the climate system is
more stable than feared by some, it also suggests that we can expect some
dramatic and potentially novel effects from AGW. My guess is that
ecosystems w
In terms of Ken's first comment, perhaps this is a bit aside the
point, but
I'm not sure it's just rate or rate plus amount of change:
if you look at the (admittedly awfully rough) Phanerozoic climate
reconstruction,
and look at where the 5 big extinctions took place, it's noteworthy
that there
see
