/sci/ - Science & Math

>>4127220
>all of the mass extinctions have been linked to climate change
CAUSAL LINK. Unless you're postulating that warm weather causes asteroid impacts and volcanic eruptions?

>and Eocene thermal max
Not an extinction event (pic related, PETM was 55mya, the big spike on the right is K-T at 65mya)

>except of course for coral reefs which have a limited choice of where to live and extremely limited ability to move in less than a century. Oh yes, they'll move, but until they do our coastal fisheries are fucked.
http://geology.gsapubs.org/content/37/12/1131.short
>We show that 10 of the 18 species studied exhibited reduced rates of net calcification and, in some cases, net dissolution under elevated pCO2. However, in seven species, net calcification increased under the intermediate and/or highest levels of pCO2, and one species showed no response at all. . .Whatever the specific mechanism(s) involved, our results suggest that the impact of elevated atmospheric pCO2 on marine calcification is more varied than previously thought.

>Except the next glacial event is expected in ~5000 years.
No.
>"We're at a very favorable state right now for increased glaciation," says Kutzbach. "Nature is favoring it at this time in orbital cycles, and if humans weren't in the picture it would probably be happening today."
http://newswise.com/articles/view/547541/