On Mon, 02 Jun 2014 22:40:04 -0600, Greg Goss <email@example.com> wrote:
>kefischer <firstname.lastname@example.org> wrote: > >>On Mon, 02 Jun 2014 17:23:28 -0600, Greg Goss <email@example.com> wrote: > >>>Well, if you go back 250 million years, you see a CO2 rise as fast as >>>it does now. One theory is that a megavolcano burying Siberia lit off >>>a bunch of coal fields, and both the volcano and the coal fields sent >>>the CO2 sky-high. >>> >>>Of course that event is commonly called "The Great Dying." >> >> Is there any evidence of the carbon monoxide >>then, coal burning without excess oxygen can >>result in 50% CO, and lots of black smoke. > >[supporting evidence for the hypothesis] > >I've never neen that speculation raised about the "great dying". >Would CO be stable enough to cover the planet, or would it be mainly >local to proto-Siberia? And would it affect plants, too? I think >that the Great Dying despeciated plants as well as animals and fish.
It would spread over time with the winds, but if the amount of oxygen was what it is now, the concentration might have taken a long time to affect animals.
The temperature increase at the time does not necessarily mean it was caused all by CO2 increases though.
And temperature increases are not as great where it is hot as where it is cold, that is one of the good things about GHG radiation to space.