Old Rocks
Diamond Member
The PETM was a very rapid warm up and also a rapid cool down. How relevant to what is happening at present is the PETM?
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The PETM was a very rapid warm up and also a rapid cool down. How relevant to what is happening at present is the PETM?
Why not? Do you believe the absorption spectrum of CO2 has changed in the intervening years?Not very relevant at all. I don't need some russian hipster doofus video to know all about the PETM. The PETM happened primarily as a secondary outgrowth from the K/Pg event of the 9-mile dia. Chicxulub Impactor fueled in addition by the soon to follow outgassings of massive continental volcanism from the Deccan Traps. There were no automobiles or factories involved. This led to a peak period of biodiversity mainly with reptiles and amphibia followed by one major and a couple of lesser extinction events over and pretty much defining the entire Paleogene and setting the beginning of the Neogene culminating eventually in the Quaternary Period and the beginning of the Quaternary Ice Age which became our Pleistocene Epoch.
It is very bad science to draw the conclusion that just because there were greenhouse gasses involved in the K/Pg Event and especially the Deccan Traps that we can draw future predictions now today some 60 million years later from man-made activity.
Do you believe mankind has any measurable impact on CO2? Mauna Loa shows no impact from global economic slowdown 2020 - 21Why not? Do you believe the absorption spectrum of CO2 has changed in the intervening years?