Quote:
Originally Posted by IamIan
Sense we have actual data showing periods in earth's past where the atmospheric CO2 level reached up to as high as ~7,000 ppm during the Cambrian area ... vs the ~400 ppm of today ... and even at ~7,000ppm there was not the magnitude of extinction event you describe.
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High atmospheric CO2 doesn't cause the mass extinction of land vertebrates when there are no land vertebrates to go extinct, so it doesn't really tell as anything about the Triassic extinction.
Also... mass extinctions happened anyway... due to oxygen depletion in the oceans.
More cheerfully, it was a world with an average temperature of 45-46 degrees C and with 15% more ocean coverage than today. Lovely place to live.