Re: Siberian traps
Here’s an episode from the fantastic How The Earth Was Made series on that event. Episodes from the series should be around 50 min. This upload, for some reason, is just 36 min.
How the Earth Was Made - Earths Deadliest Eruption - Documentary:
https://www.youtube.com/watch?v=B177t5xElQg
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Animal Armageddon The Great Dying - Episode 5
https://www.youtube.com/watch?v=IV5UJo6Kr5c
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This last one is a college lecture...
The Mother of Mass Extinctions: How Life on Earth Nearly Ended 250 Million Years Ago
https://www.youtube.com/watch?v=X3p_8UvWq44
Love this stuff always have.
My dad told me, back in the late 50s, that the dinosaurs probably died by extreme vulcanism (pretty well read for a NYPD beat cop). Later it was determined that the big rock that hit chixulub caused the extinction. Now the pendulum swings back and we speak again of the Deccan Traps...huge lava flows... in western India as a probable cause along with the chixulub event in the Yucatan. And Paleontologist Bob Bakker thinks it was caused by disease brought across land bridges by the dinosaurs themselves.
All very interesting to me
Actually, this was before dinosaurs, so my vote for the change was the development of trees and climax forests as opposed to marshes and ferns. It is generally recognized that climax forests use more CO2 than grasslands or other lower growing landscapes. I agree the Siberian traps were big, but might they have been started by a giant meteor strike?