The Briefing Room
General Category => Science, Technology and Knowledge => Topic started by: rangerrebew on June 30, 2023, 11:30:00 am
-
Sunday, June 11, 2023
"How CO2 Starvation & Plate Tectonics Caused the Greatest Mass Extinction, the Permian Great Dying"
Welcome back everyone.
This video will explore the wealth of evidence suggesting that the combination of CO2 starvation and plate tectonics caused the greatest extinctions on earth collectively known as the end Permian extinction or the Great Dying.
The end-Permian marked the transition from 300 million years of Paleozoic plant and animal dominance and the resetting of earth's evolutionary trajectory, towards our modern fauna.
The Permian extinctions represented a loss of 57% of all biological families, 83% of all genera, 81%of marine species and 70% of terrestrial vertebrate species in existence in the end Permian’s last million years.
Coinciding with these Permian extinctions was the decline of abundant CO2 concentrations since the Ordovician period to the stressful low concentrations in the Permian.
For the first time in earth's history, CO2 concentrations fell below 1000 ppm, the concentration that supports maximum photosynthesis productivity.
https://perhapsallnatural.blogspot.com/