I’m not convinced from what is presented here, but note that it is saying a drop in CO2 precedes mass extinction. By implication, CO2 is good. Well, of course CO2 is good. It is one of the absolutely essential ingredients of life!
From the UNIVERSITY OF MISSOURI-COLUMBIA:
Paleoclimate researchers find connection between carbon cycles, climate trends
Carbon cycling research can help scientists predict global warming and cooling trends
COLUMBIA, Mo. – Making predictions about climate variability often means looking to the past to find trends. Now paleoclimate researchers from the University of Missouri have found clues in exposed bedrock alongside an Alabama highway that could help forecast climate variability. In their study, the researchers verified evidence suggesting carbon dioxide decreased significantly at the end of the Ordovician Period, 450 million years ago, preceding an ice age and eventual mass extinction. These results will help climatologists better predict future environmental changes.
Figue 7 A comparison of δ13Ccarb trends and the GICE from Iowa (Ludvigson et al., 2000), Missouri (Metzger and Fike, 2013), Oklahoma (Young et al., 2005), Alabama (this study), West Virginia (Young et al., 2005), and Pennsylvania (Patzkowsky et al., 1997) [note:…
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