New Study: Neither Global Warming Or CO2 Radiative Forcing Were A Cause Of Past Mass Extinctions
By Kenneth Richard on 10. July 2023
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Over the last 210 million years [Myr], (a) CO2 falls as temperatures rise (negative correlation, r = -0.76), (b) mass extinctions occur 4.08 Myr after CO2 peaks, and (c) global warming/CO2 radiative forcing “did not cause extinction of biodiversity.”
A new study has been published in Earth’s Future journal that supplements a 2017 analysis of hundreds of millions of years of CO2 and temperature variations.
Davis (2017) argued that for 97.44% of the last 425 Myr there was either a negative correlation (CO2 falls, temperatures rise or CO2 rises as temperatures fall) or no correlation at all between variations in global temperatures and radiative forcing by atmospheric CO2. In other words, the IPCC-proposed link between the rise in atmospheric CO2 as the causal mechanism and global warming could only explain 2.56% of the variance in the long-term paleoclimate record.
https://notrickszone.com/2023/07/10/new-study-neither-global-warming-or-co2-radiative-forcing-were-a-cause-of-past-mass-extinctions/
