WRITTEN BY KENNETH RICHARD ON MAR 19, 2024. POSTED IN NEWS
Carbon Isotope Data Undermine Theory That Humans Are Primary Drivers Of CO2 Increases
From modern instrumental carbon isotopic data of the last 40 years, no signs of human (fossil fuel) CO2 emissions can be discerned.” –Koutsoyiannis, 2024
It is routinely claimed that a telltale sign human emissions (fossil fuels) have irrevocably altered the atmospheric CO2 concentration is a declining trend in carbon isotope 13 (δ13C), considered an interruption of natural carbon cycle processes. [emphasis, links added]
But new research examining isotopic data from four observation sites (South Pole, Mauna Loa, Barrow, La Jolla – regarded as “global” in their coverage) indicates there is no isotopic pattern consistent with a human fingerprint.
“The standard metric δ13C is consistent with an input isotopic signature that is stable over the entire period of observations (>40 years), i.e., not affected by increases in human CO2 emissions.”
https://climatechangedispatch.com/carbon-isotope-data-undermine-theory-that-humans-are-primary-drivers-of-co2-increases/
