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Another Climate Sensitivity Study Finds Doubling CO2 Leads To 0.5°C Warming At Most

By on 20. December 2024

The evidence that rising CO2 concentrations lead to inconsequential warming keeps piling up.

In a new study, seven Viennese researchers provide more evidence the CO2 absorption band is already saturated at today’s concentrations (over 400 ppm). Rising CO2 levels thus cannot drive significant global warming.

“Data from ground measurements indicate that the downward (backward) radiation of the atmosphere shows indeed full saturation of the IR CO2 bands and does not support noticeable additional Thermal Forcing (TF) by increasing CO2 in the lower atmosphere.”

“…we can expect full saturation already at current concentrations.”

As Table 2 from the study indicates, doubling CO2 from pre-industrial levels (280 to 560 ppm) increases global mean infrared absorption by just 1.1% (82.1% vs. 83.2%). This is an indicator of the decreasing effectiveness of CO2 as a warming agent as its concentration rises.

Indeed, a 400 to 800 ppm increase “shows no measurable increase in the IR absorption for the 15 μ-central peak,” and thus it can lead to just 0.5°C warming at most.

Posted in , | 16 Responses

16 responses to “Another Climate Sensitivity Study Finds Doubling CO2 Leads To 0.5°C Warming At Most”

  1. Hansi
    Hansi 20. December 2024 at 9:06 AM |

    https://i.ibb.co/G29192r/image.jpg

  2. David Hamilton Russell
    David Hamilton Russell 20. December 2024 at 12:51 PM |

    I read this study and it’s total garbage. Too many inanities to enumerate. Maybe it’s a bad translation.

    1. Ladislav
      Ladislav 23. December 2024 at 6:30 PM |

      I beg to differ. It is known for some time that CO2’s capacity to absorb radiation is saturated. Check here:
      https://notrickszone.com/2024/04/23/3-physicists-use-experimental-evidence-to-show-co2s-capacity-to-absorb-radiation-has-saturated/

      1. Ceist8
        Ceist8 7. January 2025 at 7:24 AM |

        There is a good reason that non-peerreviewed ridiculously flawed paper by 3 Polish Physics-illiterate Engineers was retracted. They made the same simplistic mistakes as Angstrom did over a 100 years ago.

        https://t.co/sh5KVI9vPC

        See debunking thread:

        https://x.com/Ceist8/status/1783691830754005428

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  6. Dr Roger Hodkinson
    Dr Roger Hodkinson 22. December 2024 at 11:47 PM |

    Re: “Too many inanities to enumerate”
    So, go on, list them!

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