Unbelievable Climate Change BS

Beatrix_

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David PS

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Beatrix_

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Statistics Norway
Published: September 2023

To what extent are temperature levels changing due to greenhouse gas emissions?

Abstract

Weather and temperatures vary in ways that are difficult to explain and predict precisely. In this
article we review data on temperature variations in the past as well possible reasons for these
variations. Subsequently, we review key properties of global climate models and statistical analyses
conducted by others on the ability of the global climate models to track historical temperatures.
These tests show that standard climate models are rejected by time series data on global
temperatures. Finally, we update and extend previous statistical analysis of temperature data
(Dagsvik et al., 2020). Using theoretical arguments and statistical tests we find, as in Dagsvik et al.
(2020), that the effect of man-made CO2 emissions does not appear to be strong enough to cause
systematic changes in the temperature fluctuations during the last 200 years.

9. Concluding remarks
In this paper we have reviewed data on climate and temperatures in the past and ascertained that
there have been large (non-stationary) temperature fluctuations resulting from natural causes.
Subsequently, we have summarized recent work on statistical analyses on the ability of
the GCMs to track historical temperature data. These studies have demonstrated that the time
series of the difference between the global temperature and the corresponding hindcast from the
GCMs is non-stationary. Thus, these studies raise serious doubts about whether the GCMs are
able to distinguish natural variations in temperatures from variations caused by man-made
emissions of CO2.
Next, we have updated the statistical time series analysis of Dagsvik et al. (2020) based on
observed temperature series recorded during the last 200 years and further back in time. Despite
long trends and cycles in these temperature series, we have found that the hypothesis of stationarity
was not rejected, apart from a few cases. These results are therefore consistent with the results
obtained by Dagsvik et al. (2020). In other words, the results imply that the effect of man-made
CO2 emissions does not appear to be sufficiently strong to cause systematic changes in the pattern
of the temperature fluctuations. In other words, our analysis indicates that with the current level of
knowledge, it seems impossible to determine how much of the temperature increase is due to
emissions of CO2
.
 

Peatress

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View: https://rumble.com/v3t8uua-gregory-wrightstone.html


Gregory Wrightstone is Executive Director of the CO2 Coalition, which provides facts, resources and information about the vital role carbon dioxide plays in our environment.

He had a 35-year career in the energy industry and has authored or co-authored more than 200 papers, publications and commentaries on climate change and energy. He is the bestselling author of Inconvenient Facts

Inconvenient Facts #1 Amazon Best Seller on Climate Change

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Mossy

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