During my time at Legal Insurrection, I have stressed the importance of viewing climate through the scope of geologic history. For example, I have done posts on “extinction-level events” throughout history.
Norwegian scientists recently did the same thing, comparing global temperatures with carbon dioxide (CO2) levels. The researchers conducted statistical analyses of observed and reconstructed temperature series and tested whether the recent fluctuation in temperatures differs systematically from previous temperature cycles, potentially due to the emission of greenhouse gases.
For example, the researchers gathered all the data from various sources, including those related to the four previous glacial and inter-glacial periods. They did a statistical analysis to see how more recent Global Climate Models (GCMs) compare.
They concluded that there was no way to link man-made carbon dioxide levels to climate chang
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