This analysis provides further evidence that it is solar activity that is the dominant driver of the climate change seen during the period 1860 to 2020. The “fingerprint”, trend and influence of the 11 year solar cycle activity is obvious (Fig 1) and the monthly temperature anomaly variations (Fig 2 a & b) are clear evidence that the sun’s cycles and orientation are highly influential. My previous article highlighted the temperature changes over the entire period as attributable to the Milankovitch cycles. I had failed to identify that there are other solar cycles, specifically the 11 year cycle. The hypothesis offered by Professor Henrik Svensmark offers a plausible explanation of why these solar cycles are a key component of climate change. Factors that impact short term trends of the earth’s climate are probably far more complex than identified here.
In conducting a literature search on this subject, I came across an article from a NASA climate modeller (6). This article highlighted the various failures to find evidence in the temperature record of the 11 year solar cycles. Consequently, anthropogenic global warming was alive and well. Well, it turns out the solar cycle signal was loud and clear as they were just looking in the wrong way and the wrong place.
The good news for mankind is that the impact of carbon dioxide at the current levels, and therefore the burning of fossil fuels appears to be almost “nett zero”.
https://sandrews.substack.com/p/further-analysis-of-data-from-berkeley
