The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (II). Solar activity unexplained/ignored ef

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The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (II). Solar activity unexplained/ignored effects on climate

Posted on August 7, 2022 by curryja | 192 Comments
The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (II). Solar activity unexplained/ignored effects on climate

by Javier Vinós & Andy May

“The complicated pattern of sun-weather relationships undoubtedly needs much further clarification, but progress in this field will be hindered if the view prevails that such relationships should not be taken seriously simply because the mechanisms involved in explaining them are not yet identified.” Joe W. King (1975)


2.1 Introduction

As showed in Part I of this series, the early 1980s saw a reversal in the consensus about an important sun-weather effect. The adversarial academic environment resulted in very few scientists dedicating their research efforts to this subject. Despite these difficulties, important advances have been made regarding the sun-climate effect. Lack of interest and disregard for a competing climate change mechanism hypothesis by mainstream climatologists has resulted in these advances being ignored. They remain under-cited and unknown to most supporters and skeptics of the CO2 hypothesis. More importantly, they are not discussed in most climate papers, they are simply ignored.

https://judithcurry.com/2022/08/07/the-sun-climate-effect-the-winter-gatekeeper-hypothesis-ii-solar-activity-unexplained-ignored-effects-on-climate/

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2.2 Effects on temperature and paleoclimatology

Paleoclimatology is the only subfield in climatology where a belief in an important sun-climate effect is considered. This is because the data obtained from proxy climate records of the Holocene often display a clear association with solar activity data obtained from proxy solar records. When one of us (JV) researched the climatic effects of the 2500-yr sun-climate cycle discovered by Roger Bray in 1968 (Fig. 2.1), he quickly found 28 articles studying proxies that clearly displayed this cycle (Vinós 2022). Of those, 16 (57%) explicitly state that changes in solar activity are likely the cause of the observed climatic changes, and only one explicitly rules the solar connection out. We are talking about profound global climatic changes of the distant past, similar in magnitude to the Little Ice Age (LIA) or modern global warming. Most paleoclimate researchers studying them conclude they were caused by changes in solar activity. Modern climatology cannot explain them since they took place at times when greenhouse gas radiative forcing changed very little.