Research published in Scientific Reports, extends the controversial view that climate change is the result of natural solar cycles and the Earth getting closer to the Sun. The authors claim that these phenomena account for the 1C increase in global temperatures over the last century and that over the next 600 years global temperatures will increase a further 3C.
Does this view have any credibility? What is the IPCC position on the effect (if any) of the solar systems barycentre?
I am not a specialist to answer the question on credibility, but I guess the authors and the reviewers who approved the paper are.
As for the IPCC position, I doubt that they would accept anything that might undermine their CO2 dogma.
Already, the heretics are under scrutiny: https://www.newscientist.com/article/2209895-journal-criticised-for-study-claiming-sun-is-causing-global-warming/
In the end, it pretty much doesn't matter, what is causing climate change... we cannot change the distance to the sun, but we can become a CO2 neutral society to prevent catastrophal Changes. The scientific community is still in consensus about the human effect on climate change and one paper will not change that in the near future. The IPCC is a international organisation, so i guess pathdependence will play a role on the position they take on that report. We should not reject the past scientific approved consensus just because on paper might don't agree with that. And I dislike political populism and comparing a scientific consensus and a clear political objective (which people really worked hard for) with a "dogma".
It seems to me that the best way to define the current climate situation is that we are in a period of climate variation rather than climate change.
This has already happened and if we think of geological ages it was quite recent. In the northern hemisphere between the eighth and twelfth centuries, warming periods were recorded (see The Great Warming - Brian Fagan), which altered the behavior of Europeans and there was also a period known as the small ice age (between the thirteenth and nineteenth centuries).
Most likely the causes of these climatic variations were natural and only astronomical aspects can explain them.
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