Garry, I have only read the summary, but there seems to be nothing that
is different in the AGW theory that also exists in the Helenski/Kobe
theory after all the temperature has been rising steadily for the last
hundred years or so.
Any argument raised on behalf of AGW can be applied to Helenski/Kobe.

Now obviously I do not "know" the truth but I have always ben a skeptic.
It all seemed too packed up and a ribbon tied on it to the extent we
are prepared to spend $Trillions on it while some very eminent scientists don't believe in AGW.
H/K seems to explain the Roman and Medieval warm periods and the
maunder minimum and perhaps our present warm period, all spaced 600
years and 300 years apart.

I have just found a write up on this theory by Hendrik Svenmark which
has been published in Nature.
This article is at; https://tinyurl.com/yya8pzm5

Full journal reference
H. Svensmark, M.B. Enghoff, N. Shaviv and J. Svensmark, Increased
ionization supports growth of aerosols into cloud condensation nuclei,
Nature Communications DOI: 10.1038/s41467-017-02082-2

The paper is here https://www.nature.com/articles/s41467-017-02082-2

From a quick look it appears that this paper published back in 2017
does not refer to the affect of sunspots.
It maybe that the Helsinki/Kobe work made that connection in more detail.
The correlation with history may well be strong enough to chnage
many minds.

Alison Jane [Thursday, 3 October 2019 1:05:50 PM]:

I understand that correlations don’t necessarily imply the presence of causal links. However, I think that correlations may suggest the possible presence of a causal relationship.

I’m also thinking that it is possible to assess the ‘strength’ of a correlation.

I wonder whether you would accept – given a high correlative strength – that such a correlation might validly be used for concluding a causal link?

Like all cultist , you are always right.. so rock on in your world of denial

Garry, the correlation on its own is not enough, I agree.
The generation of clouds by Cosmic rays I think has been conclusively
demonstrated in a cloud chamber some thousands of times.
That the sun cycles and that sunspots disturb and enforces the magnetic
field is also well known.

Allison was your comment directed at Garry or me or both.
I thought that the co2 followers had stopped using denial words as
it made them appear very narrow minded closed minded.

I was only throwing the word denier back to a deluded true believer. Got be treat this topic with some humour old chaps!!