The IPCC does not flatly reject Svensmark's theories....
Yes, they did. Twice. I already identified the relevant sections, and cited parts of those passages. It is screamingly obvious you haven't read either the passages or my citations. FAIL.
How have you characterized Svensmark's theories, well let's see?
In Post #644 you said...
sigh
Svensmark's theory is, in a nutshell: "More solar wind = less GCRs = less clouds = hotter atmosphere."
(We should note, yet again, that this has resulted in him making busted predictions, such as saying in 2009 that "the next 10-20 years will be cooler;" in fact 4 of the hottest years on record happened after 2009. Anyway....)
Since you need me to clarify #644:
• Svensmark is not actively working (at this time) on measuring the effects of cloud cover on temperatures. As best I can tell, he's relying on other research for this claim. I.e. his work does NOT address the uncertainty identified in that one quote (which you now seem to have abandoned, ooops).
• Svensmark isn't talking about feedbacks. He is not, for example, saying that "hotter atmospheric temperatures causes more vapor, which makes the atmosphere more sensitive to GCRs, which causes more cloud formation."
That would be a feedback. He's talking about a forcing mechanism -- i.e. something outside the environment which forces changes in the climate. (In this case, "more GCRs = more clouds = lower temps.")
• I was trying to point out that the amounts of GCRs are a fraction of that of solar irradiation. Thus, it is likely that the effects of GCR are quite small, almost certainly dwarfed by variations in solar activity -- which is also quite small. (Hence the poor correlations between GCR flux and temperatures.) Now, I will agree that I didn't phrase this well, but I certainly did not say that "Svensmark is saying that GCRs directly increase temperatures." Nor, AFAIK, has Svensmark
ever proposed that theory.
Svensmark's theorie is not that cosmic rays are effecting solar irradiation,
but rather that changes from the sun regulate the amount of cosmic rays that can enter the atmosphere.
Your and through your inference the IPCC's position is that CRs are a very small external heat source,
Svensmark's theorie is solar changes cause cosmic rays to be like an inverting amplifier.
Actually not so subtle of a difference.
Uh, no. Neither I nor the IPCC claimed that GCRs affect solar irradiation, or that GCRs are an "external heat source." Not even remotely close.
You would have know that if you actually read the IPCC docs, or the parts I keep citing.