Quote:
Originally Posted by tlgerdes
Where did you get that figure from Peter?
I have this figure "At solar maximum, the sun is about 0.1% brighter than it is at solar minimum"
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Wiki
has a reasonable graph here of data from 1975 to the present, though there is more variation in historic data
Modern data indicates a variation of 1 in 1366 watts/sq metre due the solar cycle.... or 0.00732 %
I am unaware of any study showing and significant correlation between the 11 year solar cycle and global temperature.... but would welcome a link.
Currently old sol has gone through a prolonged minimum (very quiet until very recently as any H-Alpha observer will verify) which doesn't correllate at all with NASA global temperature data.