what causes temperature declines in solar minimums?
Ok, so I looked at the sunspot data from ice cores, now lets consider the data for beyllium 10
or as an excel file
According to http://wattsupwiththat.com/2009/03/17/beryllium-10-and-climate/
beryllium 10 is a marker of solar activity
and overlap the sunspot data
and look at this paper
I'd like someone to do a similar analysis of the data as Basil's and mine . One could look at sulphate levels too, there is a nagging in the back of my head that volcanic activity is a factor which cant be ignored here.