I was looking through some of Dr. Nicola Scafetta's work while I was browsing through his Widget, and I saw that he was part of the Active Cavity Radiometer Irradiance Monitor, which monitors TSI from the ACRIM satellite.
I googled it, and I found that this particular satellite showed an increase in the power of the TSI during the minimums associated with the 11 year cycles from Cycle 21 to 22. While the maximum power remained about the same, an increase in the power during the minimum could have TSI directly explain some of the warming that took place in the late-20th Century.
TSI then decreased, which is where ACRIM is in agreement with PMOD, probably contributing to the standstill in temperatures over the last 11 years.
http://www.acrim.com/images/earth_obs_fig26.jpgHowever, PMOD shows no such increase in the minimums of Cycle 21 and 22.
http://www.acrim.com/images/earth_obs_fig27.jpgThese discrepencies need to be resolved, before anyone can go saying that Man is responsible for most of the warming that took place over the late-20th Century, since we aren't even certain what the brightness variations in the sun were doing during this timeframe.
Comments appreciated!