Prof. Dr. Vincent Courtillot Präsentation from France at the International Energy and Climate Conference in Germany Dec 2010
http://www.youtube.com/watch?feature=player_embedded&v=IG_7zK8ODGA
at about 15 minutes in he gets into the solar radiation part, very interesting.
enjoy
Eric
Yep, this guy's research is quite fascinating. I admire his inetellectual honesty to recognize there are a lot of unknowns. A lot of the climate warming is attributable to solar activity, and in the last 10 year North America has actually been on a cooling trend.