I think, Dave if you're forced into citing an 87 year old physicist to back your case you must be getting desperate.
I would be interested to know why sceptics think the climate is changing - If you don't think it is then there's no point in talking because there's a mountain of evidence from satellites down to show it is.
The sun's output is much the same - slightly declining if anything since the 80s,
(The higher Stratosphere is cooling slightly whilst the lower Troposhere is warming)
Volcanic activity is not much different and stands at about 1% of Fossil fuel contribution:
http://hvo.wr.usgs.go...ch/2007/07_02_15.html
Cosmic ray effects are 100 times too small to explain observations
http://adsabs.harvard...s/2009GeoRL..3609820P
So if it's not coming from humans I'd be interested to hear your theories in where you do think it's coming from