There are some good comments related to this from one of Pounelle’s reader/correspondents here:
http://www.jerrypournelle.com/mail/2010/Q4/mail651.html#Saturday
Basically he did this same thing with the models about 10 years ago - “hindcasted” with one of the top models by putting in data from the first 30 years of the 20th Century to see if it would “predict”, say, 1970.
The oceans boiled off in 1950.
So much for that model.
In another case, they *halved* the solar constant. Temperatures continued to rise, albeit more slowly.
I don’t care who you are, anyone who thinks things would continue to warm with half the energy input has a screw loose. Another crap model.
So it goes.
The oceans boiled off by 1950... lol!!