Maybe two things. That's an insulting question, you ant hill. But here, read for yourself. A more definitive reconciliation of modeled and observed temperature changes awaits the extension and improvement of the observations and the algorithms used in processing them, better specification of the natural and human-induced climate forcings during this period, and improvement of the models used to simulate the atmospheric response to these forcings. Gee, it sounds like we don't know anything.
Good science begins with good questions.
These are obviously very good questions. Fifteen billion dollars worth. They can't get the Fourier fudge factors to work. Especially the facile flux adjustments. The hot air keeps rising on them.