Global Warming?

“The fact is that we can’t account for the lack of warming at the moment and it is a travesty that we can’t.” - Dr. Kevin Trenberth, IPCC climatologist

This is the main reason why I am very skeptical about global warming. I'm an engineer, and the first thing I do when doing a computer model is VERIFY THE MODEL. For example, we took power system harmonic measurements at key load points within a plant. We also took measurements at the main incoming service. When we built our power system model, to analyze the harmonics, we checked to see that our model matched the actual measurements we took at the incoming service. We did not proceed with "what if" scenarios until our model matched the actual real-world conditions.

I have seen no evidence that the "climatologists" have ever taken this very basic first step. In their case, they could take conditions from, say, 1990, run their models to see what they think should happen by 2000, and then compare to what was actually measured in 2000. Why don't they do it? Are they scientists or politicians?