Uh-oh, here we go.
First, I doubt bringing hydrocarbons from beneath the earth's surface and burning them down to CO2 and H2O at the rate we do is the greatest idea. Let me enter that into the record.
Next, the graphs Roger posted are complete garbage. It's quite well known that under the direction of the Evil One, James Hansen, NASA/NOAA went back and ALTERED OBSERVED DATA (with some lame excuse that equated to "people couldn't read a thermometer in the Old Days.")... which is pretty much the antithesis of "science." To put it in perspective -- imagine back when you were in high school (or even worse, college), and you made predictions based on how you thought an experiment would turn out. Then, when the data that you actually observed were nowhere near the numbers you expected, you figured it would be OK to go back and alter the data to make your experiment seem like not such a failure. Pretty sure if your teacher found out, you'd get an F instead of a D+.
And that's exactly what NASA et al have been doing -- trying to avoid the D+ (which you get for the effort, not the results).
The satellite records (which have only been around a few decades) are the only measurement system that hasn't been altered, and it doesn't show the alarming uptick the others do.
Pretty much every climate model NASA or the IPCC has offered over the last 15+ years has grossly overestimated warming. The models work under the assumption that CO2 is the primary driver of warming, and every last one of them has overestimated. This would lead a reasonable person to believe that the forcing effect of CO2 has been overvalued.
Don't get me wrong -- I'm all about science -- but this BS is science -- it's politics, and has been used as yet another tool to drive a wedge between people, to increase the power of our Dear Leaders.
Government-funded science is a joke. We need to keep science and politics separate.