Is AGW from CO2 even possible?

True enough as long as there are CO2 'sinks' in other parts of the environment. Water, as in the oceans, forests as in the world's ever shrinking rain forests have been the world's CO2 sinks that tend to scrub excess CO2 from the atmosphere. Unfortunately these CO2 sinks are already overloaded. If that weren't the case the number of parts per million of CO2 in our paper thin atmosphere wouldn't be rising at a rate of 12 to 15 ppm per decade. The thesis that 'warming' isn't happening simply doesn't stand up to the data that proves that it is. While the rate of increase and the exact moment when that increase reaches a tipping point is not known and possibly not knowable due to as yet little understood atmospheric and heat physics, eventually in our near term historical time we WILL reach that tipping point. Possibly the physics mentioned in this question will retard climate change in the near term, but it doesn't change the overall future of this phenomena.