With Climate Journalism Like This, Who Needs Fiction?
blogs.discovermagazine.com
blogs.discovermagazine.com
[I don't deny that warming has occurred over some time period that extends through the present. (After all there is only one other possible characterization for any such period.) I haven't yet seen a strong argument that ties a significant portion of such warming to activity that human organizations can affect in a meaningful way.]
Either way we've been burning coal and oil like mad since the middle of the 1800s, and that exhaust mass from combustion doesn't just disappear into the ether. It went somewhere. Where did it go? Add up all the spots it went (e.g. trees, chemical reactions with soil, in atmosphere, with the oceans, etc.). If you still have CO2 left over, then the Occam's answer is that it's still where you left it: In the atmosphere. Other conclusions require evidence to support.
In the meantime: http://climate.nasa.gov/evidence