Purdue University's Vulcan Project is collaborating with NASA and the Department of Energy to catalog North American CO2 production. They have summarized their data in a Google Earth application. Below, is a short video demonstrating the application. Just watching a couple minutes of video you can learn quite a bit about the demographics of CO2 emissions.
It is too bad that NASA lost the Orbiting Carbon Observatory (OCO) satellite this morning. Tools such as these make it easier for all of us to understand the magnitude of the problem.