Missing from this analysis is the fact that the U.S. has sent most of its dirtiest industries, and especially the dirtiest segments of dirty industries, abroad, especially to China.  Even so, when it comes to GHG, the U.S. remains on an upward swing.  Think of it as a two-track growth plan for poisoning the atmosphere.  Where once the U.S. lead the world in GHG emissions from activities that took place mostly on its own soil, now it does all that plus it has smokestacks in China working overtime to make that much more air pollution associate with stuff that Americans will consume and throw away.  

Go, team, go!