Whether global warming is or is not happening is not the arguement. The arguement is how much if any is the U.S. responsible and what kind of impact the things we do to combat GW will have. Warming and cooling cycles have been happening on earth since the earth was formed.
The great lakes were formed by glaciers as well as many other lakes and land formations. My pickup truck had no impact on this.
Global warming is political and is about money and power. I for one don't feel like lining some politicians or activists pocket with my hard earned money for this farce.
Kind of funny how algore and most of the other GW promoters have shut up since the GW science was busted.