It's almost humorous when we beat ourselves up over "global warming" here in the US. I was just looking, out of curiosity, and the world's most polluted cities are not here... in fact our first entry on the list is at number 1080, Visalia California. Number 1080.... that's not even sneeze-worthy, compared to India, Iran, China, and Japan... and a whole host of other countries.
That should help put into perspective the hue and cry over our "terrible, planet-destroying" lifestyle. Algore lied to us.