Captain Haplo,
the part about Hummers wasn't from the WHO link although the whole SUV-thing is pretty significant IMO.
So far US has been the no. 1 opponent of all global anti-pollution efforts. And so far Obama hasn't done anything to counter this.
About deaths caused by pollution in the US.
http://www.post-gazette.com/pg/05180/529969.stm
"Sulfur dioxide and nitrogen oxides help form fine airborne particles and soot, which trigger asthma attacks and cause lung and heart disease linked to more than 20,000 premature deaths a year."