CNN Weather

Yesterday night I was watching CNN and I was really suprised by the Weather-News. Before coming to the actual weather stuff, the woman talked about this terrible air pollution, global heating, co2-emission and how bad it is for the USA and that all the nature catastrophes suffer from that. Then she announced a picture for arround one minute, showing air pollution, taken by the NASA and from incredible, you won’t belive 40km above! Finally the pic was shown (this nice asian brown cloud but on a different position) and it showed:??? China! Yes :-) Nice old China! With a big dirty cloud hanging over a huge region… What I am just wondering is, that iirc the USA are giving a s**t on the Kyoto Protocol and arn’t they the country with the largest co2-emission worldwide?