[skeeter]

I've heard there are more trees in north America now than a hundred years ago.

BTW when did they decide carbon dioxide is pollution?

[Enterprise]

I'm not sure that there are specific words defining carbon dioxide as a pollutant. But the beginnings of the fraud start with the clean air act, and the USSC upheld the EPA in regulating it. In my opinion though, the answer is no, carbon dioxide is not a pollutant.

Is CO2 a pollutant?

[smokingfrog]

http://mobile.nytimes.com/2012/06/27/science/earth/epa-emissions-rules-backed-by-court.html?referrer=&_r=0

[Ben Ficklin]

SCOTUS ruled that CO2 was a pollutant in 2007. The case was Massachusetts v EPA.

As for smog/ozone it can be a problem when there is no wind such as LA basin and Central Valley. Or in the Valley of the Sun(AZ). Any place where the wind doesn't blow.

Clinton lowered ozone std to 80 ppm. When Bush was prez the science advisory committee said to lower the std down to 60-70 ppm but he lowered only to 75 ppm. Obama was supposed to lower it but never has, even though he was sued and lost. He'll eventually do it so it won't be hanging over Prez Hillary's head.

So, be sure and get your tailpipe tested.