"The carbon DIoxide emitted is effectivley inert. It does not...

"The carbon DIoxide emitted is effectivley inert. It does not combine with anything to make it a pollutant in true meaning of the word. "

because somthing is inert doens't make it not a pollutant.

You don't an over abundance of He,Ne,N2,Ar,Kr,Xe,SF6 either

CO2 is greenhouse gas because of it molecular stucture, not because of it reaction or lack there of with other elements.

Every effort should be encoraged to reduce "smog-causing nasties," we don't want to end up like China.