Any carbon monoxide or dioxide or other Carbon is a heat sink the more you put into the atmosphere anywhere you will get a temperature rise over the normal oxygen,nitrogen and a mix of other, its reflectivity is just lower. <a href="http://www.esrl.noaa.gov/gmd/ccgg/trends/You">http://www.esrl.noaa.gov/gmd/ccgg/trends/You</a> have to be ignorant not to know that carbon acts as a heat sink the more you put into the air (parts per million) that is the more