Quote:
Originally Posted by ThirdOfFive
Not really. Breathing 100% anything (which, by definition, contains 0% oxygen) is going to kill you. Our air is 70% nitrogen. It is an inert gas but at least one state has an execution protocol for 100% nitrogen to be used in capital punishment cases. It's not the nitrogen that kills, but the lack of oxygen.
That doesn't mean nitrogen is a "pollutant".
|
Fair point. I think of CO2 as a pollutant in that it is OUT OF BALANCE with the earth in relatively recent years. Its EXCESS gets into the seawater and causes a weak acid which KILLS (as in POLLUTES) the water and kills the coral reef. Maybe CO2 in its pre-1880 concentration was NOT a POLLUTANT, but today in its EXCESS state, it IS a POLLUTANT.