CO2 is a pollutant in the Earth's atmosphere. The O2 you breath has a concentration that is measured in the atmosphere. If that value decreases globally, global concentration of O2 decreases.
You are aware of what happens when you lack O2, right?
Well, if atmospheric CO2 increases, global CO2 increases, and that would be the equivalent of you standing in a room with increased CO2, and then dying.
So, would you like to take the CO2 as a pollutant challenge? Or do you concede that CO2 is a pollutant, anywhere, depending on the concentration?
You must have missed the part where I said;
'
TRY to be realistic.'
At present we have under 400 ppm CO2 in the
atmosphere and that isn't likely to rise to any
dangerous level within the next century or so
given the scientific history we know to be fairly
accurate.
Greenhouses routinely have 1,500 ppm CO2 levels
on purpose with no side effects to workers.
CO2 not a pollutant - Atmospheric CO2 is essential
to life on earth and is directly responsible for the
food we eat and the oxygen we breathe. Plants
feed on CO2 and emit oxygen as a waste gas, and
humans and animals breathe oxygen and exhale CO2.
CO2 non-threatening at 10,000 ppm - CO2 is not
a threat to humans unless it reaches 50,000 ppm
(exhaled breath is about 45,000 ppm).
Sailors in U.S. submarines experience no harmful
effects while routinely working in spaces where
CO2 concentrations reach 8,000 ppm.
Concert-goers in a packed auditorium are steeped
in 10,000 ppm. The recommended level in workspaces
for an eight-hour day is 5,000 ppm, and the typical
officer worker inhales air containing up to 2,500 ppm.
The most important consideration of all is that increasing
CO2 levels is no going to lead to runaway global warming.
Rising CO2 is natural - Atmospheric CO2 has risen
steadily for the past 18,000 years - long before fossil-
fuel-burning factories and power plants dotted the landscape.
Human-generated greenhouse gases account for roughly
0.28 percent of the greenhouse effect.
Man-made CO2 comprises about
0.117 percent
of this total.
The residence time of bulk atmospheric CO2 is roughly
five years, a fact previously acknowledged by former
IPCC Chairman Dr. Bert Bolin.
This figure is steadfastly ignored or disputed by
scientists who base their findings on carbon-cycle
computer models that project theoretically longer
lifetimes - 50 to 200 years, or longer - than those
actually measured in the real world.
Trying to say that CO2 is a pullutant in the real
world is asinine.
