My point is, that you don't need to be posturing by trying to throw big words around.
As far as I know, I'm the only person on this forum who has any real qualifications to make judgements on what affects man-kind could have on the atmosphere. And I say it's insignificant.
So what is your basis of claim to say otherwise?
The point is that the troposhere is an extremely thin layer and if you honestly believe that constantly pumping large amounts of pollutants into it year after year has no significant effect, then you're nuts.
Extremely thin layer? 7.4 miles would be it's average thickness.
Do you have any idea how much the atmopshere "recycles" itself in a day? 6% water vapor is how much the atmopshere in any given area can hold before it begins to precipitate. At that point, rain fall is created. Cloud Condensation Nuclei, or CCN is required for water to turn from a vapor to a liquid. Those "chemicals" we put up in the air are a signficant part of the CCN that is found in every bit of rain that touches this planet. Those sulfates, carbon, and just about anything else you can think of come back down to the earth. They aren't a part of the atmosphere anymore.
Then you need to think about all the CO2 that is eaten by the plant life on this planet. Did you know that 10,000 years ago during the last ice age, large scale agriculture was impossible? When the ice caps began to melt, enough CO2 was released for the allowance of agriculture to take root. This led to the rise of our first civilizations, and the eventual point we are at today. There was enough food for these plants to now exist.
The amount of arable land that we use for agriculture has risen drastically over the last century. The amount of CO2 consumed by plant life has risen over the last century. The plants that we eat absorb more CO2 then trees do. They grow faster, so they require more fuel, so they absorb more. The more we plant to feed our people, the more CO2 will be consumed by these plants.
So when I say I don't think we have that big of an effect, I say it with reason.
What we put into the air does not stay there.