Philip, so you agree there is such a thing as pollution caused by some form of carbons.
The point is, then, that this pollution may, or may not cause global warming, but it does have negative effects on people's health, and no doubt on nature.
The idea would be to find ways of reducing it. Reducing the carbon footprint is one.
Electric engines on public transport is another.
But the author of the article is in complete denial about the negative effects of exhaust carbons and chemicals, and tries to converge the whole topic on "global warming".
His theory is: no global warming = no pollution = no problem!
This is a complete spin-off.