The Chinese smog has NOTHING to do with carbon dioxide.
That’s incorrect since CO2 is always a byproduct of the burning of coal. The chinese tend to burn “dirty” coal where sulfur is a major byproduct. However, water vapor can be a major contributor to global warming, if you believe in AGW.
I should have said, CO2 due to burning coal does not cause the chinese smog, but it is a component of the smog. Just as CO2 from automobiles is a component of the smog.