I hope you are being sarcastic. You must know that the byproducts of burning any hydrocarbon are co2 and h2o...that’s high school chemistry man
Look, it is just a fact that we are increasing the concentration of CO2 in the atmosphere by burning fossil fuels that have concentrated carbon out of the atmosphere for millions of years. CO2 has increased, and all the evidence is that its increase is anthropogenic.
The issue is to what extent this increase in carbon in the atmosphere is affecting the earth’s atmosphere.
In any case, we cannot add water to the earth’s atmosphere, which is for all practical purposes saturated with the stuff. It enters and leaves the atmosphere due primarily to temperature and other factors. Except inside buildings and in limited areas in deserts, we don’t presently have the ability to affect it much.