If people increase the amount of carbon dioxide that is produced, it will increase global warming. This will be true if two things are also true:
- We must assume that the scientists are correct and that there is man-made global warming.
- We must assume that there will be no breakthroughs in terms of doing something else with the carbon dioxide that is produced. People are talking about injecting it into the ground, for example. What really matters is not whether carbon dioxide is produced. What matters is whether it is put into the atmosphere.
What is usually called acid rain is caused by sulfur and nitrogen, not by carbon dioxide.