The Ice Age was supposed to happen because of the soot in our atmosphere that was building. The theory went that it would block out the sun in increasing amount and, hence, cooling would be a result. Like a pollution-induced version of the "nuclear winter" theory.

Well, we no longer HAVE that kind of soot in our atmosphere because the industrialized world has laregely cleaned up it's act.

We DO, however, still throw a lot of CO2 up there.

Do I believe that climate change is real? Yes.
Do I think we're the sole cause of it? No.
So I think we're aggravating it? Yes. How much? I don't know.

What I *do* know is that it would be a good idea to get off of fossil fuels as much as possible and try to migrate to a more electric economy. If you don't buy the 'climate change argument' (and the degrees of it are certainly in debate), you just can't deny the "stop sending money to petro-funded terrorists who want to kill us" argument.