Facts are good things and I like them, but I think you’re right that people’s minds can’t generally be changed by facts. They can, sometimes, obviously. If you want to go to Al’s Diner for lunch, and then find out that the restaurant is under investigation by the board of health because half the people who ate there in the past month have gotten ptomaine poisoning, then, sure, knowing that fact will probably change your mind about what restaurant you go to.
However, that being said, we filter all of the facts we get through our mindset and set of values, which is made up of all the experiences we’ve had so far in our life, and which, if it changes, only changes really gradually, and we accept those facts that support our worldview and reject or rationalize those that don’t. So, for instance, you probably can’t use facts to turn somebody prolife or prochoice, or homophobic or progay rights. At least not in the short term. Mindsets don’t change that easily.
Frankly, the situation with the OP is a good example of this. It doesn’t matter how many facts or how much evidence people put up to show that anthropogenic climate change is happening. The OP won’t believe it, and he’ll downplay or ignore any facts that show it.