People don't usually change their minds. People throw numbers at each other until all sides are blue in the face, and depending on if your brain works in an optimistic or pessimistic way, you'll be able to carve out a story to fit your thought process. It's been said many times, by many people, over many years, but we all really do see what we want to see.
In what objective way is climate change truly a problem? Take human consciousness out of the equation, and the climate changing is just a thing that happens. Whatever may or may not be the driving force, it's just a thing that happens. It's not something to fight or stop. It's not good, or bad, it just is.
Take the human mind out of a lot of equations, and a lot of problems fade away. We assign words like good and bad to things that happen, and the bad things become problems, even though we made up the word problem. Out of thin air.
Optimistic messages don't get people doing anything. Pessimistic messages make people not do anything. One is, eh, we're good. One is, eh, what's the point. Either way, humans will do what humans do. We'll call some of those things good, some of those things bad, but we don't really know. That's why our solutions to problems create the next problem to be solved. Good, bad, solution, problem, these are words that exist and have meaning only in the human mind.
On the one hand, we love change. Social change, when it's for the good. Economic change, again, when it's for the good. On the other hand, we don't like change. We don't like climate change at all. We even say we have to fight it, yet we also say violence doesn't solve anything.
We're all crazy, nobody has any idea of what to do, or not to do, and we just make shit up as we go.