I really think that the vast majority of people, say 90%, really don't think 'this is still "in dispute"'. Of those, I wouldn't be surprised if a decent share disagrees on the severity of the problem, and probably 95% of those 90% have very little idea about the time-sensitivity of the issue in the first place. However, virtually nobody I speak to thinks it's a non-issue, and if you look at polls about whether the government should do more against it, you usually see a large majority (and that's only a subset of those that acknowledge that there is an issue at all).

Perhaps murica is, as usual, an outlier among generally educated countries, but let's not pretend like there is too much dispute to get things done on this topic, or that denying it is anything more than a conspiracy theory with a vocal troll/joke aspect to it as well as a couple of real conspiracy theorists.

The biggest problem is that people don't believe they can do anything. A family member of mine wants to put a solar park in a nearby field. "Great!" I said, "I'll chip in!" Realizing I wasn't doing it for monetary gain (I don't live nearby enough to really profit from it), they then told me to not be "more catholic than the pope" (not sure if that translates well) and wouldn't accept the money I wanted to put towards this directly effective good cause. They (singular) are not doing it for the climate, they don't believe it will make a difference. They think it's a good investment for their own riches. But they don't think climate is a non-issue, just that they can't do anything about it, nor believe that there would be a sufficient majority to collectively (i.e. have the government) do something about it.

I mean, they're right about this being absolute peanuts, but the presence of solar fields and wind turbines also sends a message to those who learn of it: we can do this, we are doing things, it is economical, let's go for it.