I'd say the problem is not enough people understand what the solutions are. Those who push the apocalyptic narrative included, as they tend to be against nuclear energy (a clean, safe, compact, 24/7 source) and even shut down existing plants. Which have been getting replaced by coal!!

It's such a heads-I-lose tails-you-win situation. If I talk about extreme cases I'm accused of alarmism. If I talk about nearly-certain cases that fall short of extinction, I'm told it's not important.