As much as I enjoy post-apocalyptic fiction (AKA “collapse porn”), and am interested in the subgenre of “Cli-Fi,” I don’t think it will have any effect on our actual responses to climate change. The people who don’t think climate change is real either wouldn’t read Cli-Fi or don’t read at all.

https://www.newyorker.com/books/page-turner/how-climate-change-fiction-or-cli-fi-forces-us-to-confront-the-incipient-death-of-the-planet