7 billion people won't individually be able to fix this but they can be nudged the right way collectively. Articles like this may be thin on facts but they do help. Admittedly, the Guardian is preaching to choir here of course. Their readership doesn't need a lot of convincing.
Anyway, whether you are a believer or not, buying real estate on the coast requires a bit of risk assessment these days. Places like Florida are mostly within the risk zone. So Republican state or not, they are going to have some issues there and the necessary infrastructure (e.g. dykes) won't build itself.
Talking with a Gen-Z'r, expect AGW to be sooner taken as a meme, and given ironic support only, rather than taken straight. The general feel is that Millenials went off the rails with certain topics and thus significantly lowered the credibility of the related talking points. It's not helped by the impression that the centralized media (like cable and big online platforms, basically "boomer" media) paint one picture with simplistic, sharp divisions, while the decentralized media (social media, new style online media) paints more complex, and more convincing picture.
I expect the shift away form belief in AGW to continue in subsequent generations.
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[1] http://www.pewsocialtrends.org/2019/01/17/generation-z-looks...
https://www.bloomberg.com/diversity-inclusion/blog/top-10-th...