From a comment of mine at Same Facts about coastal properties and sea level rise:
One other option for climate denialist landowners – sell 99-year options to obtain ownership of their land for token value should it become uninhabitable. Denialists will be willing to [sell] this cheaply. Science believers will be willing to buy in order to get whatever residual value the land has other than residential use (harvest, recreation etc.).A denialist with a large expensive coastal property should be willing sell for a small amount of money an option to buy it for a nominal amount if sea level makes it uninhabitable. The obvious problem is once the land's uninhabitable then it loses a lot of value, but maybe there are other uses that give some benefit to owning it.
I had an earlier version of this idea several years back thinking about the end-of-the-world types and how to bet with them (aren't we due another outbreak?). Climate change isn't the end of the world, but it's going to be curtains for a lot of residences.
UPDATE: just thought I'd add a personal note - yours truly is now the Vice-Chair of our Water District, a feat I achieved by "waiting my turn." It doesn't mean a whole lot, one or two extra committee assignments. If I'm re-elected then I'll be Chair next year and have the honor of chucking aside any goals I have for the District for that year, to work instead on the goals of the rest of the Board and on everything else the Chair's got to get done. Should be fun.