Personally I would not buy property south of the 45th parallel anymore (in the northern hemisphere). Even north of that we have seen shockingly high temperatures. Anything south of that will become a hellscape within our lifetime.
Obama bought a property in Martha's Vineyard, why would a former President with all the knowledge about global warming buy it?
I dont think rich people like to lose money.
Would you pay for ice when you know it would already melt when you get it?