I believe that world ocean level will be catastrophic by 2100. I do not plan on living until anywhere near 2100. In fact, 2050 would be pushing it. If I wanted to have a nice seaside house *now*, why is that cognitive dissonance? Sure, it is likely that I'd have to give it up in 15-20 years, but I might not make it that long myself.
This is a great argument for renting. As the world updates it's estimate of the value of this property based on the fact it will have 0 value in the next 25-50 years your rent will keep going down, and you will preserve the massive investment you would have otherwise had to make, possibly by buying land 1-2 meters higher up that is currently undervalued.
