I think it's due to a multitude of factors: 1) It sounds like a trivial amount, it's not much more than your arm span. It's difficult to translate this to unde

I think it's due to a multitude of factors: 1) It sounds like a trivial amount, it's not much more than your arm span. It's difficult to translate this to understanding how many places would be flooded. 2) There's an insane amount of fake news out there which leads to cognitive dissonance. 3) They simply don't care. You'll often hear people say "well what do you expect when you're right next to water? These people accepted the risk, it's their problem"