a) Most beach house owners are GW deniers. b) Most beach house owners have strong confidence of the future government. c) Most beach house owners are extremely rich so they don't care.
How about those who are GW believers, and seriously think it is critical timing for action rightnow, and have uncertainty about future government, and are not extremely rich. Are they selling houses and moving to inland?
I think it is a pretty good test of how many people seriously believe GW. Do not tell me the incentive of home value is not strong enough.