So the market is moving us to adapt to the effects of climate change. Is that a problem or a good thing? Gentrification is a process of development and rebuilding. It leads to rising prices that make an area too expensive for the original residents, who move on to more affordable environs. This is not a disaster. People move in and move out; buildings and facilities get torn down and modernized. In many American cities, neighborhoods have changed and evolved several times for a variety of reasons. We should be promoting sensible adaptation to inevitable climate change. The government should help the process along by buying up coastal land after it floods and prohibit rebuilding on flood-prone properties and letting the NFIP charge full actuarial rates.