A model suggests that 13 million Americans may be forced to move by rising seas during this century.

Far larger numbers are likely to be affected world-wide, but the focus on Americans is useful: when they realize what it will do to them, they may take action to stop it.

Exploitative real estate developers continue building in places that will surely be flooded. Some of them are building commercial establishments that might have a hope of repaying the investment before they are wiped out. The rest must intend to sell to suckers.