6. Absolutely. Bear in mind that as the Greenland ice sheet melts (when, not if)
sea levels will rise 27 freaking feet globally.
That won't happen overnight because that sheet is more than a mile think. It might take hundreds of years to disappear completely, but warming is happening much faster than the predictions of just 15 years ago. We are already at the levels projected for 2040 or 2050.
I disagree with the idea of offering them the full pre-storm price. The offer should be discounted by the damage. It is not the taxpayer's responsibility to insure these people against storm losses. If they didn't carry adequate insurance, screw them.