I skimmed another article about sea level rise (nothing really new), but it had a map of what the US coastline will look like if all the land ice melts. Got me wondering...what are the legal ramifications of this?

For example, Florida will -in essence- cease to exist. Is it still a state? Or will it be stricken from the Union (along with removal of a star from our flag, removal of two senators, and however-many representatives they have)?

I don't think any other state would suffer that. New Orleans would be gone, probably Houston, parts of both coasts, but not an entire state. It looks like FL is the only one that would lose literally everything. How would that be handled, politically/legally?

I'm assuming it won't be a big deal for other states that lose some territory. People will relocate, and congressional maps will be redrawn. But the states will still exist, people will live there, etc.