Florida has the lowest highest point, at 345 feet. If all of the ice in Antarctica melts, the sea level will rise &quot;only&quot; 200 feet. So even in the most dire situation, entire US states will not go completely under water. That said, almost the entire rest of the state would be underwater should that happen.<p>However, ~1&#x2F;5 of FL will be underwater, according to the &#x27;unchecked pollution&#x27; map, which is nothing to sneeze at.<p>&gt; a lot of this can be coped with<p>Well, yes. Humans will likely survive as a species. As the article says:<p>&gt; Existential nihilists however, can relax: Nobody’s doomed yet. Future Americans are going to deal with the flooded basements and foregone civilization.