So the sea levels rise. What is the worst that can happen. We are not talking tsunamis here, it is 7 inches in a century (Although I HAVE had problems with 7 inches overnight, but, ahem, I digress). People move to higher ground, and a bunch of slum-ridden coastal cities share the same fate as Atlantis. It might even have a cleansing affect. So Harrisburg becomes a major port, so what?
Why, yes. You are correct. A further benefit was realized when I closely examined a topographical map following the reading of your comment. Flooding to the degree our nations southern border from sea to shining sea, the breadth of which would require the abilities of only those having Olympic qualification to cross, would be the result. A number easily addressed by the deployment of a low number of personnel resulting in a huge saving of national treasure. Hmm. I’ll uncap a bottle of Dos Equis in an effort to promote the ice melt through CO2 release and consider further. Would you care to contribute while we wait?