Good question.
Mr. Schrag has worked the numbers and says that Greenland melting away would make ocean levels rise 3.5 meters.
The aforementioned coastline would look something like what is pictured below, in the classic before/after style.
I dont think any new levee system devised could save precious New Orleans from that.
All of this is brought up in Jonathan Shaw's thought provoking article called Fueling our Future
It is an interesting read in the light of the new upswing of support for nuclear power.
...
These are the times of prophets and madmen.
.
.
And fishermen.
