It only takes about 10 million years (or is it 100 million?) for a major change in an ocean current to occur.
So now is a good time to sell that ocean front lot so you don’t taka a big loss when the prices drop.
Uh, anyone ever hear of salt water pumps? See, easy solution right there. They could be solar or wind powered. Don’t worry about the chopped up sea critters or chopped and crisped sea gulls. After all, it’s for the good of the era.