Even though it may not have so big consequences locally, there will probably come a raise in sea level. If we're not dead by an asteroid or giant volcano before it becomes a problem.
I remember playing Railroad Tycoon 3 in a future scenario, where the Netherlands had a giant dike/levy at the shore. It was a real thoughtful game with nice graphics. Shame it won't run on vista.
I still think it's a good idea to ditch fossil fuels because they are a finite resource.
Oh and all the F1 races are moved from Europe/North America to the Middle-East because of the bucket loads of money they make off oil.