Remember this. The Arctic Ocean has not been ice free for 2.5 million years. The only Arctic Ocean we have even known as humans had a layer of ice keeping it flat when the wind howls. With no ice this ocean will get swells. Really big wind driven swells and they will severely erode  all of the surrounding shores which we have see in only small ways so far. Of course the sea level will be much higher too. It will become the most dangerous and destructive ocean on the planet. So when the last bear dies so does Prudoe Bay.