 But it's going to be a matter of decades probably before we can draw the line and connect the dots and say, okay, it's happening. You know, in a recent program we heard from the leader of the Carteret Islands, that's a chain in Papua New Guinea which is being washed over by the sea to the point where they may become the first permanent climate refugees. If Hansen and his team are right, islands in different parts of the world may become uninhabitable in the next few decades, they're saying. What do you think?