We've all seen the receding glaciers, and I heard today that the north pole is predicted to be ice free this summer. Obviously GW is happening. The question is whether it's man made or just part of nature's normal cycle. I kind of hope we did it, because we know what we've done to screw this place up and it can't be a bad idea to clean it up a bit. Even if it's not our doing, it might help. The alternative is to tell the grand-kids to invest in water wings and sun tan lotion.