Bad news for all you ski bums out there. Summer glacier skiing has been called off at the French resort of Alpe d'Huez - which, coincidentally, is French for "ratify Kyoto." The Alpe's Sarenne glacier has become unstable due to melting - a particularly worrying development, since the glacier sits at a relatively "safe" altitude of 9,000 feet. (A 2003 United Nations report on global warming warned that rising snow lines would make most low-lying European resorts disappear in the coming decades.)