Not that it's funny, but the natural phenomona that give Glacier National Park it's name is disappearing. I think we all know the cause, if even certain head-in-the-sand types don't want to speak its name.
It's more than just the glaciers disappearing that is the issue here though. The glaciers are a source of water that is necessary for the wildlife in the region. Heck, us humans require water too, and the western U.S. isn't exactly flowing with rivers like the easter half is. With the glaciers disappearing, people and animals will be affected.