I've written about Yakutat Glacier before, since we had a NSF funded project there a few years ago. This is a big glacier and one of the most rapidly changing in Alaska. In fact, in a recent paper we showed that the glacier is very likely to disappear within this century, even without further warming. In the past few years the glacier has lost well over 10 km2 of area, and this rapid retreat is continuing. Now, it is the east branch that is rapidly falling apart.