A village in the Swiss Alps has been buried beneath ice, rock and mud after a massive piece of a nearby glacier collapsed. On Wednesday, a landslide from the mountain side of Birch Glacier -- located in the Lötschental valley in northern Switzerland -- flattened homes in the Alpine town of Blatten after a large chunk of the glacier broke off,

The landslide that buried most of a Swiss village this week is focusing renewed attention on the role of global warming in glacier collapses around the world and the increasing dangers. How glaciers collapse — from the Alps and Andes to the Himalayas and Antarctica — can differ,