Part of a Swiss mountain's summit has collapsed, sending more than 3.5 million cubic feet (100,000 cubic meters) of rock crashing into the valley below. The incident was likely a result of thawing permafrost — and scientists have warned similar events are to be expected as climate change causes ancient frozen ground to degrade.
The incident occurred on June 11 after an extensive period of high temperatures in the country. Videos reveal the sudden collapse of Fluchthorn's summit, an almost 11,155-foot (3,400 meters) mountain in the Silvretta Alps, on the border of Switzerland and Austria.
