Italian authorities have closed off roads and evacuated homes after experts warned that a portion of a Mont Blanc glacier is at risk of collapse.Stefano Miserocchi, the mayor of the town of...

The frozen extremities of the northern hemisphere are melting at a near-record rate as heatwaves buffet the Arctic, forest fires tear through Siberia and glaciers retreat on Greenland fjords and Alpine peaks.Unusually...

For the tourists thronging the streets and pavement cafes of Chamonix, the neck-craning view of Mont Blanc, the highest mountain in the Alps, is as dazzling as ever. But the mountaineers who climb...