Scorching temperatures are changing conditions on Mont Blanc, with melting snow and unstable ice making some alpine routes more dangerous.⁣ ⁣ Hikers and mountain guides say warmer nights mean the snow isn't freezing properly, increasing the risk of collapsing ice and widening crevasses.⁣ ⁣ Many climbs are now starting earlier in the day as conditions resemble peak summer weeks ahead of schedule.⁣ ⁣ #news #weather #heatwave #globalwarming #climatechange #MontBlanc #hiking