Climate change is having a noticeable impact on the Mont Blanc region and other Alpine areas, where rising temperatures are causing glaciers to retreat and permafrost — a layer of soil and rock that remains frozen for at least two consecutive years — to destabilize. This summer, Europe faced record-breaking heat waves, which weakened the permafrost that had long helped stabilize the Alpine landscape. As a result, rock falls have increased, and some areas have become more difficult to access due to melting glaciers and snow, which have created dangerous crevasses and triggered rock collapses. In Chamonix-Mont-Blanc, a popular alpine town near Mont Blanc, deputy mayor Stéphane Bozon observed a noticeable rise in rock falls starting in mid-July. He attributed this to glacial retreat and the melting of snow, which have altered the terrain and made parts of the area less safe for visitors and residents. The Aiguille du Midi peak, a well-known summit in the Mont Blanc range, experienced a significant temperature increase in July, with average temperatures rising from 1.6°C (33.8°F) in 1994 to 3.3°C (37.4°F) in 2026, according to Meteo France. This increase highlights the long-term warming trend in the region. In Italy, Alpine glaciers have lost more than 40% of their surface area since 1991, according to the region’s glacier service. Vanda Bonardo, head of the Italian branch of the International Commission for the Protection of the Alps, noted that changes in precipitation patterns are also affecting the area. Instead of snowfall at high altitudes, which helps stabilize the ground, it now rains more frequently. This shift can weaken the soil and increase the risk of landslides and rock falls. Ludovic Ravanel, a researcher at Savoie Mont Blanc University, reported that the number of rock falls and collapses in the Mont Blanc massif this year is expected to reach around 400 — about 10 times more than two decades ago. A climbing guide named Stuart MacDonald described the rapid retreat of glaciers and the increased risks of rock falls, which have made his job more challenging. Recently, he had to cancel a planned trip to lead a group to the summit of Mont Blanc due to the heightened dangers posed by the changing environment.