French experts announce that Mont Blanc has reached 4,807.47 meters after the ice layer grew by nearly two meters

Mont Blanc, the highest peak in Western Europe, now measures 4,807.47 meters after the snow and ice layer at its summit grew by nearly two meters compared with the 2023 measurement. The result was announced Wednesday by French experts, who warn that hasty conclusions should not be drawn from a single measurement.

Geodesy specialists periodically climb the peak on the border between France and Italy to monitor its evolution. Mont Blanc’s height has varied significantly over time, from approximately 4,805 meters in 2023 to nearly 4,811 meters in 2007.

The variations are influenced by the accumulation and redistribution of snow, precipitation, wind, temperatures, and weather conditions in the preceding months. Experts noted that 2026 was particularly dry, while the zero-degree Celsius level rose, during heatwave episodes, to above 5,000 meters.

Using ground-penetrating radar, researchers also measured the rock beneath the ice cap, now estimated at 4,789.4 meters. The data will be analyzed over time to determine the massif’s actual evolution in the context of climate change.