Glacial Changes in Switzerland

In recent years, Switzerland’s glaciers have experienced significant changes due to climate variations. Rising temperatures and reduced snowfall have led to the thinning of ice in many prominent glaciers. These changes have far-reaching impacts on the region’s environment and geology.

Glacial Retreat and Its Effects

During the last winter, the winter glaciers receded to the level of the peaks. As a result, the ice thickness in some glaciers, such as the Claridenfirn in the canton of Glarus, Plaine Morte in the canton of Bern, and Silvretta in the canton of Grisons, decreased by more than two meters. Meanwhile, glaciers in the southern canton of Valais, such as Allalin and Findel, experienced a smaller loss of about one meter.

The impact of climate change on glaciers is not limited to ice loss; it also affects mountain stability, increasing the risk of avalanches and rockslides, as seen in the Lötschental Valley.

Reduced Snowfall and Its Impact on Glaciers

The winter of 2024/2025 saw a significant decrease in snowfall due to reduced precipitation and rising temperatures, making it the third warmest winter since records began. This led to a shallow snow depth in many areas, especially in parts of northern and central Grisons.

Snow depth decreased by about 13% when comparing the snow depth at the end of April to the period from 2010 to 2020. Additionally, June recorded the second-highest temperatures, causing rapid snowmelt in high-altitude areas.

The Role of Scientific Institutions in Monitoring Changes

Numerous Swiss institutions play a crucial role in monitoring glacial changes. The Swiss Commission for Cryosphere Observation documents these changes and coordinates long-term monitoring networks for ice, snow, and permafrost.

The Swiss Academy of Sciences (SCNAT) is part of these efforts, comprising a network of 35,000 experts working to promote science in society and foster dialogue between science and the community.

Conclusion

The impact of climate change is evident in the retreat of glaciers in Switzerland, posing a threat to mountain environmental stability and increasing the risk of natural disasters. Swiss scientific institutions strive to monitor these changes and provide necessary recommendations to address their future impacts.