image: By September 2025, the Claridenfirn Glacier (GL) had melted entirely, with no snow cover remaining. Credit: Matthias Huss / VAW / ETH Zurich Despite being the designated United Nations International Year of Glacier Preservation, Switzerland continued to experience intensive glacier retreat in 2025. A snow-poor winter, followed by extreme heat waves in June, caused glaciers to come close to matching the severe losses recorded in 2022. By early July, winter snow reserves had already