Swiss glaciers lose 5.5% volume in 2025-26, second-worst on record

Swiss glaciers lost 5.5% of their ice volume in the 2025-26 hydrological year, the second-highest annual loss on record after 2022. The loss underscores accelerating climate-driven melt in the Alps, with implications for water supply, hydropower, and tourism. The report is based on official Swiss glacier monitoring data, though full seasonal context is not provided.