Sea level
Swiss ice alone would raise the oceans by about a tenth of a millimetre. Glaciers worldwide are another story.
If all remaining Swiss glacier ice melted, about 43 km³ of ice, the oceans would rise by roughly 0.1 mm. (43 km³ of ice is about 38 km³ of water, spread over 361 million km² of ocean.)
But mountain glaciers everywhere are melting. They are responsible for around a quarter of today’s sea-level rise, and the oceans could rise by 0.5 to 1 m by 2100 depending on emissions. Switzerland is landlocked; many of the people affected are not.
Sources
Sources
- Huss, Linsbauer & Naegeli (2025). Swiss Glaciers. State, projections and significance. Swiss Academies Factsheets 20(2). doi.org/10.5281/zenodo.14866776
- GLAMOS (2026). Annual mass balance of Swiss glaciers in 2025/2026. doi.glamos.ch/pubs/annualrep/annualrep_2026.pdf