Water resources

Climate change affects the entire water cycle. Surface and underground waters are equally exposed to changes in water quantity and quality. This has direct repercussions on water balance and management.

Auf der rechten Seite befindet sich der Bergsee namens Lac d'Emosson. Im Vordergrund ist ein Staudamm und im Hintergrund sind Berge zu sehen.

Water availability in Switzerland will not change significantly by the end of the century.  However, precipitation will be distributed differently across the year and the quantity of water stored in snow and glaciers will fall due to the increase in temperature.  As a result, seasonal discharge distribution and thus seasonal water availability will change throughout almost the whole of Switzerland.

Impacts and measures

Risks and opportunities

Climate change increases the demand for water. At the same time, it is detrimental to both the amount of available water and water quality.

Eine junge Frau trinkt Wasser aus einem Glas.

Impact of climate change on water management

The changes in the water cycle will also have an impact on water management. As part of the Hydro-CH2018 project, literature reviews are currently being compiled on the following subjects.

Last modification 19.02.2021

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Federal Office for the Environment FOEN
Hydrology Division

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Priority themes: Hydrological principles of climate change

The core topic of the NCCS Hydro-CH2018 focusses on the water resources and their future development. The objective is to supply the necessary fundamental hydrological principles for adaptation.