Research 16.05.2025
Spring in mountains starting earlier and earlier
Spring in mountains starting earlier and earlier

SLF data shows plant growth in mountain meadows starting earlier – this is a result of climate change in the Alps.

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Research 05.05.2025
Photovoltaic energy: optimising yield in winter
Photovoltaic energy: optimising yield in winter

SLF researcher Anja Mödl is investigating how snow-covered terrain reflects sunlight in order to optimise the energy yield of PV systems.

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Research 29.04.2025
Measuring at 2,536 metres: tracking winter changes
Measuring at 2,536 metres: tracking winter changes

Around 90 years of SLF snow measurements on the Weissfluhjoch provide key data for climate research, avalanche warnings and water supply.

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Events 03.04.2025
Investigating the unthinkable
Investigating the unthinkable

How can we prepare for something unprecedented? WSL has investigated the effects of extreme events and how to deal with them.

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Research for people and the environment in a changing world

NEWS

Logbook
22.05.2025

In this logbook entry, secondary school student Mira Lange reports on her impressions after three exciting weeks at the SLF.

Research
20.05.2025

Our experts answer the most frequently asked questions about mountain hazards.

Institutional
20.03.2025

A new WSL strategy, SNSF funding for two major projects, and a new director: WSL's highlights of 2024.

Research
18.03.2025

Climate change is visibly affecting the forest, as shown by the 2025 Forest Report published by the FOEN and WSL.

Services and products
11.03.2025

A new design, more functionality and clarity and extra, updated learning content: introducing the revamped White Risk app for snow tourism.

Snow and avalanches
10.03.2025

Little snow at low, lots at high altitudes, above-average accident figures - the 2023/24 winter report is here. (only in German and French)

AvaBlog

Our experts analyze the avalanche situation.
19 May 2025

current AvaBlog (in German)
current AvaBlog (in French)