Mountain areas

Key messages

European mountain regions are among the areas most affected by climate change. By the end of the century, profound physical transformations are projected across mountain landscapes, including substantial glacier mass loss, reduced snow cover, shifting ecosystems and altered hydrological regimes. These changes will extend beyond high-altitude environments, affecting foothills, valleys and floodplains.
Strengthening climate resilience in mountain regions requires adaptation across multiple sectors, particularly water management, agriculture, forestry and tourism. Integrated adaptation approaches are essential to address the interconnected challenges facing mountain communities and ecosystems.
The EU provides a range of funding opportunities to support climate change adaptation and sustainable development in mountain regions. Instruments such as the European Regional Development Fund, the European Social Fund Plus and the European Agricultural Fund for Rural Development can support investments in resilient infrastructure, ecosystem restoration, innovation, employment and rural development.

Why climate change adaptation matters for the Mountain areas

Climate change is already reshaping Europe's mountain regions, which are widely recognised as climate-sensitive environments. By the end of the century, significant physical transformations are expected across European mountain systems. Glaciers are projected to undergo substantial and, in many cases, irreversible mass loss. Climate change will also affect lower-elevation mountain areas, foothills and downstream floodplains, with far-reaching implications for water resources, agriculture, tourism, ecosystems and human health.

Mountain regions are characterised by complex topography and strong variations in climatic conditions over relatively short distances. As a result, climate impacts often differ considerably across elevations and localities. Rising temperatures and changing precipitation patterns are expected to shift seasonal snowlines to higher altitudes, reduce snow cover duration and shorten winter seasons. These changes will affect water storage and availability, as well as winter tourism activities that depend on reliable snow conditions.

Climate change is also expected to drive significant ecological shifts. Tree lines are projected to move upslope, while forest composition and distribution may change across lower and mid-elevation areas. These changes can affect biodiversity, ecosystem services and the resilience of mountain landscapes to climate-related disturbances.

In mountain regions with extensive high-altitude ranges, such as the Alps, climate change is altering hydrological cycles and water balances. These changes have implications for hydropower generation, water supply, urban drainage systems and inland navigation. At the same time, the frequency and intensity of water-related hazards are expected to increase, including floods, debris flows and landslides.

Extreme precipitation events and associated slope instability represent a growing concern for mountain communities and infrastructure. Landslides and other cascading hazards can disrupt transport networks, damage critical infrastructure and generate broader socio-economic impacts beyond the affected areas. The first European Climate Risk Assessment highlights the increasing importance of addressing these interconnected risks through proactive adaptation measures that strengthen the resilience of mountain regions and the communities that depend on them.