Impact of Climate Change on Avalanche Behavior in Switzerland by 2100

Climate change is expected to result in fewer overall avalanches in Switzerland but to increase the incidence of wet snow avalanches by 2100. Researchers emphasize that effective safety measures, such as closing ski resorts in at-risk zones, will be essential as the risk from these avalanches rises, particularly in light of anticipated temperature increases.

Climate change is projected to have a mixed impact on avalanche activity in Switzerland by the year 2100. According to a recent report from the WSL Institute for Snow and Avalanche Research (SLF), the overall frequency of avalanches is anticipated to decrease; however, the risk of wet snow avalanches is expected to rise significantly. The research indicates that as winter temperatures could warm by approximately five degrees Celsius, the higher snow line will lead to less frequent avalanches at lower elevations but may contribute to more substantial avalanches at higher altitudes, particularly during extreme snowfall events.

The study conducted by the WSL Institute for Snow and Avalanche Research underscores the complexities of climate change’s effects on mountain ecosystems. By assessing seven different locations across Switzerland, including high-altitude sites such as Weissfluhjoch and Zermatt, researchers have determined that while some types of avalanches may decrease, others will become more dangerous. This duality presents new challenges for safety in ski resorts and mountainous regions, particularly as the climate continues to evolve and weather patterns shift.

In summary, while overall avalanche activity in Switzerland is expected to decline due to rising temperatures, the increased likelihood of wet snow avalanches poses a new threat by 2100. This concerning development emphasizes the importance of effective safety measures, including the potential closure of ski resorts situated in high-risk areas. As climate-related changes continue to affect weather patterns, ongoing research and adaptation strategies will be crucial for mitigating these risks.

Original Source: www.swissinfo.ch