The climate crisis is increasingly associated with extreme weather events, including floods and mudflows. In August 2026, catastrophic mudflows struck Nepal and China, causing at least a thousand deaths. These events, while not uncommon globally, have reached a particularly severe scale in Nepal. Scientists are working to identify high-risk areas and improve early warning systems to reduce the impact of such disasters. In Europe, similar but smaller events have occurred. For example, on May 28, 2025, the Birch Glacier in Switzerland collapsed, causing torrential flows that nearly destroyed the village of Blatten. Authorities had evacuated the village in advance, and the collapse involved a much smaller volume of ice and rock compared to the Nepal disaster. Earlier, on June 21, 2024, a massive mudflow and rock debris devastated the village of La Bérarde in the French Alps. All 100 residents were evacuated by helicopter, but the village remains abandoned. There are also historical examples, such as the 1892 disaster in the Saint-Gervais valley, which claimed 175 lives. These events can be triggered by various mechanisms, including glacial and periglacial risks. These risks are linked to the presence of glaciers, both current and historical, and can be activated by factors like glacier destabilization, water pockets within glaciers, glacial lakes, rock glaciers, and the thawing of permafrost. Climate change is accelerating the melting of glaciers and permafrost, increasing the likelihood of such events. To better anticipate these dangers, identifying high-risk areas is essential. In France, a "Prevention Plan for Glacial and Periglacial Risks" has been launched under the Ministry of Ecological Transition. This plan involves researchers and local authorities to improve research, map hazards, identify risk zones, and share information to raise public awareness. Risk reduction measures include draining glacial lakes and water pockets in high-risk areas to prevent sudden ruptures. Natural solutions, such as forests and wooden structures, can also help protect communities from rock falls. The impact of these events often depends on urbanization and land use; for instance, in remote areas like Alaska, similar events have had minimal effect on human populations.