Climate Change Turns Mountains into Dominoes: Landslide Risk Rises from Nepal to the Alps

Recent disasters—a deadly event on the Nepal-Tibet border and a flash flood in La Bérarde in the French Alps—have highlighted a growing threat in high mountain areas. Experts warn that landslides, glaciers, rocks, and water are increasingly triggering each other in a chain reaction. Climate change is making these natural systems more fragile. As temperatures rise, once-stable mountain environments become more sensitive to sudden shifts. A rockfall can destabilize a glacier, which then releases water, causing a flood or landslide further down the valley. The same risks apply to Turkey’s high-altitude regions. Although the recent events occurred far apart, they point to a shared vulnerability. Mountain communities worldwide need to prepare for cascading disasters, where one event sets off another. This pattern is not random. Warmer air melts ice and snow faster, leaving slopes less supported. Heavy rain can then move loose rock and debris with greater force. The result is a more unpredictable and dangerous mountain landscape. For scientists and local authorities, the message is clear: monitoring only one hazard, such as a glacier or a river, is no longer enough. They must watch how these elements interact. As climate change continues, the chain reaction risk in high mountains is expected to rise.