A warming climate is destabilizing high-mountain landscapes, including the Alps and Nepal, increasing the risk of devastating floods. In Nepal, a build-up of water poses an immediate threat of another major flood event. Rising temperatures contribute to glacial melt, creating and expanding glacial lakes. These lakes, often held back by unstable moraines, are vulnerable to sudden outbursts, known as glacial lake outburst floods (GLOFs). The increasing frequency and intensity of these GLOFs are a direct consequence of climate change. Experts warn that this trend will continue, impacting communities downstream and necessitating improved early warning systems and preventative measures to mitigate the growing danger. The situation in Nepal highlights the global vulnerability of mountainous regions to climate-related disasters.