More and more, mountain snow in the high-altitude region surrounding Mount Everest and the Himalayas is disappearing. Scientists measure and track the winter snow line – the elevation at and above which seasonal snow persists on top of glacial ice. Over time, this line has been creeping higher and higher in the region due to a combination of warmer and drier conditions. As a result, snow is becoming more sparse at lower elevations in the Himalayas and surrounding area. The change is visible in t