Overview
- A roughly 2 square kilometre rock-and-ice failure on Aug. 26, 2026 turned into a fast debris-and-water flood that raced more than 20 kilometres down the Trishuli corridor and killed at least 1,300 people with thousands still missing.
- The WWA team used peer-reviewed methods to link long-term glacier thinning and upward shifts in the freezing line to weaker rock faces and more meltwater penetrating fractures in the mountain.
- Scientists say thawing mountain permafrost removed a key binding material that held fractured rock together, while record-warm July–August conditions likely increased meltwater that further destabilised the slope.
- Researchers note a 2015 magnitude-7.8 earthquake may have added fractures that made the slope more vulnerable, but they stop short of saying the collapse would have happened without climate-driven changes.
- The report warns the event exceeded existing early-warning and adaptation limits, raising urgent calls for expanded high-altitude monitoring, rapid emissions cuts, and fast, scaled loss-and-damage finance for Nepal’s recovery.