Discuss the increasing frequency of Glacial Lake Outburst Floods (GLOFs) in the Himalayas and suggest a framework for regional (India-Nepal-China) early warning cooperation.

A GLOF occurs when a moraine- or ice-dammed glacial lake breaches suddenly, sending a destructive surge of water, ice and debris downstream. With Hindu Kush Himalayan glaciers melting about 65% faster in 2011–2020 than in the preceding decade and some 200 lakes rated dangerous [3], such floods are, in the UN's words, becoming the region's "new normal" [2].

Why GLOF frequency is rising

• Accelerated cryosphere loss: warming has made changes to HKH glaciers, snow and permafrost "unprecedented and largely irreversible", expanding lake number and volume [3].
• Weak natural dams: moraine dams and thawing permafrost slopes fail easily; the August 2026 Nepal disaster began as an ice-rock-mud collapse near the Nepal-China border [2].
• Cascading hazards: GLOFs combine with landslides and cloudbursts in the same catchment, multiplying damage [3].
• Rising exposure: hydropower projects, highways and border trade posts sit directly in valley floors, so a single surge along the Trishuli killed over 900 people and left 4,200 missing [1].
• Transboundary reach: the 2026 flood struck both Nepal and Tibet, and relief needs spanned 65,000 people needing water and sanitation support [1].

A framework for India-Nepal-China cooperation

• Shared basin inventory: a joint Koshi-Gandak-Trishuli glacial lake atlas, updated by satellite monitoring, using ICIMOD as the technical secretariat [3].
• Automated telemetry and alerts: upstream lake-level and seismic sensors feeding cross-border alerts, on the model of India's National GLOF Risk Mitigation Programme [4].
• Data-sharing protocol: a standing agreement for real-time hydrological data, extending existing India-Nepal river arrangements to Chinese upstream reaches.
• Joint response drills: pre-positioned NDRF-style teams and mountain last-mile logistics, aligned with Sendai Framework Priority 4 on preparedness [5].

GLOFs are a climate-driven, borderless hazard that no single state can forecast alone. Institutionalising shared monitoring, open data and joint drills would convert reactive relief into anticipatory action, advancing both the Sendai targets and India's neighbourhood-first commitment to a resilient Himalaya.