Glacial lakes and flood risk in the Hindu Kush‑HimalayaCEFR B1
12 Oct 2025
Adapted from Qian Sun, Global Voices • CC BY 3.0
Photo by Huzaifa Ginwala, Unsplash
The Hindu Kush‑Himalaya (HKH) region covers Afghanistan, Pakistan, Tajikistan, China, Nepal and India and holds large freshwater reserves in mountain glaciers. As temperatures rise, many glaciers are melting and forming new glacial lakes; some studies count upwards of 8,900 lakes. When a natural dam fails, a glacial lake outburst flood (GLOF) can send a sudden, powerful wave downstream and has caused deaths, infrastructure damage and displacement in India, Pakistan, Nepal and China.
Experts say better data, shared science and coordinated observation systems could improve early warnings, but political tensions and data secrecy complicate regional monitoring. Arun Bhakta Shrestha of ICIMOD notes that water data and disaster alerts are often treated as classified and that withheld information can delay evacuations.
China has advanced observation systems and strong glaciology research, yet many studies remain in domestic journals or government databases that are hard to access. Open US satellite data has helped research, but access and technical capacity vary across countries, and fieldwork can be expensive and slow.
Difficult words
- melting — The process of becoming liquid from solid.
- risks — Possibilities of harm or danger.
- inaccessible — Not able to be reached or used.
- infrastructure — Basic systems or structures needed for operation.
- mitigate — To lessen the seriousness of something.
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- How can countries improve cooperation regarding water management?
- What steps could be taken to enhance disaster preparedness?
- In what ways can language barriers affect international collaboration?
