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The Himalayan warning and the blind spots in climate risk

A glacier in Tibet fell exactly as the science said it would, and no agency or institution was waiting for it: Indonesia is writing a climate change law with the same blind spot.

Althof Endawansa (The Jakarta Post)
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Jakarta
Tue, September 1, 2026

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Sludge and mud inundate damaged buildings and houses in a riverbank settlement near the Likhu River on Aug. 30, 2026, after deadly flash floods and mudslides struck Devighat village in Nuwakot district, Nepal. Sludge and mud inundate damaged buildings and houses in a riverbank settlement near the Likhu River on Aug. 30, 2026, after deadly flash floods and mudslides struck Devighat village in Nuwakot district, Nepal. (Reuters/Athit Perawongmetha)

S

hortly before 8:40 a.m. on Aug. 26, a wall of water tore through the Lhende Khola valley on the Tibetan side of the Nepal-China border. By afternoon on the following day, Nepal had recovered nearly 290 bodies and listed 826 people missing, more than 500 of them foreign visitors. China reported another 558 missing in Gyirong county. At least 19 bridges and roughly 40 kilometers of road were wiped out.

Early reports blamed an earthquake. Seismographs registered a sharp jolt, making it a reasonable assumption, just the wrong one. A glacier section had detached at roughly 5,200 meters and plunged 1,200 m into the valley. The tremor the instruments picked up was simply its impact.

What makes the tragedy relevant to Indonesia is not the ice. It is that every tool needed to see it coming already existed, yet monitoring it was nobody’s job.

Nepal’s glaciers are among the most thoroughly mapped hazards in the developing world. Scientists have cataloged and ranked some 3,624 glacial lakes across the Koshi, Gandaki and Karnali basins and flagged 47 as dangerous, 25 of which are inside Tibet.

The Aug. 26 flood originated from none of them. It was triggered by detached ice crashing down a mountain, a completely different failure mode that the existing inventory was never designed to detect.

The takeaway was then clear: Unchecked warming and ongoing construction were compounding risks in valleys where new projects were still being green-lit.

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Why did that knowledge change nothing? It was because a hazard must belong to someone before anyone will build defenses against it.

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