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Disaster Experts Say Nepal Glacier Collapse Was Difficult to Predict

Given the challenges in forecasting and detecting such calamities, researchers advised banning construction on floodplains and marking out clear evacuation routes.

© Atul Loke for The New York Times

The widened channel of the Bhote Koshi River in Nepal on Thursday after the flash flooding. Most monitoring and early-warning systems for glacial hazards focus on a specific area of risk.
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Disaster Experts Say Nepal Glacier Collapse Was Difficult to Predict

Given the challenges in forecasting and detecting such calamities, researchers advised banning construction on floodplains and marking out clear evacuation routes.

© Atul Loke for The New York Times

The widened channel of the Bhote Koshi River in Nepal on Thursday after the flash flooding. Most monitoring and early-warning systems for glacial hazards focus on a specific area of risk.
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Climate Change Raises Risk of Disasters Like Nepal Floods

Glaciers and permafrost in the Himalayas are melting faster as temperatures rise, though scientists are still studying the exact causes of this week’s landslide.

© Atul Loke for The New York Times

Mud-laden water and debris surges through the widened channel of the Bhotekoshi River in the northern Rasuwa district of Nepal, on Thursday.
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Survivors of Nepal Flood Left in Stunned Disbelief: ‘They All Died, and I Lived’

A visit near the border with Tibet laid bare the effects of a swollen river’s furious speed. Miles of devastation were left behind in a flash flood that killed more than 300.

Residents waiting to be airlifted by helicopter in the Rasuwa district of Nepal.
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Speed of Nepal’s Flash Floods Likely Overwhelmed Warning System, Experts Say

Scientists and disaster response researchers said Nepal’s early flood warning system relied on a conventional network of river gauges in this remote region.

© Ezra Acayan/Getty Images

Damage following flash floods in Trishuli, Nepal.
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Photos: A Deadly Flood Tears Through Nepal and Tibet

An ice avalanche that started high in the Himalayas tumbled thousands of feet, releasing vast amounts of energy that pulverized the ice into a significant volume of flood water.

© Navesh Chitrakar/Reuters

An aerial view on Thursday of buildings partly submerged in muddy water along a riverside after a flash flood at Trishuli Bazaar in the Nuwakot district of Nepal.
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