Glacier

A geologist reflects on the disaster and explains why rapid warming will make deadly glacial floods far more common.

Exclusive videos verified by The New York Times show the clearest view yet of the avalanche in northern Nepal near Tibet that sent a wall of water and mud coursing through river valleys below.

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

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