Nepal-Tibet floods: What happened, what caused them and who is missing?

On Wednesday, part of a glacier collapsed high in the Himalayas, triggering catastrophic flooding along the Nepal-Tibet border.At least 160 people have been confirmed dead overall, while nearly 1,500 people are missing across Nepal and China’s Tibet, including at least 800 foreign nationals.Recommended Stories list of 1 itemlist 1 of 1Rescuers search for survivors after Nepal–China floods kill at least 165end of listIn Nepal, 826 people are missing, including almost 600 foreigners, according to police and tourism officials. Across the border, Chinese state media reported that 558 people were missing in Tibet’s Gyirong County, including 260 foreign nationals.Here is what we know about what triggered the disaster, where the floods struck, and the risks facing the rapidly warming Himalayan region.What happened in Nepal?At about 8:40am local time (02:55 GMT) on Wednesday, flash floods and mudslides swept through mountainous areas along the Nepal-Tibet border, killing at least 157 people in Nepal and three in Tibet and leaving hundreds missing.A massive flood of water, mud and rocks swept through the Lhende Khola river valley, engulfing villages and destroying homes and critical infrast...