WorldHow a Himalayan avalanche unleashed destruction across Nepal

Two weeks ago, floods swept through Himalayan communities after part of Langtang Lirung mountain and the glacier above it collapsed. Millions of cubic metres of rock and ice plunged more than a kilometre into the valley, producing a magnitude 5.2 tremor. The debris raced over 14 kilometres in seven minutes toward the China-Nepal border crossing and obliterated it.