Nepal-China border disaster has killed hundreds and left thousands missing, exposing gaps in cross-border Himalayan disaster data sharing The August 26 disaster, triggered by a glacier collapse, has killed hundreds of people and left thousands missing, including hundreds of Indians, on Nepal-China border.Catch up quickNepali authorities said on Monday that 903 people had died and 4,247 remained missing, including 933 workers unaccounted for at hydropower project tunnels, according to Reuters.On the Chinese side, authorities in Gyirong County reported 16 dead and 546 missing as of Monday.Why it mattersThe floods have exposed a mismatch at the heart of Nepal-China disaster cooperation:…