Nepal’s flash floods show the devastating power of ‘cascading hazards’

A catastrophic flash flood has struck northern Nepal on the Tibetan border, killing at least 157 people and leaving hundreds missing, including at least 34 Australians. The death toll is expected to rise. Foreign tourists are among those feared dead or missing. Nepal’s tourism ministry reported 403 tourists unaccounted for, including 341 foreign nationals. Footage shows torrents of mud and debris sweeping through settlements and carrying buildings and vehicles with them. Early evidence…