Bloomin’ Ridiculous: Climate Change, Water Contamination and Algal Blooms in a Land Down Under

Climate and anthropogenic change, particularly agricultural runoff, increase blue-green algae/cyanobacteria blooms. This article researches cyanobacteria alert-level identification, management, risk communication in Lake Hume, Australia. Two methods, document content analysis, evidence contamination events communication, reflect water governance data management limitations. Results found that Hume had amber or red alerts for only one week, December 2021–December 2022. failed to prevent government tourism promotion of recreational usage, contravening authority alert advice. Lake-use restrictions lacked compliance enforcement. Events during vulnerable populations (children). Hume’s by the Murray–Darling Basin Authority restricted reproduced generic advice minimal outlets/time points. Geophysical signage address diversity needs (language, literacy, age, disabilities). No was residents with diseases exacerbated aerosolization. Despite WHO promoting cyanotoxin investigation, Australian research is absent international literature. Further, produce potentially carcinogenic microcystein. coexists census revealing cancer rates higher than national average a waterside town. The results demonstrate need incorporate robust public health assessments, into advocate legislation changes based on evidence-based reduce blooms runoff.