Massive Fish Die-Off Plagues Australian River

Millions of fish have died in the Darling River near Menindee, Australia due to low oxygen levels in the water caused by hypoxia as floodwaters recede, exacerbated by the current heatwave. This is the third mass kill in the area in recent years, with up to a million fish dying in 2018 and 2019 due to poor water flow, quality, and sudden temperature changes. The incident has been attributed to drought and flooding in the region, and the environmental impact is said to be unfathomable.