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Key findings in the 2021 State of the Environment report identify climate change as a threat to the Murray–Darling Basin's water resources.

Acid sulfate soils can pose a serious risk to the health of the plants, animals and communities of the Murray–Darling Basin especially during high risk periods such as droughts under low flows and water levels.

Salinity is the concentration of salt in the water or soil. Managing salinity is one of the biggest challenges in the Murray–Darling Basin.

A mass fish death is when many fish die suddenly and unexpectedly. It is more likely to happen in times of flood or drought.

Murray–Darling Basin Authority Chair Sir Angus Houston addresses the River reflections conference.

A massive turnaround in conditions has seen the volume of water in government-owned dams in the Murray–Darling Basin 2.5x higher than at the same time 2 years ago.

The Lower Darling was subject to tragic fish death events in December 2018 and January 2019. The large fish death events covered a 40 kilometre stretch of the Darling River, downstream of Menindee Lakes.

Dissolved organic carbon-rich water (blackwater) occurs naturally when floods wash large amounts of leaves, grass and other organic material off riverbanks and floodplains into waterways.

The climate of the Murray–Darling Basin is changing, with a warmer, drier future that includes more frequent droughts and extreme weather events.

Increasing community concern and passion for the banks of the Murray River has sparked a whole-of-river project looking at riverbank erosion, under the Murray–Darling Water and Environment Research Program.