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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.

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.

Water in the River Murray system is shared between New South Wales, Victoria and South Australia.

The Murray–Darling Basin has a highly variable climate, with conditions differing each year and across regions. Planning for wet and dry conditions is a major challenge for river operators, water resource managers and the community.

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.

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.

The Murray–Darling Basin Authority met on 8 February 2022 by video teleconference. The meeting was chaired by Sir Angus Houston with all members present.

The Murray–Darling Basin Authority has a shutdown period starting from close of business Friday December 2021 to Monday 3 January 2022 inclusive.