Thanks to a combination of continued drought and the long-term increase in temperatures, exacerbated by land-use changes such as increased use of farm dams, inflows to the Murray-Darling system have hit a new record low
It will take quite a few years of above-average rainfall to restore the system to anything like the pre-drought situation and there is, so far, no suggestion that we are going to see this. On the contrary, the reverse is more likely, both in the short run and the long run.
A lot of my work with the Risk and Sustainable Management Group deals with adaptation to climate change in the Basin. There’s quite a bit of scope for this, but if inflows fall as far as the most likely climate scenarios project over the next century, irrigated agriculture will cease to be feasible.