The rivers would fill up in the Darling River if they stopped using the water to irrigate the cotton farms and stopped allowing large mines to drain the river for mining purposes.
The river is not in trouble because of the drought, it is all Govt policy and allowing cotton farmers and miners to take far more water than the environment produces.
The problem of the drought is also linked to poor farming practices in QLD and NSW, where they are farming the land like the British did 100 years ago rather than look at the semi arid regions and do something that actually is workable.
BUT>..... because the Australia has plundered the land, destroyed the forests and drained the rivers, what was once a vibrant region is rapidly becoming a desert.
They are calling it a drought, but at some stage they will have to admit it isnt a drought, it is the new climate.
And to think it was avoidable.
With more heat in the region, it will only get worse.
http://soilsystems.com.au/desertification-australia-and-the-perfect-storm-its-time-to-implement-an-australian-sovereign-wealth-fund/