Feasibility studies

The powers that (not) be want to do another feasibility study on the options for saving the Lower Lakes, the Coorong and perhaps the River Murray itself.
It seems to me that, by the time this is done, they will need a feasibility study to see whether the feasibility of the feasibility study is still feasible.
Nobody seems to have any answers - or they do not want to face the obvious answers. Should we stop growing rice and cotton in Australia? More than likely. If we want to grow more of our own food then the answer is certainly yes. Like the car industry in South Australia there are other interests at work here, not environmental interests.