35 million people and no water (click here)

How can our politicians and the Prime Minister seriously consider that a "Big Australia" is desirable.
Even Kevin Rudd in question time agreed that we are one of the driest and hottest continents on earth.
Already there are severe water restrictions in many of our cities and we only have a population of 22 million.
How can we possibly support 35 million people without further reducing our standard of living and even risk not having the ability to grow enough food to feed ourselves.
Irrigation should surely not be the way, the rivers are already dying and creating "water wars."
The Lower Lakes in South Australia at the mouth of the Murray River, are becoming toxic battery acid as they dry out. People interstate would be shocked to see the state of the Lower Murray.
If our Prime Minister is serious about population growth, and he genuinely seems excited about that prospect, he had better tell us all where the water is coming from. Or are we to expect even more severe water restrictions and lowering of our standard of living.