Friday, December 12, 2008

Parched

I have been following John Quiggin's excellent blog lately. He was recently on a radio national program about the politics of water in Australia and the world. You can listen to the discussion here. Once again however, there was a gigantic elephant in the room called overpopulation that nobody wanted to talk about.

Only one of the speakers touched on it, and then only very briefly. In a closed economy (like planet Earth), demand for water -and indeed every natural resource- is driven by two things: per capita demand, and population. The bigger our population, the more we must constrain our lifestyles in the long term.

In discussions like these we often treat population levels as a given, but here in Australia we are doing everything we can to increase our population as fast as possible. At the same time, we seem completely unable to talk about the consequences for the environment and our enjoyment of life. Until we face up to this, and start including population as one half of the argument in any discussion about natural resources, we cannot hope to truly deal with the problem.

5 comments:

Tinos said...

Can't you just desalinate seawater? You can always build more power plants. I don't think water's a problem.

Hewhoblogs said...

Tinos displays his expert grasp of the situation.

Sam said...

Hi Tinos, yes we could just desalinate sea water. We have enough coal and uranium to feed power stations to support 21 million people for centuries, even it never rained on this continent again, we could indeed do that. There are two reasons we shouldn't:
It would be very expensive
It would be very polluting

Anonymous said...

But Sam, we also have enough energy for air conditioning to deal with any amount of global warming in our lifetimes, and enough uranium to spare to deal with anyone who objects to our choices enough to try crossing the radioactive desert to do something about it.

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