Odds are, jobs and unemployment are also Aussie concerns. Maybe they should concentrate on making renewable energy jobs -especially wind turbine, solar hot water units for households, and solar thermal systems.

They need a Feed-in Law something fierce.

And a tax on coal and natural gas EXPORTS would also do wonders, allowing this to fund governmental operations and also some energy conservation improvements -notably more tans for urban areas and to thus displace gasoline consumption.

After that, maybe some CO2 pollution taxes can be gradually be implemented.

Anyway, try this on for size:
http://wagengineering.blogspot.com/2010/08/ethics-and-morality-of-carbon-pricing.html

Nb41