Australian Prime Minister Julia Gillard
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Australian PM Julia Gillard presents carbon tax bill

Australian Prime Minister Julia Gillard has presented her bill for a controversial carbon tax to parliament.

The legislation would force about 500 of the biggest polluters to pay for each tonne of carbon dioxide they emit.

The tax is central to the government's strategy to combat climate change, but the opposition say it will cause job losses and raise the cost of living.

Duncan Kennedy reports.

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