My question is to the Prime Minister. I refer to her statement yesterday:

It is simply wrong to suggest that the Treasury modelling of the government's Clean Energy Future program depends on the United States putting a price on carbon by 2016.

I also refer the Prime Minister to the government's own modelling, which says:

The modelling assumes comparable carbon pricing in other major economies from 2015-16 …

I ask: will the Prime Minister now admit what every Australian knows, that the failure of the United States or any comparable country to introduce an economy-wide carbon price means that her carbon tax will be an even bigger rip-off?