Mr ABBOTT (Warringah—Leader of the Opposition) (14:18): My question is to the Prime Minister. I refer her to her words of a few moments ago in question time when she said: It is simply wrong to suggest that the Treasury modelling of the government's Clean Energy Future program depends upon the United States putting a price on carbon by 2016. I also refer her to this statement from chapter 5 of the modelling document: The modelling assumes comparable carbon pricing in other major economies from 2015-16 … My question is: since when did the US cease to be a major economy—or is she just misleading the parliament?