My question is to the Prime Minister. Does the Prime Minister deny that her own modelling shows the government will spend $3½ billion on buying foreign carbon credits in 2020? Does the Prime Minister deny that her own modelling shows that this will rise to $57 billion in 2010 terms or almost 1½ per cent of GDP by 2050, to be paid to foreign carbon traders? Given emissions in Australia will barely change over that period, is this not just all economic pain without environmental gain?