Mr BILLSON (Dunkley) (14:16): My question is to the Treasurer. I refer the Treasurer to this electricity bill from Pitliangas Foods that shows its off-peak power has increased by 83 per cent as a direct result of the carbon tax that has driven up their entire bill by more than the government's predicted 10 per cent. Given that businesses and families are being hit with carbon tax increases above the government's predicted 10 per cent increase, why won't the government agree to urgently revise the modelling behind the world's largest carbon tax?