Senator CORMANN (Western Australia) (14:44): Mr President, I ask a supplementary question. Given that the WA Treasury modelling also found that the cost of production for Western Australian electricity generators and suppliers will increase by $230 million to $280 million a year and that it will be harder for Western Australia to export cleaner energy like LNG or to contribute to cleaner steel production through the export of magnetite, can the minister explain how the government's carbon tax will be good for the west or for the environment?