Senator BOSWELL (Queensland) (14:27): Mr President, I ask a supplementary question. I thank the minister for that. I refer the minister to Paul Howes' comments in 2011 that the Australian Workers Union's support of a carbon tax would go if it cost a single Australian job. That is his quote. Should unions not support the repeal of the carbon tax? What impact will a delay in the repeal of the carbon tax have on the blue-collar workers that Mr Howes represents?