Senator BOB BROWN (Tasmania—Leader of the Australian Greens) (14:21): My question is also to Senator Wong in her capacity as Minister representing the Minister for Climate Change and Energy Efficiency. Is Mr Dick Warburton, the Chairman of Manufacturing Australia, also the climate adviser to Mr Abbott, the honourable Leader of the Opposition? As Mr Warburton said that he is now focused on the federal government's carbon tax and lobbying to delay that tax, is this the same Mr Warburton who, in 2009, said: The carbon tax is a much more transparent, much more direct, much more flexible type of system … And did he also say that business is quite happy to go ahead with a carbon tax? The PRESIDENT: Senator Wong, as you are representing the Minister for Climate Change and Energy Efficiency you only need to respond to those parts of the question that pertain to your portfolio. The other parts do not have to be responded to.