Senator WATT (Queensland—Minister for the Environment and Water) (14:35): Thanks, Senator Duniam. I don't have figures to hand as to the budget impact of these matters, but, as I say— Senator Ruston: It's $23 billion. Senator Duniam interjecting— Senator WATT: Well, if you know the answer, I'm not sure why you are asking the question. It sounds like Senator Duniam has answered his own question. The PRESIDENT: Senator Duniam, second supplementary?