Senator IAN MACDONALD (Queensland) (14:45): My question is to the Minister— Senator Cameron interjecting— The PRESIDENT: Senator Cameron! Senator IAN MACDONALD: for Resources and Northern Australia, Senator Canavan, and I ask the minister if he could advise the Senate on any recent developments regarding northern Australia's water resources and how these can help unlock northern Australia's economic potential. And, further, for the assistance of the Labor Party— Senator Cameron interjecting— The PRESIDENT: Senator Cameron! Senator IAN MACDONALD: members, could he explain to the Senate, for Labor Party members' benefit, where northern Australia is? The PRESIDENT: I remind all senators: I have demanded silence during questions.