The PRESIDENT (15:50): I inform the Senate that at 8:30 this morning Senators Moore and Siewert each submitted a letter in accordance with standing order 75, proposing a matter of public importance. The question of which proposal would be submitted was determined by lot and, as a result, I inform the Senate that the following letter has been received from Senator Siewert: Pursuant to standing order 75, I propose that the following matter of public importance be submitted to the Senate for discussion: The Abbott Government's weak and dangerous carbon pollution reduction targets. Is the proposal supported? More than the number of senators required by the standing orders having risen in their places— I understand that informal arrangements have been made for today's debate allocating specific times to each of the speakers. With the concurrence of the Senate, I would ask the clerks to set the clock accordingly.