Senator AYRES (New South Wales—Minister for Industry and Innovation and Minister for Science) (14:45): Thank you, Senator Grogan. It's a good opportunity to point out to the chamber that there are representatives from World's Youth for Climate Justice here in the chamber with us. They've been talking to senators and members. Young people— Senator McKim interjecting— The PRESIDENT: Order, Senator McKim! Senator McKim interjecting— The PRESIDENT: Minister Gallagher? Senator Gallagher: Senator McKim's interjections are disorderly, President, and he wasn't responding to you drawing him to your ruling, so I'm doing it on his behalf. The PRESIDENT: Senator McKim, I asked you earlier in question time to come to order. You were yelling more loudly than the minister, who is miked up and you are not. This is not a football crowd. It's Senate question time. Senator AYRES: It is pretty graceless, when young people are having a go, coming to the parliament and expressing their view to members of parliament, senators and ministers, to be howling down an acknowledgement from the government that it is a good thing. Young people get it. Our young people get the imperative about climate change and energy. They also understand the scale of the challenge that is in front of Australia after a decade of policy inaction, disinvestment and capital flight caused by those opposite when they were in government. We are setting about the task of building a new, low-cost and clean-energy-emission electricity system. There are all sorts of people who endorse this approach. It was endorsed, in fact, by a former leader of the government in the Senate and former Liberal finance minister, Secretary-General of the OECD Mathias Cormann, who said just this week: What is important for Australia, for countries around the world, is not to continue the debate about whether or not to pursue the net zero objective, but how to do it in the best possible way. Well, there you go. Over in the House of Representatives, it is the silly-billies Mr Joyce and all these other characters— The PRESIDENT: Senator Ayres, I cautioned you about the use of that term the other day and asked you to withdraw, so I'm going to ask you to withdraw again. Senator AYRES: I'm trying really hard to use something that's good-natured. I will absolutely follow your injunction. The PRESIDENT: That means you have to follow up with 'I withdraw'. Senator AYRES: Sorry! I withdraw, absolutely. We're just going to see more of it. We are going to see it clearly here. Senator Canavan's up and about. Maybe we will do that every week, too—every day, maybe. (Time expired) The PRESIDENT: Senator Grogan, a first supplementary?