GREG O'CONNOR: So I did take time to actually find out how these things actually work. It's quite interesting, because we either change the fuel or we put scrubbers, as the previous speaker talked about, to ensure—so how they work: it actually "sprays alkaline water into the vessel's exhaust, which removes the [sulphur] from … ships' engines and boiler exhaust gases." So it's not an inexpensive exercise to fit these, but "In a seawater system, the sea's natural alkalinity largely neutralises the results of [sulphur] removal before discharge" into the sea. I'm sure there'll be other speakers here who will mention these scrubbers, which are an important part of this bill, so now you need wonder no more, Madam Speaker, just what it is that is being referred to as we go through this. Again, as the chair of the very hard-working Transport and Infrastructure Committee, who will be considering this bill, I have no hesitation in commending this bill to the House.