So here we have the practical challenge that comes with a good environmental step but it comes at a cost. It comes at a price. That's the trade-off that we have to make often in environmental matters—that doing the right thing does have a cost. And so in this case, the cost will be a higher impost on ships that are arriving and leaving New Zealand waters. The fuel that they use will be cleaner and more environmentally sound, and that's a good thing. But there will be a cost and the cost ultimately flows on to consumers and individuals and is yet a further impact on the cost of living. But that's a trade-off that we as a Parliament and we as a society are happy to make because the environmental benefits are in this case, I think, worthy of the trade-off. 