Anyone that has had an opportunity to spend any time on a maritime vessel—and I haven't had much time on one, but I do remember a visit not so many years ago, in Auckland, to the Ports of Auckland and having a look at a container vessel. What surprised me was not only the remarkable efficiency of containerised shipping, which has largely transformed international shipping in my lifetime, but that the efficiency that comes with containerised shipping, frankly, wasn't being matched by the propulsion methods of the vessels that are carrying these containers around the world. In many respects, much of what has occurred for far too many years in terms of the propulsion fuel used to fuel shipping all around the globe has been less than adequate. It's not been a best practice by any manner or means, and it's something that, I think, collectively, as not only New Zealanders but citizens of the world, we can probably hang our heads in shame about and say that these are matters that should have been addressed many years ago. 