Yes, I think I'll answer the latter part first, and then we'll get to your energy question. But with regard to the culture, it is a fundamental change in culture, but is building on things that the leaders in the organization were kind of doing one-off or in pairs occasionally, anyway, and that is collaborating and coordinating, okay? And so that is the culture change, though, because the brands were fiercely independent in the past and even protected information from each other. And so it's absolutely a culture change. Now in terms of the fundamental changes in how we work or the scale of targets and that sort of thing, the reality is we just have scale. So with 78 million passenger cruise days, little tiny changes adds up -- add up to significant dollars, tens and tens of millions of dollars and hundreds of millions of dollars. And so while they're small changes, they yield big impact. And by working together, communicating, collaborating, there are so many arenas that the team has already pre-identified. And as I mentioned, we're in the process of sizing those and prioritizing them from a complexity, investment required, time to realization, all your normal things you would apply to prioritize projects and go after them. So there are significant opportunities. With regards to the energy, and I'll let David make a few comments as well, but first of all, I just want to say that, absolutely, the scrubber technology helps us mitigate a lot of the emission standard costs that were referred to earlier. And in fact, with the scrubber technology, we'll be well above the emission standards without having to burn, in many instances, the higher-grade fuel, which clearly will mitigate those costs. But I think David had a couple of other comments. Go ahead, David.