on plastic at home it's handy to do it large scale like this i think it's great for this. special one and i would be good if everyone took a moment to think it's terrible when people just check their plastic and paper bags there's something a bit missing in people who do that and here's much more of the city but the environment officer concedes that producing plastic waste is not a cruise ships primary environmental sin we try to control every possible way stream so we're looking not just at solid emissions not just our plastics we're also looking at fuel efficiency we're looking at waste water we're looking exhaust gases so it's there's several different ways. not just one thing and we're all the goal is to reduce everything as much as possible it's still difficult of course we're still making emissions are still there's still more things john prove as part of that multipronged approach to limit environmental damage to uses so called scrubbers a kind of filter to reduce emissions of sulfur dioxide and nitrogen oxides environmentalists