I would also accept "incinerator to replace [some of the] fossil fuel being burned by the ships anyway." This would also reduce the number of trips to delive

I would also accept "incinerator to replace [some of the] fossil fuel being burned by the ships anyway." This would also reduce the number of trips to deliver waste to shore, which has further energy and cost benefits. While numbers says that (if done done right) this could be greener, one challenge is that it doesn't feel greener. Decades of recycling PR has skewed our perception Probably you only incinerate the non-recyclable plastic. This is still >50% of the total catch by mass.