If you’re like most of us, every extra bit of space in your home or apartment is crammed with bags filled with dead fish. In case you’re not sure what to do with all those dead fish, here’s an idea: run a cruise ship on them! Yes, finally, thanks to some R&D from a line.

The line is Hurtigruten, who operates 17 cruise ships, specializing in Antarctic and Arctic cruises. By 2021 Hurtigruten plans to convert at least six of its vessels to run on biogas, which will be produced, in large part, from dead fish parts leftover from fishing and fish processing industries.

The biogas will then be liquified and used in place of the other fossil fuels the liners normally operate on.

The CEO of Hurtigruten, Daniel Skjeldam, has this to say about the fish-slurry fuels:

“Norway is a large shipping nation, but fishery and forestry are also large sectors. They create jobs and produce income, but they also produce a lot of waste products. The steady access to high volumes of organic waste gives the Nordic countries a unique position on the biogas market. We are pushing for more innovation, more investment. I believe we have just seen the beginning of what in a few years will be a huge sector.”

Biogas produced from organic wastes is primarily methane. of a number of cruise ships involving significant bio-waste producing sicknesses among passengers, a clever cruise line could harness the intestinal ejecta of sick passengers and convert that into fuel, creating a ship that is sort of fueled by its own all-you-can-eat shrimp buffets.