This HAS to be a troll post. The cost of cleanup should not exceed the benefit of cleanup, or it is definitionally not cleanup. The societal benefit of cruise s

This HAS to be a troll post. The cost of cleanup should not exceed the benefit of cleanup, or it is definitionally not cleanup. The societal benefit of cruise ships is not measured in improvements to the environment, so it's harder to make a direct comparison and say if they're worth it overall. In any case, these are totally orthogonal operations. Both should be optimized.