This cruise ship did not dump what you think it did
Cruise ships can undoubtedly dump and spread litter and pollution in the sea, but this picture exaggerates reality. This picture insinuated that this cruise ship dumped human waste in the ocean as it traveled across the ocean.
However, while this picture is accurate, the brown deposit around the ship is not human waste but engine fumes. The photographer took the picture just before the cruise ship dropped its anchor when it started its engines. The brown spots around the ship are sand and mud, not human waste.