A closer look
That all-you-can-eat midnight buffet eventually has to go somewhere. A massive modern cruise ship acts as a floating city for thousands of vacationers, resulting in the production of astronomical amounts of human waste. According to environmental organizations, a single ship produces over 210,000 gallons of sewage in just seven days. While international maritime law requires ships to treat this blackwater before dumping it into the ocean, the sheer volume of organic material being blasted into the sea makes that sunset cruise slightly less romantic.
