Cruise secrets: Where does the waste from a cruise ship really go?

CRUISES see thousands of passengers and crew take to enormous cruise ships for weeks at a time. A huge amount of waste is produced during this time – but where does it all go? Is it simply dumped into the sea?

Link:

https://www.express.co.uk/travel/cruise/1069810/cruises-cruise-ship-waste-disposal-rubbish-management