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cruise ships: how much, per second and per year

cruise ships · about 300 of them
sewage discharged, litres
3.8 billion
a year
120
a second
10 million
a day
passengers at sea right now
~600 000

about thirty million a year, a week each. a large ship burns about the fuel of a small town.

method EPA 2008 discharge assessment scaled to today's fleet; passenger numbers from CLIA; T&E 2019 for sulphur.

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