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> while a further 7,000 kilograms of treated urine were sitting in orbital storage tanks, waiting to be processed.

Is that a record for the biggest piss bottle ever made?

A two meter cubed volume would be sufficient to hold that much. I would guess that cruise ships store more urine than that, though presumably not separated from everything else humans dump into toilets.

With the qualification 'in orbit', I imagine it is.

I thought they just dumped it overboard but maybe there are some ethical cruises... maybe.

It's fine to dump sewage overboard if you're far enough from shore. Cruise ships treat it to some extent, but ultimately it all becomes fish food.

In the same way that every breath you take contains at least one atom-or-molecule of Caesar's last breath, every sip you take contains at least one atom-or-molecule of every cruise ship waste jettison. (Assuming sufficient worldwide diffusion time.)

It seems that in most ports they are required to hold and treat it (and, perhaps to a lesser extent, in inshore waters.) Fouling the places they take their customers to is ultimately bad for business.

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