[Pseudoscience-is-malarkey (OP)]

?

[Zer0]

0°C?

But it will have to be at 0°C for a considerable amount of time for the Oceans to freeze up completely.

Not sure what will happen with geo thermal vents.
Even the warmth from the earth's core would be present.
Also Water Pressure would have to be Accounted for.
Plus the Insulation cover of the ice sheets floating above the Oceans.

Seems like it would have to get really a lot more cooler than just 0°C.

[alancalverd]

Needs to be a bit colder as the freezing point of sea water is around -2°C. However the surface might be covered with fresh water ice at 0°C.

[Bored chemist]

If you could chill all the "high ground" to 0C then eventually, all the water would end up there (and the salt would be left in the "ocean" basins.)

Obviously, because there's no possible mechanism for any of this, its just philosophy and Alan will despise it.

[alancalverd]

Despite the lack of any possible mechanism, there have been several ice ages, the Arctic ocean and a fair bit of the Southern ocean remain frozen, and there are bits of ancient salty seabed all over Australia.  Must be something wrong with physics - surely philosophy cannot lie!

[Zer0]

Pseudo...by Frozen did you mean just the Surface?
Or like Completely frozen all the way thru to the Bottom?

P.S. - You won't reply isn't it...lol

[remotemass]

Ocean water freezes just like freshwater, but at lower temperatures. Fresh water freezes at 32 degrees Fahrenheit but seawater freezes at about 28.4 degrees Fahrenheit, because of the salt in it. https://oceanservice.noaa.gov/facts/oceanfreeze.html

Formula:   (28.4°F − 32) × 5/9 = -2°C.

[Bored chemist]

Ocean water freezes just like freshwater, but at lower temperatures. Fresh water freezes at 32 degrees Fahrenheit but seawater freezes at about 28.4 degrees Fahrenheit, because of the salt in it. https://oceanservice.noaa.gov/facts/oceanfreeze.html

Formula:   (28.4°F − 32) × 5/9 = -2°C.

Would you like to list the people who read through the thread, but were not aware of that?

[GaryBrownIE]

I bet the main question would be when the freezing "apocalypse" will happen.

[alancalverd]

We can expect the temperature decline to begin in about 100 - 500 years and to continue for the next 100,000 years.

[Bored chemist]

We can expect the temperature decline to begin in about 100 - 500 years and to continue for the next 100,000 years.

Do you sell nuclear bomb shelters?

[alancalverd]

I have worked on their design and instrumentation but have no stock at present.

[GaryBrownIE]

Wow, it is possible in at least 100 years. It terrifies me...

[RamonMiles]

Needs to be a bit colder as the freezing point of sea water is around -2°C. However the surface might be covered with fresh water ice at 0°C. By the time of learning you get to face some difficulties so I suggest you take the  for doing the course and be a professional in your field.

[William Hardy]

-2 C since the freezing point of sea water is slightly low than that of water due to salt content. But this has to be throughout the entire Earth.