If Arctic sea water is generally -1.8C, while the freezing point of water is 0C, why is the Arctic not fully frozen?

Question

If Arctic sea water is generally -1.8C, while the freezing point of water is 0C, why is the Arctic not fully frozen?

In: Earth Science

Answer 1

“Melting point of ice” is actually a more accurate way of stating 0 Celsius, as plenty of reasons why liquid water can exist at that temp or colder. Ever see one of those movies of flash freezing water bottles…like this: https://youtu.be/1EhKbHSy34w

That’s not because it coincidentally got to or below 0 Celsius right when the guy put it on camera and banged it, it was already colder than 0