What is colder: Antarctica or the bottom of the ocean?

Antarctica (almost all of the time). The bottom of the ocean does not get much below the freezing temperature of water (0 C or 32 F). Intuitively, we know this because water at the bottom of the ocean does not turn into ice. read more

Antarctica by far. The bottom of the ocean is above freezing because water has the unique property of lowering its density as it gets within a few degrees of freezing - meaning the coldest water is more buoyant than slightly warmer water. read more

The major significance of Antarctic bottom water is that it is the coldest bottom water, giving it a significant influence on the movement of the world's oceans. Antarctic bottom water also has a high oxygen content relative to the rest of the oceans' deep waters. read more

First of all, it's cold at the bottom of the ocean, but not that cold, between 0 to 3 degrees Celcius (32-37F). Part of the reason why it's not that cold at the bottom of the ocean is because of earth's internal heating. read more