What is the coldest part of the ocean?

“Antarctic bottom water” is the coldest, saltiest water on the planet. These waters play a crucial role in the ocean's ability to act as a buffer against climate change by absorbing excess heat and human-caused carbon pollution. They also circulate nutrients across the ocean.



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The water was exceptionally cold, averaging around 28°F (-2°C) when the Titanic sank. These freezing temperatures greatly affected the passengers and crew in the shipwreck, as hypothermia quickly set in for those exposed to the water.

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The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. The ocean may also take on green, red, or other hues as light bounces off of floating sediments and particles in the water.

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Had the Titanic sank in warm water, most of those in the water would have survived. Almost all had life jackets on, and the lifeboat passengers were rescued only a couple of hours after the ship sank. Passengers of sunken cruise ships can't survive indefinitely though unless the water is tropical.

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