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Southern Ocean

Dec. 22, 2025

Recently, scientists have found the Southern Ocean mitigates global surface warming by taking up a large portion of the carbon released by human activities.

About Southern Ocean:

  • The Southern Ocean is also known as the Antarctic Ocean, is the fourth-largest ocean by surface area.
  • The International Hydrographic Organization describes the Southern Ocean as the World Ocean’s southernmost portion.
  • It is located on the lower end of the Pacific, Atlantic, and Indian Ocean and includes the tributary seas around the Antarctic region. 
  • It is known for its strong winds, intense storms, dramatic seasonal changes and cold temperatures.
  • It is dominated by the Antarctic Circumpolar Current (ACC) which is the longest, strongest, deepest-reaching current on earth. 
  • Formation: It was formed when Antarctica and South America drifted apart, creating the Drake Passage.
  • Biodiversity: Powerful currents, cold temperatures and nutrient and oxygen-rich waters make the Southern Ocean one of the most productive marine ecosystems on Earth.
  • Role of Southern Ocean:
    • It plays an important role in the circulation of water around the globe.
    • It also plays a key role in regulating the earth’s climate through its currents, seasonal sea ice and by absorbing heat and carbon dioxide from the atmosphere.

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