Documentary : Know Antarctica


Antarctica

Antarctica is Earth‘s southernmost continent, containing the geographic South Pole. It is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. At 14.0 million km2(5.4 million sq mi), it is the fifth-largest continent in area after AsiaAfricaNorth America, and South America. For comparison, Antarctica is nearly twice the size of Australia. About 98% of Antarctica is covered by ice that averages at least 1.9 kilometres (1.2 mi) in thickness, which extends to all but the northernmost reaches of the Antarctic Peninsula.

Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents. Antarctica is considered a desert, with annual precipitation of only 200 mm (8 inches) along the coast and far less inland. The temperature in Antarctica has reached −89 °C (−129 °F). There are no permanent human residents, but anywhere from 1,000 to 5,000 people reside throughout the year at the research stations scattered across the continent. Only cold-adapted organisms survive, including many types of algaebacteriafungiplantsprotista, and certain animals, such as mitesnematodespenguinsseals and tardigrades. Vegetation where it occurs is tundra.

Although myths and speculation about a Terra Australis (“Southern Land”) date back to antiquity, the Russian expedition of Fabian Gottlieb von Bellingshausen and Mikhail Lazarev on Vostok and Mirny first sighted a continental ice shelf in 1820. The continent, however, remained largely neglected for the rest of the 19th century because of its hostile environment, lack of resources, and isolation.

The Antarctic Treaty was signed in 1959 by 12 countries; to date, 49 countries have signed the treaty. The treaty prohibits military activities and mineral mining, prohibits nuclear explosions and nuclear waste disposal, supports scientific research, and protects the continent’s ecozone. Ongoing experiments are conducted by more than 4,000 scientists from many nations.


Bonus Documentary


Courtesy : Youtube : ExploreTravelWorldGeoff Head

4 thoughts on “Documentary : Know Antarctica

  1. I have been having glitches and my likes weren’t registering. I’ve no idea how long it’s been a problem. I just wanted you to know I am around and hope this stays registered. Smiles

    Like

    • We are getting your likes and so grateful about it. Every time we get a like we feel glad that the posts makes someone happy and it stays useful🙂

      Thank you for the kind words to let us know.

      Like

  2. Beautiful,but it’s too cold for me…

    Like

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