Antarctica History, Map, Climate, & Facts

Mount Erebus on Ross Island is the world’s southernmost active volcano and erupts around 10 times each day. It was once believed that the lake had been sealed off for millions of years, but scientists now estimate its water is replaced by the slow melting and freezing of ice caps every 13,000 years. The lakes that lie at the base of the continental ice sheet occur mainly in the McMurdo Dry Valleys or various oases.

For legal purposes of the Antarctic Treaty, the arbitrary boundary of latitude 60° S is used, south of which lies the Antarctic Treaty Area. In addition, many tourists have visited Antarctica, which has underscored the value of scenic resources in the continent’s economic development. The treaty bound its members indefinitely, with a review of its prabhu365-nepal.com/ne provisions possible after 30 years. With the International Geophysical Year (IGY) in 1957–58, the present scale of scientific investigation of Antarctica began, and on December 1, 1959, the twelve countries that were active in Antarctica during the IGY signed the Antarctic Treaty. Governments mandated many early expeditions—whether ostensibly economic, scientific, or exploratory in character—to make territorial claims.

• All commercial whaling is banned in the zone, though Japan has continued to hunt whales in the area, ostensibly for research purposes.
• Argentina, Australia, Chile, and Russia also have a large scientific presence on Antarctica.
• The claims by Britain, Australia, New Zealand, France, and Norway do not overlap and are recognised by each other.
• A combination of freezing temperatures, poor soil quality, and a lack of moisture and sunlight inhibit plant growth, causing low species diversity and limited distribution.
• On the opposite side, Endurance would sail through the Weddell Sea to reach the continent.
• Various other bird species visit the ocean around Antarctica, including some that normally reside in the Arctic.

What’s notable about Antarctica?

In 2017, there were more than 4,400 scientists undertaking research in Antarctica, a number that fell to just over 1,100 in the winter. The treaty set aside Antarctica as a scientific preserve and established freedom of scientific investigation and environmental protection. Antarctic English, a distinct variety of the English language, has been found to be spoken by people living on Antarctica and the subantarctic islands. Military personnel or equipment are permitted only for scientific research or other peaceful purposes. Emilio Marcos Palma was the first person born south of the 60th parallel south and the first to be born on the Antarctic mainland at the Esperanza Base of the Argentine Army, on 7 January 1978. During the whaling era, which lasted until 1966, the population of the island varied from over 1,000 in the summer (over 2,000 in some years) to some 200 in the winter.

Do any plants grow in Antarctica?

The Antarctic fur seal was very heavily hunted in the 18th and 19th centuries for its pelt by seal hunters from the United States and the United Kingdom. Some species of marine animals exist and rely, directly or indirectly, on phytoplankton. Most species in Antarctica seem to be the descendants of species that lived there millions of years ago. The peripheral areas of Antarctica, especially the Antarctic Peninsula, are then subjected to higher temperatures, which accelerate the melting of the ice.

These ecosystems may harbor novel species that have remained concealed for centuries, sustained by nutrient-bearing ocean currents. Researchers uncovered ecosystems unexpectedly rich in large corals, ancient sponges, icefish, giant sea spiders, and even octopuses at depths of up to 1,300 metres (4,300 ft). In January 2025, the detachment of the massive iceberg A-84 (comparable in size to the city of Chicago) from the George VI Ice Shelf provided a rare opportunity to explore the seafloor beneath floating ice shelves using robotic submersibles. Factors that may aid in their distribution include temperature differences between the deep ocean at the poles and the equator of no more than 5 °C (9 °F) and the major current systems or marine conveyor belts which are able to transport eggs and larva. The research found that more than 235 marine organisms live in both polar regions, having bridged the gap of 12,000 km (7,456 mi). The emperor penguin is the only penguin that breeds during the winter in Antarctica; it and the Adélie penguin breed farther south than any other penguin.