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137-727: Elephant Island is an ice-covered, mountainous island off the coast of Antarctica in the outer reaches of the South Shetland Islands , in the Southern Ocean . The island is situated 245 kilometres (152 miles) north-northeast of the tip of the Antarctic Peninsula , 1,253 kilometres (779 miles) west-southwest of South Georgia , 935 kilometres (581 miles) south of the Falkland Islands , and 885 kilometres (550 miles) southeast of Cape Horn . It

274-610: A moratorium on commercial whaling of great whales beginning in the 1985–86 season. Since 1992, the IWC's Scientific Committee has requested that it be allowed to give quota proposals for some whale stocks, but this has so far been refused by the Plenary Committee. At the 2010 meeting in Morocco, representatives of the 88 member states discussed whether to lift the 24-year ban on commercial whaling. Japan, Norway and Iceland urged

411-412: A 1,300 km (800 mi) voyage in the lifeboat James Caird beginning on Easter Monday, April 24, 1916, and arriving at South Georgia 16 days later. His second-in-command, Frank Wild , was left in charge of the remaining party on Elephant Island, waiting for Shackleton's return with a rescue ship. There was much work for the stranded men. Because the island had no natural shelter, they constructed

548-410: A Russian expedition led by Fabian Gottlieb von Bellingshausen and Mikhail Lazarev . The decades that followed saw further exploration by French, American, and British expeditions. The first confirmed landing was by a Norwegian team in 1895. In the early 20th century, there were a few expeditions into the interior of the continent. British explorers Robert Falcon Scott and Ernest Shackleton were

685-475: A boat was pulled approximately 120 km away towards Timor (see Nantucket sleighride ), while in another case, the hunted whale capsized the boat and forced the fishermen to swim for 12 hours back to the shore. When the commercial whaling moratorium was introduced by the IWC in 1982, Japan lodged an official objection. However, in response to US threats to cut Japan's fishing quota in US territorial waters under

822-407: A circumvention of the moratorium, Iceland ceased whaling in 1989. Following the IWC's 1991 refusal to accept its Scientific Committee's recommendation to allow sustainable commercial whaling, Iceland left the IWC in 1992. Iceland rejoined the IWC in 2002 with a reservation to the moratorium. Iceland presented a feasibility study to the 2003 IWC meeting for catches in 2003 and 2004. The primary aim of

959-527: A few blue-ice areas , the wind and sublimation remove more snow than is accumulated by precipitation. In the dry valleys, the same effect occurs over a rock base, leading to a barren and desiccated landscape. Antarctica is colder than the Arctic region, as much of Antarctica is over 3,000 m (9,800 ft) above sea level, where air temperatures are colder. The relative warmth of the Arctic Ocean

1096-569: A few others the two business models exist in an uneasy tension. The live capture of cetaceans for display in aquaria (e.g., captive killer whales ) continues. Whaling began in prehistoric times in coastal waters. The earliest depictions of whaling are the Neolithic Bangudae Petroglyphs in Korea, which may date back to 6000 BC. These images are the earliest evidence for whaling. Although prehistoric hunting and gathering

1233-461: A group of local craftsmen clan called ata molã, and the fishermen will mourn the "death" of their ships for two months. These days, the Lamalerans use a motor engine to power their boats; however, their tradition dictates that once a whale has been caught, fishermen will have to row their boats and the whale back to the shore. The traditional practices made whaling a dangerous hunt. In one case,

1370-525: A mild climate. West Antarctica was partially in the Northern Hemisphere , and during the time, large amounts of sandstones , limestones , and shales were deposited. East Antarctica was at the equator, where seafloor invertebrates and trilobites flourished in the tropical seas. By the start of the Devonian period (416  Ma ), Gondwana was in more southern latitudes, and the climate

1507-457: A native bacterial community within the subterranean water body of Lake Vostok . The existence of life there is thought to strengthen the argument for the possibility of life on Jupiter 's moon Europa , which may have water beneath its water-ice crust. There exists a community of extremophile bacteria in the highly alkaline waters of Lake Untersee . The prevalence of highly resilient creatures in such inhospitable areas could further bolster

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1644-701: A number of mountain ranges in the region, the most prominent being the Ellsworth Mountains. The presence of the West Antarctic Rift System has resulted in volcanism along the border between West and East Antarctica, as well as the creation of the Transantarctic Mountains. East Antarctica is geologically varied. Its formation began during the Archean Eon (4,000 Ma–2,500 Ma), and stopped during

1781-566: A part of it". Whaling Archaeological evidence suggests the earliest known forms of whaling date to at least 3000 BC, practiced by the Inuit and other peoples in the North Atlantic and North Pacific. Coastal communities around the world have long histories of subsistence use of cetaceans , by dolphin drive hunting and by harvesting drift whales . Widespread commercial whaling emerged with organized fleets of whaling ships in

1918-660: A population of 103,000 minkes in the northeast Atlantic. With respect to the populations of Antarctic minke whales, as of January 2010, the IWC states that it is "unable to provide reliable estimates at the present time" and that a "major review is underway by the Scientific Committee." Whale oil is used little today, and modern whaling is primarily done for food: for pets, fur farms, sled dogs and humans, and for making carvings of tusks, teeth and vertebrae. Both meat and blubber ( muktuk ) are eaten from narwhals, belugas and bowheads. From commercially hunted minkes, meat

2055-415: A shack and wind blocks from their remaining two lifeboats and pieces of canvas tents. Blubber lamps were used for lighting. They hunted for penguins and seals, neither of which were plentiful in autumn or winter. Shackleton had instructed Wild to depart with the remaining crew for Deception Island if he did not return to rescue them by the beginning of summer. After four and a half months, on August 30, 1916,

2192-498: A ship, the tug Yelcho , from Punta Arenas , Chile , with Shackleton on board and commanded by Luis Pardo , arrived and rescued the men. A Joint Services Expedition led by Commander Malcolm Burley was dropped off on Elephant Island by HMS  Endurance . The party then spent six months carrying out a survey of the island and other scientific research for the British Antarctic Survey and climbing some of

2329-420: A small, rocky spit at the terminus of a glacier, which offered better protection from rockfalls and from the sea, and which they called Point Wild . Realizing that there was no chance of passive rescue, Shackleton decided to sail to South Georgia , where he knew there were several whaling stations. Shackleton sailed with Tom Crean , Frank Worsley , Harry "Chippy" McNish , Tim McCarthy , and John Vincent on

2466-535: A successful whaling industry. German whaling ships in the mid to late 19th century would generally not be staffed with experienced sailors but rather with members of more wealthy farming communities, going for short trips to Scandinavia during the end of spring and beginning of summer, when their labor was not required on the fields. This kind of whaling was ineffective. Many journeys would not lead to any whales caught, instead seal- and polar bear skins were brought back to shore. Communities often paid more for equipping

2603-521: A temporary ecosystem at the ocean floor. Despite rebounding whale numbers after the international ban on whaling, climate change and rising carbon levels continue to hinder the amount of carbon sequestered by whales. Whaling was a major maritime industry in Australia from 1791 until its final cessation in 1978. At least 45 whaling stations operated in Tasmania during the 19th century, and bay whaling

2740-532: Is Earth 's southernmost and least-populated continent . Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean ), it contains the geographic South Pole . Antarctica is the fifth-largest continent, being about 40% larger than Europe , and has an area of 14,200,000 km (5,500,000 sq mi). Most of Antarctica

2877-655: Is 1–3 cm (0.39–1.18 in). From the end of the Neoproterozoic era to the Cretaceous , Antarctica was part of the supercontinent Gondwana . Modern Antarctica was formed as Gondwana gradually broke apart beginning around 183 Ma. For a large proportion of the Phanerozoic , Antarctica had a tropical or temperate climate , and it was covered in forests. During the Cambrian period , Gondwana had

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3014-542: Is almost 18,000 km (11,200 mi) long: as of 1983 , of the four coastal types, 44% of the coast is floating ice in the form of an ice shelf , 38% consists of ice walls that rest on rock, 13% is ice streams or the edge of glaciers, and the remaining 5% is exposed rock. The lakes that lie at the base of the continental ice sheet occur mainly in the McMurdo Dry Valleys or various oases . Lake Vostok , discovered beneath Russia's Vostok Station ,

3151-480: Is being revealed by techniques such as remote sensing , ground-penetrating radar , and satellite imagery . Geologically, West Antarctica closely resembles the South American Andes . The Antarctic Peninsula was formed by geologic uplift and the transformation of sea bed sediments into metamorphic rocks . West Antarctica was formed by the merging of several continental plates , which created

3288-516: Is categorized as 'aboriginal subsistence hunters' by the IWC. The Lamalerans hunt for several species of whales but catching sperm whales are preferable, while other whales, such as baleen whales, are considered taboo to hunt. They caught five sperm whales in 1973; they averaged about 40 per year from the 1960s through the mid 1990s, 13 total from 2002 to 2006, 39 in 2007, an average of 20 per year 2008 through 2014, and caught 3 in 2015. Traditional Lamaleran whaling used wooden fishing boats built by

3425-449: Is caused by the emission of chlorofluorocarbons and halons into the atmosphere, which causes ozone to break down into other gases. The extreme cold conditions of Antarctica allow polar stratospheric clouds to form. The clouds act as catalysts for chemical reactions, which eventually lead to the destruction of ozone. The 1987 Montreal Protocol has restricted the emissions of ozone-depleting substances. The ozone hole above Antarctica

3562-640: Is covered by the Antarctic ice sheet , with an average thickness of 1.9 km (1.2 mi). Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation . It is mainly a polar desert , with annual precipitation of over 200 mm (8 in) along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost 60 metres (200 ft). Antarctica holds

3699-655: Is divided into West Antarctica and East Antarctica by the Transantarctic Mountains , which stretch from Victoria Land to the Ross Sea . The vast majority of Antarctica is covered by the Antarctic ice sheet , which averages 1.9 km (1.2 mi) in thickness. The ice sheet extends to all but a few oases , which, with the exception of the McMurdo Dry Valleys, are located in coastal areas. Several Antarctic ice streams flow to one of

3836-627: Is eaten by humans or animals, and blubber is rendered down mostly to cheap industrial products such as animal feed or, in Iceland, as a fuel supplement for whaling ships. International cooperation on whaling regulation began in 1931 and culminated in the signing of the International Convention for the Regulation of Whaling (ICRW) in 1946. Its aim is to: provide for the proper conservation of whale stocks and thus make possible

3973-470: Is evidence of a large number of volcanoes under the ice, which could pose a risk to the ice sheet if activity levels were to rise. The ice dome known as Dome Argus in East Antarctica is the highest Antarctic ice feature, at 4,091 metres (13,422 ft). It is one of the world's coldest and driest places—temperatures there may reach as low as −90 °C (−130 °F), and the annual precipitation

4110-408: Is expected to add about 11 cm (5 in) to global sea level rise . Marine ice sheet instability may cause West Antarctica to contribute tens of centimeters more if it is triggered before 2100. With higher warming, instability would be much more likely, and could double global, 21st-century sea-level rise. The fresh, 1100-1500 billion tons (GT) per year of meltwater from the ice dilutes

4247-591: Is generally considered to have had little ecological impact, early whaling in the Arctic may have altered freshwater ecology. Early whaling affected the development of widely disparate cultures on different continents. The Basques were the first to catch whales commercially and dominated the trade for five centuries, spreading to the far corners of the North Atlantic and even reaching the South Atlantic . The development of modern whaling techniques

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4384-518: Is normally foggy with much snow, and winds can reach 160 km/h (100 mph). Significant named features are Cape Yelcho , Cape Valentine and Cape Lookout at the northeastern and southern extremes, and Point Wild , a spit on the north coast. The Endurance Glacier is the main discharge glacier. Elephant Island is part of the Scotia metamorphic complex , which was created by Cretaceous sea floor sediments being scraped off and metamorphosed at

4521-582: Is predicted to slowly disappear; by the 2060s, levels of ozone are expected to have returned to values last recorded in the 1980s. The ozone depletion can cause a cooling of around 6 °C (11 °F) in the stratosphere . The cooling strengthens the polar vortex and so prevents the outflow of the cold air near the South Pole, which in turn cools the continental mass of the East Antarctic ice sheet. The peripheral areas of Antarctica, especially

4658-400: Is reported that demand for whale meat decreased in that year. Lamalera, on the south coast of the island of Lembata , and Lamakera on neighbouring Solor , are the two remaining Indonesian whaling communities. The hunters obey religious taboos that ensure that they use every part of the animal. About half of the catch is kept in the village; the rest is bartered in local markets. In 1973,

4795-574: Is required to adequately track whale products. It was revealed in 1994 that the Soviet Union had been systematically undercounting its catch. For example, from 1948 to 1973, the Soviet Union caught 48,477 humpback whales rather than the 2,710 it officially reported to the IWC. On the basis of this new information, the IWC stated that it would have to rewrite its catch figures for the last 40 years. According to Ray Gambell, then-Secretary of

4932-469: Is sold through shops and supermarkets in northern communities where whale meat is a component of the traditional diet. Hunters in Hudson Bay rarely eat beluga meat. They give a little to dogs and leave the rest for wild animals. Other areas may dry the meat for later consumption by humans. An average of one or two vertebrae and one or two teeth per beluga or narwhal are carved and sold. One estimate of

5069-441: Is the largest subglacial lake globally and one of the largest lakes in the world. 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. During the summer, the ice at the edges of the lakes can melt, and liquid moats temporarily form. Antarctica has both saline and freshwater lakes. Antarctica

5206-504: Is transferred through the Arctic sea ice and moderates temperatures in the Arctic region. East Antarctica is colder than its western counterpart because of its higher elevation. Weather fronts rarely penetrate far into the continent, leaving the centre cold and dry, with moderate wind speeds. Heavy snowfalls are common on the coastal portion of Antarctica, where snowfalls of up to 1.22 m (48 in) in 48 hours have been recorded. At

5343-470: Is within the Antarctic claims of Argentina , Chile and the United Kingdom . The Brazilian Antarctic Program maintains a shelter on the island, Goeldi , and formerly had another ( Wiltgen ), which was dismantled in the summers of 1997 and 1998, supporting the work of up to six researchers each during the summer. Elephant Island's name is attributed to both its elephant head-like appearance and

5480-476: The Antarctic Circle (one of the five major circles of latitude that mark maps of the world), Antarctica is surrounded by the Southern Ocean . Rivers exist in Antarctica; the longest is the Onyx . Antarctica covers more than 14.2 million km (5,500,000 sq mi), almost double the area of Australia, making it the fifth-largest continent, and comparable to the surface area of Pluto . Its coastline

5617-662: The Beardmore Glacier by Frank Wild on the Nimrod Expedition in 1907, and low-grade coal is known to exist across many parts of the Transantarctic Mountains. The Prince Charles Mountains contain deposits of iron ore . There are oil and natural gas fields in the Ross Sea. Antarctica is the coldest, windiest, and driest of Earth's continents. Near the coast, the temperature can exceed 10 °C in summer and fall to below −40 °C in winter. Over

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5754-628: The Beaufort Sea , 300 in northern Quebec ( Nunavik ), and an unknown number in Nunavut . The total annual kill in Beaufort and Quebec areas varies between 300 and 400 belugas per year. Numbers are not available for Nunavut since 2003, when the Arviat area, with about half Nunavut's hunters, killed 200–300 belugas, though the authors say hunters resist giving complete numbers. Harvested meat

5891-596: The Beluga whale article, Indonesia's catches of sperm whales, and bycatch in Korea. Most of the whale species in the table are not considered endangered by the IUCN ("least concern" or "data deficient"). Only the sei whale is classified as "endangered", and the fin whale is classified as "vulnerable" by the IUCN. Key elements of the debate over whaling include sustainability, ownership, national sovereignty, cetacean intelligence , suffering during hunting, health risks,

6028-647: The Big Sur coast. Elephant Island is the type locality for phosphate mineral spheniscidite . The barren island supports no native terrestrial flora or fauna, although seasonal colonies of chinstrap , gentoo and macaroni penguins congregate in their thousands to mate and breed during warmer periods. Other seabirds found on the island include the Antarctic shag and tern , brown skua , Cape petrel , giant petrel , kelp gull , snowy sheathbill and Wilson's storm-petrel . Antarctic fur seals , leopard seals and southern elephant seals are also found around

6165-641: The Cretaceous period (146–66 Ma), though southern beech trees ( Nothofagus ) became prominent towards the end of the Cretaceous. Ammonites were common in the seas around Antarctica, and dinosaurs were also present, though only a few Antarctic dinosaur genera ( Cryolophosaurus and Glacialisaurus , from the Early Jurassic Hanson Formation of the Transantarctic Mountains, and Antarctopelta , Trinisaura , Morrosaurus and Imperobator from Late Cretaceous of

6302-683: The Early Triassic . The Antarctic Peninsula began to form during the Jurassic period ( 206 to 146 million years ago ). Africa separated from Antarctica in the Jurassic around 160 Ma, followed by the Indian subcontinent in the early Cretaceous (about 125 Ma). Ginkgo trees, conifers, Bennettitales , horsetails , ferns and cycads were plentiful during the time. In West Antarctica, coniferous forests dominated throughout

6439-526: The Northern Hemisphere , an eventual decline of fisheries in the Southern Ocean and a potential collapse of certain marine ecosystems . While many Antarctic species remain undiscovered, there are documented increases in Antarctic flora , and large fauna such as penguins are already having difficulty retaining suitable habitat. On ice-free land, permafrost thaws release greenhouse gases and formerly frozen pollution. Scientists have studied

6576-576: The Second World War , German whaling was abandoned completely. In the early 1950s, Germany maintained one whaling vessel for testing purpose as it considered re-establishing a German whaling fleet, but abandoned these plans in 1956. The last remaining German whalers worked for Dutch vessels in the 1950s and 1960s. Iceland is one of a handful of countries which still host a (privately owned) whaling fleet. One company ( Hvalur hf. ) concentrates on hunting fin whales, largely for export to Japan, while

6713-656: The United Nations 's Food and Agriculture Organization (FAO) sent a whaling ship and a Norwegian whaler to modernize their hunt. This effort lasted three years and was not successful. According to the FAO report, the Lamalerans "have evolved a method of whaling which suits their natural resources, cultural tenets and style." Lamalerans say they returned the ship because they immediately caught five sperm whales, too many to butcher and eat without refrigeration. Since these communities only hunt whales for noncommercial purposes, it

6850-420: The crust-like lichen Buellia frigida , has been used as a model organism in astrobiology research. The same features can be observed in algae and cyanobacteria , suggesting that they are adaptations to the conditions prevailing in Antarctica. This has led to speculation that life on Mars might have been similar to Antarctic fungi, such as Cryomyces antarcticus and Cryomyces minteri . Some of

6987-535: The ozone layer in the atmosphere above Antarctica since the 1970s. In 1985, British scientists, working on data they had gathered at Halley Research Station on the Brunt Ice Shelf , discovered a large area of low ozone concentration over Antarctica. The 'ozone hole' covers almost the whole continent and was at its largest in September 2006; the longest-lasting event occurred in 2020. The depletion

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7124-552: The 17th century; competitive national whaling industries in the 18th and 19th centuries; and the introduction of factory ships and explosive harpoons along with the concept of whale harvesting in the first half of the 20th century. By the late 1930s, more than 50,000 whales were killed annually. In 1982, the International Whaling Commission (IWC) decided that there should be a pause on commercial whaling on all whale species from 1986 onwards because of

7261-637: The Antarctic Circle on 17 January 1773, in December 1773, and again in January 1774. Cook came within about 120 km (75 mi) of the Antarctic coast before retreating in the face of field ice in January 1773. In 1775, he called the existence of a polar continent "probable", and in another copy of his journal he wrote: "[I] firmly believe it and it's more than probable that we have seen

7398-790: The Antarctic Peninsula) have been described. During the early Paleogene , Antarctica remained connected to South America as well as to southeastern Australia. Fauna from the La Meseta Formation in the Antarctic Peninsula, dating to the Eocene , is very similar to equivalent South American faunas; with marsupials , xenarthrans , litoptern , and astrapotherian ungulates , as well as gondwanatheres and possibly meridiolestidans . Marsupials are thought to have dispersed into Australia via Antarctica by

7535-423: The Antarctic Peninsula, are then subjected to higher temperatures, which accelerate the melting of the ice. Models suggest that ozone depletion and the enhanced polar vortex effect may also account for the period of increasing sea ice extent, lasting from when observation started in the late 1970s until 2014. Since then, the coverage of Antarctic sea ice has decreased rapidly. Most species in Antarctica seem to be

7672-529: The Antarctic Peninsula: Deschampsia antarctica (Antarctic hair grass), Colobanthus quitensis (Antarctic pearlwort) and the non-native Poa annua (annual bluegrass). Of the 700 species of algae in Antarctica, around half are marine phytoplankton . Multicoloured snow algae are especially abundant in the coastal regions during the summer. Even sea ice can harbour unique ecological communities, as it expels all salt from

7809-674: The Cambrian Period. It is built on a craton of rock, which is the basis of the Precambrian Shield . On top of the base are coal and sandstones, limestones, and shales that were laid down during the Devonian and Jurassic periods to form the Transantarctic Mountains. In coastal areas such as the Shackleton Range and Victoria Land, some faulting has occurred. Coal was first recorded in Antarctica near

7946-637: The Caribbean (where people are advised not to exceed one serving every three weeks), in the Faroe Islands, and in Japan. Scientists have analyzed the ability of the oceans to sequester atmospheric carbon before industrial whaling and in modern times, hundreds of years after the most active whaling periods. Focusing on the amount of carbon stored in baleen whales, scientists determined that large marine mammals hold over 9 million less tons of carbon in

8083-799: The Endurance Memorial Site, an Antarctic Historic Site (HSM 53), with a bust of Captain Pardo and several plaques. Hampson Cove on the southwest coast of the island, including the foreshore and intertidal area, contains the wreckage of a large wooden sailing vessel; it has been designated a Historic Site or Monument (HSM 74), following a proposal by the United Kingdom to the Antarctic Treaty Consultative Meeting . Antarctica Antarctica ( / æ n ˈ t ɑːr k t ɪ k ə / )

8220-408: The IWC moratorium lifted on certain whale stocks for hunting. Anti-whaling countries and environmental activists oppose lifting the ban. Under the terms of the IWC moratorium, aboriginal whaling is allowed to continue on a subsistence basis . Over the past few decades, whale watching has become a significant industry in many parts of the world; in some countries it has replaced whaling, but in

8357-523: The IWC, because in its opinion, the IWC had failed its duty to promote sustainable hunting as the culture within the IWC moved towards an anti-whaling, pro-conservation agenda. Japanese officials also announced they will resume commercial hunting within its territorial waters and its 200-mile exclusive economic zones starting in July 2019, but it will cease whaling activities in the Antarctic Ocean,

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8494-460: The IWC, the organization had raised its suspicions with the former Soviet Union, but it did not take further action because it could not interfere with national sovereignty. Whales are long-lived predators, so their tissues build up concentrations of methylmercury from their prey. Mercury concentrations reach levels that are hazardous to humans who consume too much too often, since mercury also bioaccumulates in humans. High levels have been found in

8631-686: The Japanese claim of research "as a disguise for commercial whaling, which is banned." The Sea Shepherd Conservation Society has attempted to disrupt Japanese whaling in the Antarctic since 2003 but eventually ceased this activity in 2017 due to little achievement in creating change. Other NGOs such as the Australian Marine Conservation Society and Humane Society International continued to campaign against Japan's scientific whaling program and block votes at IWC to bring back commercial whaling. The stated purpose of

8768-432: The Scotia subduction zone. The resulting rocks are phyllites , blueschists and greenschists typical of an accretionary wedge , with increased metamorphism from northeast to southwest. These rocks are at the surface here because of uplift along the Shackleton Fault Zone where it meets the South Scotia Ridge . This complex is very similar in age and rock types to those of coastal California, including Catalina Island and

8905-411: The South Pole the romanised Greek name polus antarcticus , from which derived the Old French pole antartike (modern pôle antarctique ) attested in 1270, and from there the Middle English pol antartik , found first in a treatise written by the English author Geoffrey Chaucer . Belief by Europeans in the existence of a Terra Australis —a vast continent in the far south of

9042-520: The Southern Ocean, which was declared a whale sanctuary in 1994. Opponents of the compromise plan want to see an end to all commercial whaling but are willing to allow subsistence-level catches by indigenous peoples . These totals include great whales: counts from IWC and WDC and IWC Summary Catch Database version 6.1, July 2016. The IWC database is supplemented by Faroese catches of pilot whales, Greenland's and Canada's catches of narwhals (data 1954–2014), belugas from multiple sources shown in

9179-466: The West Antarctic, the ocean has warmed by 1 °C (1.8 °F) since 1955. The warming of the Southern Ocean around Antarctica has caused the weakening or collapse of ice shelves , which float just offshore of glaciers and stabilize them. Many coastal glaciers have been losing mass and retreating, causing net-annual ice loss across Antarctica, although the East Antarctic ice sheet continues to gain ice inland. By 2100, net ice loss from Antarctica

9316-417: The annual gross value received from Beluga hunts in Hudson Bay in 2013 was CA$ 600,000 for 190 belugas, or CA$ 3,000 per beluga, and CA$ 530,000 for 81 narwhals, or CA$ 6,500 per narwhal. However the net income, after subtracting costs in time and equipment, was a loss of CA$ 60 per person for belugas and CA$ 7 per person for narwhals. Hunts receive subsidies, but they continue as a tradition rather than for

9453-414: The anti-whaling side for the continuation of scientific whaling. Deputy whaling commissioner, Joji Morishita, told BBC News : The reason for the moratorium [on commercial whaling] was scientific uncertainty about the number of whales. ... It was a moratorium for the sake of collecting data and that is why we started scientific whaling. We were asked to collect more data. This collusive relationship between

9590-573: The argument for extraterrestrial life in cold, methane -rich environments. The first international agreement to protect Antarctica's biodiversity was adopted in 1964. The overfishing of krill (an animal that plays a large role in the Antarctic ecosystem) led officials to enact regulations on fishing. The Convention for the Conservation of Antarctic Marine Living Resources , an international treaty that came into force in 1980, regulates fisheries, aiming to preserve ecological relationships. Despite these regulations, illegal fishing —particularly of

9727-416: The biodiversity in Antarctica is still at risk from human activities. Specially protected areas cover less than 2% of the area and provide better protection for animals with popular appeal than for less visible animals. There are more terrestrial protected areas than marine protected areas . Ecosystems are impacted by local and global threats, notably pollution , the invasion of non-native species , and

9864-690: The catch methods used to capture and kill the whales. The Inuit mastered the art of whaling around the 11 century AD in the Bering Strait . The technique consisted of spearing a whale with a spear connected to an inflated seal bladder. The bladder would float and exhaust the whale when diving, and when it surfaced the Inuit hunters would spear it again, further exhausting the animal until they were able to kill it. Vikings in Greenland also ate whale meat, but archaeologists believe they never hunted them on

10001-545: The catch. The average per year from 2012 to 2016 was around 150 minke and 17 fin whales and humpback whales taken from west coast waters and around 10 minke from east coast waters. In April 2009 Greenland landed its first bowhead whale in nearly 40 years. It landed three bowheads each year in 2009 and 2010, one each in 2011 and 2015. In 2021 the Sermersooq municipal council banned whaling in Nuup Kangerlua , one of

10138-584: The climate cooled, though flora remained. After deglaciation during the latter half of the Early Permian , the land became dominated by glossopterids (an extinct group of seed plants with no close living relatives), most prominently Glossopteris , a tree interpreted as growing in waterlogged soils, which formed extensive coal deposits. Other plants found in Antarctica during the Permian include Cordaitales , sphenopsids , ferns, and lycophytes . At

10275-527: The colonial authorities in Sydney officially renamed the continent of New Holland to Australia, leaving the term "Terra Australis" unavailable as a reference to Antarctica. Over the following decades, geographers used phrases such as "the Antarctic Continent". They searched for a more poetic replacement, suggesting names such as Ultima and Antipodea . Antarctica was adopted in the 1890s, with

10412-423: The continent as a World Park . The Southern Ocean Whale Sanctuary was established in 1994 by the International Whaling Commission . It covers 50 million km (19 million sq mi) and completely surrounds the Antarctic continent. All commercial whaling is banned in the zone, though Japan has continued to hunt whales in the area, ostensibly for research purposes. Despite these protections,

10549-599: The continent's edge, strong katabatic winds off of the polar plateau often blow at storm force . During the summer, more solar radiation reaches the surface at the South Pole than at the equator because of the 24 hours of sunlight received there each day. Climate change caused by greenhouse gas emissions from human activities occurs everywhere on Earth, and while Antarctica is less vulnerable to it than any other continent, climate change in Antarctica has been observed. Since 1959, there has been an average temperature increase of >0.05 °C/decade since 1957 across

10686-496: The continent, although it had been uneven. West Antarctica warmed by over 0.1 °C/decade from the 1950s to the 2000s, and the exposed Antarctic Peninsula has warmed by 3 °C (5.4 °F) since the mid-20th century. The colder, stabler East Antarctica had been experiencing cooling until the 2000s. Around Antarctica, the Southern Ocean has absorbed more oceanic heat than any other ocean, and has seen strong warming at depths below 2,000 m (6,600 ft). Around

10823-402: The creation of small yet permanent polar ice caps. As CO 2 levels declined further the ice began to spread rapidly, replacing the forests that until then had covered Antarctica. Tundra ecosystems continued to exist on Antarctica until around 14-10 million years ago, when further cooling lead to their extermination. The geology of Antarctica, largely obscured by the continental ice sheet,

10960-549: The descendants of species that lived there millions of years ago. As such, they must have survived multiple glacial cycles . The species survived the periods of extremely cold climate in isolated warmer areas , such as those with geothermal heat or areas that remained ice-free throughout the colder climate. Invertebrate life of Antarctica includes species of microscopic mites such as Alaskozetes antarcticus , lice , nematodes , tardigrades , rotifers , krill and springtails . The few terrestrial invertebrates are limited to

11097-582: The early Eocene. Around 53 Ma, Australia- New Guinea separated from Antarctica, opening the Tasmanian Passage . The Drake Passage opened between Antarctica and South America around 30 Ma, resulting in the creation of the Antarctic Circumpolar Current that completely isolated the continent. Models of Antarctic geography suggest that this current, as well as a feedback loop caused by lowering CO 2 levels, caused

11234-489: The elevated inland, it can rise to about −30 °C in summer but fall below −80 °C in winter. The lowest natural air temperature ever recorded on Earth was −89.2 °C (−128.6 °F) at the Russian Vostok Station in Antarctica on 21 July 1983. A lower air temperature of −94.7 °C (−138.5 °F) was recorded in 2010 by satellite—however, it may have been influenced by ground temperatures and

11371-553: The end of that period. During the colder Neogene (17–2.5 Ma), a tundra ecosystem replaced the rainforests. The climate of present-day Antarctica does not allow extensive vegetation to form. 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. The flora largely consists of bryophytes (25 species of liverworts and 100 species of mosses ). There are three species of flowering plants , all of which are found in

11508-587: The end of the Permian, the climate became drier and hotter over much of Gondwana, and the glossopterid forest ecosystems collapsed, as part of the End-Permian mass extinction . There is no evidence of any tetrapods having lived in Antarctica during the Paleozoic. The continued warming dried out much of Gondwana. During the Triassic, Antarctica was dominated by seed ferns (pteridosperms) belonging to

11645-449: The existence of cetaceans. Large ships and boats make a tremendous amount of noise that falls into the same frequency range of many whales. Bycatch also kills more animals than hunting. Some scientists believe pollution to be a factor. Moreover, since the IWC moratorium, there have been several instances of illegal whale hunting by IWC nations. In 1994, the IWC reported evidence from genetic testing of whale meat and blubber for sale on

11782-635: The extreme depletion of most of the whale stocks. Contemporary whaling for whale meat is subject to intense debate. Iceland, Japan, Norway, First Nations people in Canada, Native Americans in the USA, and the Danish dependencies of the Faroe Islands and Greenland continue to hunt in the 21st century. The IWC ban on commercial whaling has been very successful, with only Iceland, Japan and Norway still engaging in and supporting commercial hunting. They also support having

11919-454: The first to reach the magnetic South Pole in 1909, and the geographic South Pole was first reached in 1911 by Norwegian explorer Roald Amundsen . Antarctica is governed by about 30 countries , all of which are parties of the 1959 Antarctic Treaty System . According to the terms of the treaty, military activity, mining, nuclear explosions , and nuclear waste disposal are all prohibited in Antarctica. Tourism , fishing and research are

12056-473: The first use of the name being attributed to the Scottish cartographer John George Bartholomew . Antarctica has also been known by the moniker Great White South , after which British photographer Herbert Ponting named one of his books on Antarctic photography, possibly as a counterpart to the epithet Great White North for Canada . Positioned asymmetrically around the South Pole and largely south of

12193-402: The gap of 12,000 km (7,456 mi). Large animals such as some cetaceans and birds make the round trip annually. Smaller forms of life, such as sea cucumbers and free-swimming snails , are also found in both polar oceans. 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

12330-502: The genus Dicroidium , which grew as trees. Other associated Triassic flora included ginkgophytes , cycadophytes , conifers , and sphenopsids. Tetrapods first appeared in Antarctica during the early Triassic , with the earliest known fossils found in the Fremouw Formation of the Transantarctic Mountains. Synapsids (also known as "mammal-like reptiles") included species such as Lystrosaurus , and were common during

12467-525: The globe to balance the northern lands of Europe, Asia, and North Africa—had existed as an intellectual concept since classical antiquity . The belief in such a land lasted until the European discovery of Australia . During the early 19th century, explorer Matthew Flinders doubted the existence of a detached continent south of Australia (then called New Holland ) and thus advocated for the "Terra Australis" name to be used for Australia instead. In 1824,

12604-523: The highly prized Patagonian toothfish which is marketed as Chilean sea bass in the U.S.—remains a problem. In analogy to the 1980 treaty on sustainable fishing , countries led by New Zealand and the United States negotiated a treaty on mining. This Convention on the Regulation of Antarctic Mineral Resource Activities was adopted in 1988. After a strong campaign from environmental organisations, first Australia and then France decided not to ratify

12741-569: The hunt of one whale every two years from the Hudson Bay-Foxe Basin population, and one whale every 13 years from the Baffin Bay-Davis Strait population. The traditional whale hunt, known as grindadráp , is regulated by Faroese authorities but not by the IWC, which does not claim jurisdiction over small cetaceans. Around 800 long-finned pilot whales ( Globicephala melaena ) are caught each year, mainly during

12878-404: The island seasonally; the latter two species often prey on the many inexperienced penguins learning to enter and exit the water. A lack of safe anchorage has prevented any permanent human influence, despite the island being conveniently located to support potential scientific, fishing or whale watching endeavors. Due to past illegal whaling by the Soviet Union (with support from Japan ),

13015-553: The islands of the Kerguelen Plateau , the earliest of which formed around 40 Ma . Vinson Massif , in the Ellsworth Mountains , is the highest peak in Antarctica at 4,892 m (16,050 ft). Mount Erebus on Ross Island is the world's southernmost active volcano and erupts around 10 times each day. Ash from eruptions has been found 300 kilometres (190 mi) from the volcanic crater . There

13152-477: The largest fjords in inhabited areas of Greenland. The council did not want hunting to kill the humpback whales seen by the local tourism industry. Before local humpback hunting resumed in 2010 there had been nine humpbacks in the fjord during summer. When hunting resumed some were killed and others left. Sermersooq has not banned whaling elsewhere in the municipality, which is the world's largest municipality, at 200,000 square miles on both coasts. Originally one of

13289-467: The main human activities in and around Antarctica. During the summer months, about 5,000 people reside at research stations , a figure that drops to around 1,000 in the winter. Despite the continent's remoteness, human activity has a significant effect on it via pollution , ozone depletion , and climate change . The melting of the potentially unstable West Antarctic ice sheet causes the most uncertainty in century-scale projections of sea level rise , and

13426-814: The major current systems or marine conveyor belts which are able to transport eggs and larva . About 1,150 species of fungi have been recorded in the Antarctic region, of which about 750 are non- lichen -forming. Some of the species, having evolved under extreme conditions, have colonised structural cavities within porous rocks and have contributed to shaping the rock formations of the McMurdo Dry Valleys and surrounding mountain ridges. The simplified morphology of such fungi, along with their similar biological structures , metabolism systems capable of remaining active at very low temperatures, and reduced life cycles, make them well suited to such environments. Their thick-walled and strongly melanised cells make them resistant to UV radiation. An Antarctic endemic species,

13563-671: The many Antarctic ice shelves , a process described by ice-sheet dynamics . East Antarctica comprises Coats Land , Queen Maud Land , Enderby Land , Mac . Robertson Land , Wilkes Land , and Victoria Land. All but a small portion of the region lies within the Eastern Hemisphere . East Antarctica is largely covered by the East Antarctic Ice Sheet . There are numerous islands surrounding Antarctica, most of which are volcanic and very young by geological standards. The most prominent exceptions to this are

13700-424: The money, and the economic analysis noted that whale watching may be an alternate revenue source. Of the gross income, CA$ 550,000 was for beluga skin and meat, to replace beef, pork and chickens which would otherwise be bought, CA$ 50,000 was received for carved vertebrae and teeth. CA$ 370,000 was for narwhal skin and meat, CA$ 150,000 was received for tusks, and carved vertebrae and teeth of males, and CA$ 10,000

13837-631: The most successful whaling nations, German whaling vessels started from Hamburg and other smaller cities on the Elbe River, hunting for whales around Greenland and Spitsbergen . While 1770 is recorded to have been the most successful year of German whaling, German whaling went into steep decline with the beginning of the Napoleonic Wars and never really recovered. After the Napoleonic Wars, Germany tried but could never re-establish

13974-587: The north'). Antarcticus is derived from the Greek ἀντι- ('anti-') and ἀρκτικός ('of the Bear ', 'northern'). The Greek philosopher Aristotle wrote in Meteorology about an "Antarctic region" in c.  350 BCE . The Greek geographer Marinus of Tyre reportedly used the name in his world map from the second century CE, now lost. The Roman authors Gaius Julius Hyginus and Apuleius used for

14111-561: The number of southern right whales visiting Elephant Island is still in-recovery. However, blue , fin and humpback whales may be sighted in the waters surrounding Elephant Island. The First Russian Antarctic expedition led by Fabian Gottlieb von Bellingshausen and Mikhail Lazarev on the 985-ton sloop-of-war Vostok ("East") and the 530-ton support vessel Mirny ("Peaceful") discovered Elephant Island on 29 January 1821 and named it Остров Мордвинова ("Mordvinov Island") in honour of Admiral Mordvinov  [ ru ] . The island

14248-578: The ocean around Antarctica, including some that normally reside in the Arctic. 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. A Census of Marine Life by some 500 researchers during the International Polar Year was released in 2010. The research found that more than 235 marine organisms live in both polar regions, having bridged

14385-417: The ocean than during the pre whaling era (9.1 x 10^6 tons). Whales play an important role in the carbon cycle in life and death. Living whales cycle carbon and nitrogen throughout the water column via whale feces where it can contribute to primary productivity at the surface. In death, their carcasses can become part of a whale fall and sink to the bottom, bringing their carbon with them to help form

14522-441: The only other one hunts minke whales for domestic consumption, as the meat is popular with tourists . Iceland has its own whale watching sector, which exists in uneasy tension with the whaling industry. Iceland did not object to the 1986 IWC moratorium. Between 1986 and 1989 around 60 animals per year were taken under a scientific permit. However, under strong pressure from anti-whaling countries, who viewed scientific whaling as

14659-455: The open market in Japan in 1993. In addition to the legally permitted minke whale, the analyses showed that 10–25% of tissues sampled came from non-minke baleen whales . Further research in 1995 and 1996 showed a significant drop of non-minke baleen whales sampled to 2.5%. In a separate paper, Baker stated that "many of these animals certainly represent a bycatch (incidental entrapment in fishing gear)" and stated that DNA monitoring of whale meat

14796-547: The orderly development of the whaling industry. The International Whaling Commission (IWC) was set up under the ICRW to decide hunting quotas and other relevant matters based on the findings of its Scientific Committee. Non-member countries are not bound by its regulations and conduct their own management programs. It regulates hunting of 13 species of great whales and has not reached consensus on whether it may regulate smaller species. The IWC voted on July 23, 1982, to establish

14933-409: The organisation to lift the ban. A coalition of anti-whaling nations offered a compromise plan that would allow these countries to continue whaling but with smaller catches and under close supervision. Their plan would also completely ban whaling in the Southern Ocean . More than 200 scientists and experts have opposed the compromise proposal for lifting the ban and have also opposed allowing whaling in

15070-548: The peaks on the island. The expedition visited Point Wild but found no trace of the Endurance expedition; it did, however, find the wreckage of a large sailing vessel, likely the remains of the schooner Charles Shearer from Stonington, New London, Connecticut, under Captain William Henry Appelman. The expedition also landed on and climbed the highest peak on nearby Clarence Island . Point Wild contains

15207-424: The record for the lowest measured temperature on Earth , −89.2 °C (−128.6 °F). The coastal regions can reach temperatures over 10 °C (50 °F) in the summer. Native species of animals include mites , nematodes , penguins , seals and tardigrades . Where vegetation occurs, it is mostly in the form of lichen or moss . The ice shelves of Antarctica were probably first seen in 1820, during

15344-648: The research program is to establish the size and dynamics of whale populations. The Japanese government wishes to resume whaling in a sustainable manner under the oversight of the IWC, both for whale products (meat, etc.) and to help preserve fishing resources by culling whales. Anti-whaling organizations claim that the research program is a front for commercial whaling, that the sample size is needlessly large and that equivalent information can be obtained by non-lethal means, for example by studying samples of whale tissue (such as skin) or feces. The Japanese government sponsored Institute of Cetacean Research (ICR), which conducts

15481-506: The research, disagrees, stating that the information obtainable from tissue and/or feces samples is insufficient and that the sample size is necessary in order to be representative. Japan's scientific whaling program is controversial in anti-whaling countries. Countries opposed to whaling have passed non-binding resolutions in the IWC urging Japan to stop the program. Japan claims that whale stocks for some species are sufficiently large to sustain commercial hunting and blame filibustering by

15618-539: The saline Antarctic bottom water , weakening the lower cell of the Southern Ocean overturning circulation (SOOC). According to some research, a full collapse of the SOOC may occur a between 1.7 °C (3.1 °F) and 3 °C (5.4 °F) of global warming, although the full effects are expected to occur over multiple centuries; these include less precipitation in the Southern Hemisphere but more in

15755-480: The same melting also affects the Southern Ocean overturning circulation , which can eventually lead to significant impacts on the Southern Hemisphere climate and Southern Ocean productivity. The name given to the continent originates from the word antarctic , which comes from Middle French antartique or antarctique ('opposite to the Arctic ') and, in turn, the Latin antarcticus ('opposite to

15892-493: The sea. Greenlandic Inuit whalers catch around 175 large whales per year, mostly minke whales, as well as 360 narwhals, 200 belugas, 190 pilot whales and 2,300 porpoises. The government of Greenland sets limits for narwhals and belugas. There are no limits on pilot whales and porpoises. The IWC treats the west and east coasts of Greenland as two separate population areas and sets separate quotas for each coast. The far more densely populated west coast accounts for over 90% of

16029-529: The sighting of elephant seals by Captain George Powell in 1821, one of the earliest sightings. In Russia, it is still known by the name given by its discoverers in 1821 – Mordvinov Island. Elephant Island marks the western end of the South Scotia Ridge . The island is oriented approximately east–west, with a maximum elevation of 973 m (3,192 ft) at Mount Pendragon . The weather

16166-406: The species of fungi, which are apparently endemic to Antarctica, live in bird dung, and have evolved so they can grow inside extremely cold dung, but can also pass through the intestines of warm-blooded animals. Throughout its history, Antarctica has seen a wide variety of plant life. In the Cretaceous , it was dominated by a fern- conifer ecosystem, which changed into a temperate rainforest by

16303-615: The study was to deepen the understanding of fish–whale interactions. Amid disagreement within the IWC Scientific Committee about the value of the research and its relevance to IWC objectives, no decision on the proposal was reached. However, under the terms of the convention the Icelandic government issued permits for a scientific catch. In 2003 Iceland resumed scientific whaling which continued in 2004 and 2005. Iceland resumed commercial whaling in 2006. Its annual quota

16440-683: The sub-Antarctic islands. The flightless midge Belgica antarctica , the largest purely terrestrial animal in Antarctica, reaches 6 mm ( 1 ⁄ 4  in) in size. Antarctic krill , which congregates in large schools , is the keystone species of the ecosystem of the Southern Ocean, being an important food organism for whales, seals, leopard seals , fur seals, squid , icefish , and many bird species, such as penguins and albatrosses . Some species of marine animals exist and rely, directly or indirectly, on phytoplankton . Antarctic sea life includes penguins , blue whales , orcas , colossal squids and fur seals . The Antarctic fur seal

16577-419: The summer. Other species are not hunted, though occasionally Atlantic white-sided dolphin can be found among the pilot whales. Most Faroese consider the hunt an important part of their culture and history and arguments about the topic raise strong emotions. Animal-rights groups criticize the hunt as being cruel and unnecessary and economically insignificant. Hunters claim that most journalists lack knowledge of

16714-617: The terms of the Packwood -Magnuson Amendment, Japan withdrew its objection in 1987. According to the BBC , the US went back on this promise, effectively destroying the deal. Since Japan could not resume commercial whaling, it began whaling on a purported scientific-research basis. Australia , Greenpeace , the Australian Marine Conservation Society , Sea Shepherd Conservation Society and other groups dispute

16851-592: The treaty. Instead, countries adopted the Protocol on Environmental Protection to the Antarctic Treaty (the Madrid Protocol), which entered into force in 1998. The Madrid Protocol bans all mining, designating the continent as a "natural reserve devoted to peace and science". The pressure group Greenpeace established a base on Ross Island from 1987 to 1992 as part of its attempt to establish

16988-406: The value of 'lethal sampling' to establish catch quotas, the value of controlling whales' impact on fish stocks and the rapidly approaching extinction of a few whale species. The World Wide Fund for Nature says that 90% of all northern right whales killed by human activities are from ship collisions, calling for restrictions on the movement of shipping in certain areas. Noise pollution threatens

17125-470: The various effects of climate change . Early world maps, like the 1513 Piri Reis map , feature the hypothetical continent Terra Australis . Much larger than and unrelated to Antarctica, Terra Australis was a landmass that classical scholars presumed necessary to balance the known lands in the northern hemisphere. Captain James Cook 's ships, HMS  Resolution and Adventure , crossed

17262-538: The vessels in the first place than making money with the goods brought back to shore. Today, local historians believe that German whaling in the late 19th century was more a rite of passage for the sons of wealthy farmers from northern German islands than an action undertaken for true commercial reason. German whaling was abandoned in 1872. Prior to the First World War , the newly established German Empire attempted to re-establish large scale German whaling. This

17399-412: The water when it freezes, which accumulates into pockets of brine that also harbour dormant microorganisms. When the ice begins to melt, brine pockets expand and can combine to form brine channels, and the algae inside the pockets can reawaken and thrive until the next freeze. Bacteria have also been found as deep as 800 m (0.50 mi) under the ice. It is thought to be likely that there exists

17536-595: The whaling industry and the Japanese government is sometimes criticized by pro-whaling activists who support local, small-scale coastal whaling such as the Taiji dolphin drive hunt . In September 2018, Japan chaired the 67th IWC meeting in Brazil and attempted to pass a motion to lift the moratorium on commercial whaling. Japan did not receive enough votes and the IWC rejected the motion. Subsequently, on 26 December 2018, Japan announced that it would withdraw its membership from

17673-462: Was 30 minke whales (out of an estimated 174,000 animals in the central and north-eastern North Atlantic ) and nine fin whales (out of an estimated 30,000 animals in the central and north-eastern North Atlantic ). For the 2012 commercial whaling season, starting in April and lasting six months, the quota was set to 216 minke whales, of which 52 were caught. Iceland did not hunt any whales in 2019, and it

17810-640: Was conducted out of other mainland centres. Modern whaling using harpoon guns and iron hulled catchers was conducted in the 20th century from shore-based stations in Western Australia , South Australia , New South Wales and Queensland , also in Norfolk Island . Overfishing saw the closure of some whaling stations before a government ban on the industry was introduced in 1978 after a major campaign by conservationists. Canadians kill about 600 narwhals per year. They kill 100 belugas per year in

17947-529: Was cooler, though fossils of land plants are known from then. Sand and silts were laid down in what is now the Ellsworth, Horlick , and Pensacola Mountains . Antarctica became glaciated during the Late Paleozoic icehouse beginning at the end of the Devonian period (360 Ma), though glaciation would substantially increase during the late Carboniferous . It drifted closer to the South Pole, and

18084-472: Was not recorded at a height of 2 m (7 ft) above the surface as required for official air temperature records. Antarctica is a polar desert with little precipitation ; the continent receives an average equivalent to about 150 mm (6 in) of water per year, mostly in the form of snow. The interior is dryer and receives less than 50 mm (2 in) per year, whereas the coastal regions typically receive more than 200 mm (8 in). In

18221-565: Was received for carved vertebrae and teeth of female narwhals. The Whale and Dolphin Conservation says: "Canada has pursued a policy of marine mammal management which appears to be more to do with political expediency rather than conservation." Canada left the IWC in 1982, and the only IWC-regulated species currently harvested by the Canadian Inuit is the bowhead whale. As of 2004, the limit on bowhead whale hunting allows for

18358-522: Was spurred in the 19th century by the increase in demand for whale oil , sometimes known as "train oil", and in the 20th century by a demand for margarine and later whale meat . The primary species hunted are minke whales , belugas , narwhals , and pilot whales , which are some of the smallest species of whales. There are also smaller numbers killed of gray whales , sei whales , fin whales , bowhead whales , Bryde's whales , sperm whales and humpback whales . Recent scientific surveys estimate

18495-557: Was the desolate refuge of the British explorer Ernest Shackleton and his crew in 1916 following the loss of their ship Endurance in the pack ice of the Weddell Sea . The crew of 28 reached Cape Valentine on Elephant Island after months spent drifting on ice floes and a harrowing crossing of the open ocean in small lifeboats. After camping at Cape Valentine for two nights, Shackleton and his crew moved 11 km (7 mi) west to

18632-400: Was undertaken with ships either going from Germany to Iceland or from the newly established German colonies to African waters. These attempts never were commercially successful and quickly given up. Only in the 1930s could Germany—with mainly Norwegian personnel—re-establish a large and successful whaling industry. More than 15,000 whales were caught between 1930 and 1939. With the beginning of

18769-439: Was very heavily hunted in the 18th and 19th centuries for its pelt by seal hunters from the United States and the United Kingdom. Leopard seals are apex predators in the Antarctic ecosystem and migrate across the Southern Ocean in search of food. There are approximately 40 bird species that breed on or close to Antarctica, including species of petrels , penguins , cormorants , and gulls . Various other bird species visit

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