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Arctic

The Arctic (/ˈɑːrtɪk/ or /ˈɑːrktɪk/)[1][Note 1] is a polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), northern Finland (Lapland), Iceland, northern Norway (Finnmark and Svalbard), Russia (Murmansk, Siberia, Nenets Okrug, Novaya Zemlya), northernmost Sweden and the United States (Alaska). Land within the Arctic region has seasonally varying snow and ice cover, with predominantly treeless permafrost (permanently frozen underground ice) containing tundra. Arctic seas contain seasonal sea ice in many places.

The Arctic Circle, currently at roughly 66° north of the Equator, defines the boundary of the arctic seas and lands
A political map showing land ownership within the Arctic region
Artificially coloured topographical map of the Arctic region
MODIS image of the Arctic

The Arctic region is a unique area among Earth's ecosystems. The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions. Life in the Arctic includes zooplankton and phytoplankton, fish and marine mammals, birds, land animals, plants and human societies.[3] Arctic land is bordered by the subarctic.

Definition and etymology

The word Arctic comes from the Greek word ἀρκτικός (arktikos), "near the Bear, northern"[4] and from the word ἄρκτος (arktos), meaning bear.[5] The name refers either to the constellation Ursa Major, the "Great Bear", which is prominent in the northern portion of the celestial sphere, or to the constellation Ursa Minor, the "Little Bear", which contains the celestial north pole (currently very near Polaris, the current north Pole Star, or North Star).[6]

There are a number of definitions of what area is contained within the Arctic. The area can be defined as north of the Arctic Circle (about 66° 34'N), the approximate southern limit of the midnight sun and the polar night. Another definition of the Arctic, which is popular with ecologists, is the region in the Northern Hemisphere where the average temperature for the warmest month (July) is below 10 °C (50 °F); the northernmost tree line roughly follows the isotherm at the boundary of this region.[7][8]

Climate

 
A snowy landscape of Inari located in Lapland (Finland)

The Arctic is characterized by cold winters and cool summers. Its precipitation mostly comes in the form of snow and is low, with most of the area receiving less than 50 cm (20 in). High winds often stir up snow, creating the illusion of continuous snowfall. Average winter temperatures can go as low as −40 °C (−40 °F), and the coldest recorded temperature is approximately −68 °C (−90 °F). Coastal Arctic climates are moderated by oceanic influences, having generally warmer temperatures and heavier snowfalls than the colder and drier interior areas. The Arctic is affected by current global warming, leading to Arctic sea ice shrinkage, diminished ice in the Greenland ice sheet, and Arctic methane release as the permafrost thaws.[9] The melting of Greenland's ice sheet is linked to polar amplification.[10]

Due to the poleward migration of the planet's isotherms (about 56 km (35 mi) per decade during the past 30 years as a consequence of global warming), the Arctic region (as defined by tree line and temperature) is currently shrinking.[11] Perhaps the most alarming result of this is Arctic sea ice shrinkage. There is a large variance in predictions of Arctic sea ice loss, with models showing near-complete to complete loss in September from 2035 to some time around 2067.[12][13]

Flora and fauna

Arctic life is characterized by adaptation to short growing seasons with long periods of sunlight, and cold, dark, snow-covered winter conditions.

Plants

Arctic vegetation is composed of plants such as dwarf shrubs, graminoids, herbs, lichens, and mosses, which all grow relatively close to the ground, forming tundra. An example of a dwarf shrub is the bearberry. As one moves northward, the amount of warmth available for plant growth decreases considerably. In the northernmost areas, plants are at their metabolic limits, and small differences in the total amount of summer warmth make large differences in the amount of energy available for maintenance, growth and reproduction. Colder summer temperatures cause the size, abundance, productivity and variety of plants to decrease. Trees cannot grow in the Arctic, but in its warmest parts, shrubs are common and can reach 2 m (6 ft 7 in) in height; sedges, mosses and lichens can form thick layers. In the coldest parts of the Arctic, much of the ground is bare; non-vascular plants such as lichens and mosses predominate, along with a few scattered grasses and forbs (like the Arctic poppy).

Animals

Herbivores on the tundra include the Arctic hare, lemming, muskox, and caribou. They are preyed on by the snowy owl, Arctic fox, Grizzly bear, and Arctic wolf. The polar bear is also a predator, though it prefers to hunt for marine life from the ice. There are also many birds and marine species endemic to the colder regions. Other terrestrial animals include wolverines, moose, Dall sheep, ermines, and Arctic ground squirrels. Marine mammals include seals, walrus, and several species of cetaceanbaleen whales and also narwhals, orcas, and belugas. An excellent and famous example of a ring species exists and has been described around the Arctic Circle in the form of the Larus gulls.

Natural resources

The Arctic includes copious natural resources (oil, gas, minerals, fresh water, fish and, if the subarctic is included, forest) to which modern technology and the economic opening up of Russia have given significant new opportunities. The interest of the tourism industry is also on the increase.

The Arctic contains some of the last and most extensive continuous wilderness areas in the world, and its significance in preserving biodiversity and genotypes is considerable. The increasing presence of humans fragments vital habitats. The Arctic is particularly susceptible to the abrasion of groundcover and to the disturbance of the rare breeding grounds of the animals that are characteristic to the region. The Arctic also holds 1/5 of the Earth's water supply.[14]

Paleontology

During the Cretaceous time period, the Arctic still had seasonal snows, though only a light dusting and not enough to permanently hinder plant growth. Animals such as the Chasmosaurus, Hypacrosaurus, Troodon, and Edmontosaurus may have all migrated north to take advantage of the summer growing season, and migrated south to warmer climes when winter came. A similar situation may also have been found amongst dinosaurs that lived in Antarctic regions, such as the Muttaburrasaurus of Australia.

However, others claim that dinosaurs lived year-round at very high latitudes, such as near the Colville River, which is now at about 70° N but at the time (70 million years ago) was 10° further north.[15]

Indigenous population

 
Circumpolar coastal human population distribution c. 2009 (includes indigenous and non-indigenous).

The earliest inhabitants of North America's central and eastern Arctic are referred to as the Arctic small tool tradition (AST) and existed c. 2500 BCE. AST consisted of several Paleo-Eskimo cultures, including the Independence cultures and Pre-Dorset culture.[16][17] The Dorset culture (Inuktitut: Tuniit or Tunit) refers to the next inhabitants of central and eastern Arctic. The Dorset culture evolved because of technological and economic changes during the period of 1050–550 BCE. With the exception of the Quebec/Labrador peninsula, the Dorset culture vanished around 1500 CE.[18] Supported by genetic testing, evidence shows that descendants of the Dorset culture, known as the Sadlermiut, survived in Aivilik, Southampton and Coats Islands, until the beginning of the 20th century.[19]

The Dorset/Thule culture transition dates around the ninth–10th centuries CE. Scientists theorize that there may have been cross-contact of the two cultures with sharing of technology, such as fashioning harpoon heads, or the Thule may have found Dorset remnants and adapted their ways with the predecessor culture.[20] Others believe the Thule displaced the Dorset.

By 1300 CE, the Inuit, present-day Arctic inhabitants and descendants of Thule culture, had settled in west Greenland, and moved into east Greenland over the following century (Inughuit, Kalaallit and Tunumiit are modern Greenlandic Inuit groups descended from Thule). Over time, the Inuit have migrated throughout the Arctic regions of Eastern Russia, the United States, Canada, and Greenland.[21]

Other Circumpolar North indigenous peoples include the Chukchi, Evenks, Iñupiat, Khanty, Koryaks, Nenets, Sami, Yukaghir, Gwich'in, and Yupik.

International cooperation and politics

 
Polar bears on the sea ice of the Arctic Ocean, near the North Pole. USS Honolulu pictured.

The eight Arctic nations (Canada, Kingdom of Denmark [Greenland & The Faroe Islands], Finland, Iceland, Norway, Sweden, Russia, and USA) are all members of the Arctic Council, as are organizations representing six indigenous populations. The council operates on consensus basis, mostly dealing with environmental treaties and not addressing boundary or resource disputes.

Though Arctic policy priorities differ, every Arctic nation is concerned about sovereignty/defense, resource development, shipping routes, and environmental protection.[22] Much work remains on regulatory agreements regarding shipping, tourism, and resource development in Arctic waters.[23] Arctic shipping is subject to some regulatory control through the International Code for Ships Operating in Polar Waters, adopted by the International Maritime Organization on 1 January 2017 and applies to all ships in Arctic waters over 500 tonnes.[24][25]

Research in the Arctic has long been a collaborative international effort, evidenced by the International Polar Year. The International Arctic Science Committee, hundreds of scientists and specialists of the Arctic Council, and the Barents Euro-Arctic Council are more examples of collaborative international Arctic research.[26]

Territorial claims

No country owns the geographic North Pole or the region of the Arctic Ocean surrounding it. The surrounding six Arctic states that border the Arctic Ocean—Canada, Kingdom of Denmark (with Greenland), Iceland, Norway, Russia, and the United States—are limited to a 200 nautical miles (370 km; 230 mi) exclusive economic zone (EEZ) off their coasts. Two Arctic states (Finland and Sweden) do not have direct access to the Arctic Ocean.

Upon ratification of the United Nations Convention on the Law of the Sea, a country has ten years to make claims to an extended continental shelf beyond its 200 nautical mile zone.[22][27] Due to this, Norway (which ratified the convention in 1996),[28] Russia (ratified in 1997),[28] Canada (ratified in 2003)[28] and the Kingdom of Denmark (ratified in 2004)[28] launched projects to establish claims that certain sectors of the Arctic seabed should belong to their territories.

On 2 August 2007, two Russian bathyscaphes, MIR-1 and MIR-2, for the first time in history descended to the Arctic seabed beneath the North Pole and placed there a Russian flag made of rust-proof titanium alloy. The flag-placing during Arktika 2007 generated commentary on and concern for a race for control of the Arctic's vast hydrocarbon resources.[29]

 
Map of the Arctic region showing the Northeast Passage, the Northern Sea Route within it, and the Northwest Passage.

Foreign ministers and other officials representing Canada, the Kingdom of Denmark, Norway, Russia, and the United States met in Ilulissat, Greenland on 28 May 2008 at the Arctic Ocean Conference and announced the Ilulissat Declaration,[30][31] blocking any "new comprehensive international legal regime to govern the Arctic Ocean," and pledging "the orderly settlement of any possible overlapping claims."[22][32]

As of 2012, the Kingdom of Denmark is claiming the continental shelf based on the Lomonosov Ridge between Greenland and over the North Pole to the northern limit of the Russian EEZ.[33]

The Russian Federation is also claiming a large swath of seabed along the Lomonosov Ridge but, unlike Denmark, confined its claim to its side of the Arctic. In August 2015, Russia made a supplementary submission for the expansion of the external borders of its continental shelf in the Arctic Ocean, asserting that the eastern part of the Lomonosov Ridge and the Mendeleyev Ridge are an extension of the Eurasian continent. In August 2016, the UN Commission on the Limits of the Continental Shelf began to consider Russia's submission.[34]

Canada claims the Northwest Passage as part of its internal waters belonging to Canada, while the United States and most maritime nations[35] regards it as an international strait, which means that foreign vessels have right of transit passage.[36]

Exploration

Since 1937, the larger portion of the Asian-side Arctic region has been extensively explored by Soviet and Russian crewed drifting ice stations. Between 1937 and 1991, 88 international polar crews established and occupied scientific settlements on the drift ice and were carried thousands of kilometres by the ice flow.[37]

Pollution

 
Long-range pollution pathways to the Arctic

The Arctic is comparatively clean, although there are certain ecologically difficult localized pollution problems that present a serious threat to people's health living around these pollution sources. Due to the prevailing worldwide sea and air currents, the Arctic area is the fallout region for long-range transport pollutants, and in some places the concentrations exceed the levels of densely populated urban areas. An example of this is the phenomenon of Arctic haze, which is commonly blamed on long-range pollutants. Another example is with the bioaccumulation of PCB's (polychlorinated biphenyls) in Arctic wildlife and people.

Preservation

There have been many proposals to preserve the Arctic over the years. Most recently a group of stars at the Rio Earth Summit, on 21 June 2012, proposed protecting the Arctic, similar to the Antarctic protection. The initial focus of the campaign will be a UN resolution creating a global sanctuary around the pole, and a ban on oil drilling and unsustainable fishing in the Arctic.[38]

The Arctic has climate change rates that are amongst the highest in the world. Due to the major impacts to the region from climate change the near climate future of the region will be extremely different under all scenarios of warming.[39]

Global warming

 
Arctic sea ice coverage as of 2007 compared to 2005 and compared to 1979–2000 average

The effects of global warming in the Arctic include rising temperatures, loss of sea ice, and melting of the Greenland ice sheet. Potential methane release from the region, especially through the thawing of permafrost and methane clathrates, is also a concern. Because of the amplified response of the Arctic to global warming, it is often seen as a leading indicator of global warming. The melting of Greenland's ice sheet is linked to polar amplification.[40][41]

The Arctic is especially vulnerable to the effects of any climate change, as has become apparent with the reduction of sea ice in recent years. Climate models predict much greater warming in the Arctic than the global average,[42] resulting in significant international attention to the region. In particular, there are concerns that Arctic shrinkage, a consequence of melting glaciers and other ice in Greenland, could soon contribute to a substantial rise in sea levels worldwide.[43]

The current Arctic warming is leading to ancient carbon being released from thawing permafrost, leading to methane and carbon dioxide production by micro-organisms.[44][45] Release of methane and carbon dioxide stored in permafrost could cause abrupt and severe global warming,[46] as they are potent greenhouse gases.[47]

 
The shrinking Arctic: Parts of Norway inside the Arctic Circle has a temperate climate with the 1991-2020 normals, such as Skrova near Svolvær with mean annual temperature of 6 °C (43 °F), four months above 10°C and no month below 0 °C (32 °F).[48]

Climate change is also predicted to have a large impact on tundra vegetation, causing an increase of shrubs,[49] and having a negative impact on bryophytes and lichens.[50]

Apart from concerns regarding the detrimental effects of warming in the Arctic, some potential opportunities have gained attention. The melting of the ice is making the Northwest Passage, the shipping routes through the northernmost latitudes, more navigable, raising the possibility that the Arctic region will become a prime trade route.[51] One harbinger of the opening navigability of the Arctic took place in the summer of 2016 when the Crystal Serenity successfully navigated the Northwest Passage, a first for a large cruise ship.[52]

In addition, it is believed that the Arctic seabed may contain substantial oil fields which may become accessible if the ice covering them melts.[53] These factors have led to recent international debates as to which nations can claim sovereignty or ownership over the waters of the Arctic.[54][55][56][57]

Arctic waters

Arctic lands

 
Nenets reindeer herders in the Yamalo-Nenets Autonomous Okrug
 
Murmansk on Russia's Kola Peninsula is the largest city in the world north of the Arctic Circle.
Geographic Designation National Affiliation Designation
Alaska United States State
Aleutian Islands United States American Archipelago
Arkhangelsk Oblast Russia Federal subject
Arctic Archipelago Canada Canadian Archipelago
Chukotka Autonomous Okrug Russia Federal subject
Diomede Island (Big) Russia Island
Diomede Island (Little) United States Island
Finnmark Norway County
Franz Josef Land Russia Federal subject archipelago
Greenland Kingdom of Denmark Autonomous country
Grímsey Iceland Island
Jan Mayen Norway Island
Kitikmeot Canada Administrative Region
Kivalliq Canada Administrative Region
Krasnoyarsk Krai Russia Federal subject
Lapland Finland Region
Lapland Sweden Province
Murmansk Oblast Russia Federal subject
Nenets Autonomous Okrug Russia Federal subject
New Siberian Islands Russia Archipelago
Nordland Norway County
Norrbotten Sweden Province
Northwest Territories Canada Territory
Novaya Zemlya Russia Federal subject archipelago
Nunavik Canada Northern part of Quebec
Nunatsiavut Canada Autonomous Region of Labrador
Nunavut Canada Territory
Qikiqtaaluk/Baffin Canada Administrative Region
Russian Arctic islands Russia Islands
Sápmi Norway, Sweden, Finland, Russia Fennoscandia region
Sakha Republic Russia Federal subject
Severnaya Zemlya Russia Federal subject archipelago
Siberia Russia Region
Svalbard Norway Governor of Svalbard archipelago
Troms Norway County
Yukon Canada Territory
Yamalo-Nenets Autonomous Okrug Russia Federal subject
Wrangel Island Russia Zapovednik (nature reserve)

See also

Notes

  1. ^ The word was originally pronounced without the /k/ sound, but the pronunciation with the k sound is nowadays very common. The "c" was added to the spelling for etymological reasons[1][2] and then began to be pronounced.

References

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Bibliography

  • Gibbon, Guy E.; Kenneth M. Ames (1998). Archaeology of prehistoric native America: an encyclopedia. Vol. 1537 of Garland reference library of the humanities. Taylor & Francis. ISBN 978-0-8153-0725-9.

Further reading

  • Brian W. Coad, James D. Reist. (2017). Marine Fishes of Arctic Canada. University of Toronto Press. ISBN 978-1-4426-4710-7
  • "Global Security, Climate Change, and the Arctic" 29 December 2017 at the Wayback Machine – 24-page special journal issue (Fall 2009), Swords and Ploughshares, Program in Arms Control, Disarmament, and International Security (ACDIS), University of Illinois
  • Report on human impacts on the Arctic
  • Krupnik, Igor, Michael A. Lang, and Scott E. Miller, eds. Smithsonian at the Poles: Contributions to International Polar Year Science. Washington, D.C.: Smithsonian Institution Scholarly Press, 2009.
  • Konyshev, Valery & Sergunin, Alexander: The Arctic at the Crossroads of Geopolitical Interests Russian Politics and Law, 2012, Vol.50, No.2, pp. 34–54
  • Käpylä, Juha & Mikkola, Harri: The Global Arctic: The Growing Arctic Interests of Russia, China, the United States and the European Union 15 September 2013 at the Wayback Machine FIIA Briefing Paper 133, August 2013, The Finnish Institute of International Affairs.
  • Konyshev, Valery & Sergunin, Alexander. The Arctic at the crossroads of geopolitical interests // Russian Politics and Law, 2012. Vol. 50, No. 2. p. 34–54
  • Konyshev, Valery & Sergunin, Alexander: Is Russia a revisionist military power in the Arctic? Defense & Security Analysis, September 2014.
  • Konyshev, Valery & Sergunin, Alexander. Russia in search of its Arctic strategy: between hard and soft power? Polar Journal, April 2014.
  • McCannon, John. A History of the Arctic: Nature, Exploration and Exploitation. Reaktion Books and University of Chicago Press, 2012. ISBN 9781780230184
  • O'Rourke, Ronald (14 October 2016). Changes in the Arctic: Background and Issues for Congress (PDF). Washington, DC: Congressional Research Service. Archived (PDF) from the original on 9 October 2022. Retrieved 20 October 2016.
  • Sperry, Armstrong (1957). All About the Arctic and Antarctic. Random House. LCCN 57007518.

External links

  • Arctic Report Card
  • Blossoming Arctic
  • International Arctic Research Center

arctic, other, uses, disambiguation, ɑːr, ɑːr, note, polar, region, located, northernmost, part, earth, consists, ocean, adjacent, seas, parts, canada, yukon, northwest, territories, nunavut, danish, realm, greenland, northern, finland, lapland, iceland, north. For other uses see Arctic disambiguation The Arctic ˈ ɑːr t ɪ k or ˈ ɑːr k t ɪ k 1 Note 1 is a polar region located at the northernmost part of Earth The Arctic consists of the Arctic Ocean adjacent seas and parts of Canada Yukon Northwest Territories Nunavut Danish Realm Greenland northern Finland Lapland Iceland northern Norway Finnmark and Svalbard Russia Murmansk Siberia Nenets Okrug Novaya Zemlya northernmost Sweden and the United States Alaska Land within the Arctic region has seasonally varying snow and ice cover with predominantly treeless permafrost permanently frozen underground ice containing tundra Arctic seas contain seasonal sea ice in many places The Arctic Circle currently at roughly 66 north of the Equator defines the boundary of the arctic seas and lands A political map showing land ownership within the Arctic region Artificially coloured topographical map of the Arctic region MODIS image of the Arctic The Arctic region is a unique area among Earth s ecosystems The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions Life in the Arctic includes zooplankton and phytoplankton fish and marine mammals birds land animals plants and human societies 3 Arctic land is bordered by the subarctic Contents 1 Definition and etymology 2 Climate 3 Flora and fauna 3 1 Plants 3 2 Animals 4 Natural resources 5 Paleontology 6 Indigenous population 7 International cooperation and politics 7 1 Territorial claims 7 2 Exploration 7 3 Pollution 7 4 Preservation 8 Global warming 9 Arctic waters 10 Arctic lands 11 See also 12 Notes 13 References 14 Bibliography 15 Further reading 16 External linksDefinition and etymology EditThe word Arctic comes from the Greek word ἀrktikos arktikos near the Bear northern 4 and from the word ἄrktos arktos meaning bear 5 The name refers either to the constellation Ursa Major the Great Bear which is prominent in the northern portion of the celestial sphere or to the constellation Ursa Minor the Little Bear which contains the celestial north pole currently very near Polaris the current north Pole Star or North Star 6 There are a number of definitions of what area is contained within the Arctic The area can be defined as north of the Arctic Circle about 66 34 N the approximate southern limit of the midnight sun and the polar night Another definition of the Arctic which is popular with ecologists is the region in the Northern Hemisphere where the average temperature for the warmest month July is below 10 C 50 F the northernmost tree line roughly follows the isotherm at the boundary of this region 7 8 Climate EditMain articles Climate of the Arctic and Global warming in the Arctic A snowy landscape of Inari located in Lapland Finland The Arctic is characterized by cold winters and cool summers Its precipitation mostly comes in the form of snow and is low with most of the area receiving less than 50 cm 20 in High winds often stir up snow creating the illusion of continuous snowfall Average winter temperatures can go as low as 40 C 40 F and the coldest recorded temperature is approximately 68 C 90 F Coastal Arctic climates are moderated by oceanic influences having generally warmer temperatures and heavier snowfalls than the colder and drier interior areas The Arctic is affected by current global warming leading to Arctic sea ice shrinkage diminished ice in the Greenland ice sheet and Arctic methane release as the permafrost thaws 9 The melting of Greenland s ice sheet is linked to polar amplification 10 Due to the poleward migration of the planet s isotherms about 56 km 35 mi per decade during the past 30 years as a consequence of global warming the Arctic region as defined by tree line and temperature is currently shrinking 11 Perhaps the most alarming result of this is Arctic sea ice shrinkage There is a large variance in predictions of Arctic sea ice loss with models showing near complete to complete loss in September from 2035 to some time around 2067 12 13 Flora and fauna EditArctic life is characterized by adaptation to short growing seasons with long periods of sunlight and cold dark snow covered winter conditions Plants Edit Arctic poppy in bloom within the Qausuittuq National Park on Bathurst Island Arctic vegetation is composed of plants such as dwarf shrubs graminoids herbs lichens and mosses which all grow relatively close to the ground forming tundra An example of a dwarf shrub is the bearberry As one moves northward the amount of warmth available for plant growth decreases considerably In the northernmost areas plants are at their metabolic limits and small differences in the total amount of summer warmth make large differences in the amount of energy available for maintenance growth and reproduction Colder summer temperatures cause the size abundance productivity and variety of plants to decrease Trees cannot grow in the Arctic but in its warmest parts shrubs are common and can reach 2 m 6 ft 7 in in height sedges mosses and lichens can form thick layers In the coldest parts of the Arctic much of the ground is bare non vascular plants such as lichens and mosses predominate along with a few scattered grasses and forbs like the Arctic poppy Animals Edit See also List of Arctic cetaceansSee also the categories Fauna of the Arctic and Mammals of the Arctic Muskox A snowy owl Herbivores on the tundra include the Arctic hare lemming muskox and caribou They are preyed on by the snowy owl Arctic fox Grizzly bear and Arctic wolf The polar bear is also a predator though it prefers to hunt for marine life from the ice There are also many birds and marine species endemic to the colder regions Other terrestrial animals include wolverines moose Dall sheep ermines and Arctic ground squirrels Marine mammals include seals walrus and several species of cetacean baleen whales and also narwhals orcas and belugas An excellent and famous example of a ring species exists and has been described around the Arctic Circle in the form of the Larus gulls Natural resources EditSee also Natural resources of the Arctic and Petroleum exploration in the Arctic The Arctic includes copious natural resources oil gas minerals fresh water fish and if the subarctic is included forest to which modern technology and the economic opening up of Russia have given significant new opportunities The interest of the tourism industry is also on the increase The Arctic contains some of the last and most extensive continuous wilderness areas in the world and its significance in preserving biodiversity and genotypes is considerable The increasing presence of humans fragments vital habitats The Arctic is particularly susceptible to the abrasion of groundcover and to the disturbance of the rare breeding grounds of the animals that are characteristic to the region The Arctic also holds 1 5 of the Earth s water supply 14 Paleontology Edit Marine fossils in Canadian Arctic During the Cretaceous time period the Arctic still had seasonal snows though only a light dusting and not enough to permanently hinder plant growth Animals such as the Chasmosaurus Hypacrosaurus Troodon and Edmontosaurus may have all migrated north to take advantage of the summer growing season and migrated south to warmer climes when winter came A similar situation may also have been found amongst dinosaurs that lived in Antarctic regions such as the Muttaburrasaurus of Australia However others claim that dinosaurs lived year round at very high latitudes such as near the Colville River which is now at about 70 N but at the time 70 million years ago was 10 further north 15 Indigenous population EditMain article Circumpolar peoples Further information Indigenous peoples of Siberia and Inuit Circumpolar Council Circumpolar coastal human population distribution c 2009 includes indigenous and non indigenous The earliest inhabitants of North America s central and eastern Arctic are referred to as the Arctic small tool tradition AST and existed c 2500 BCE AST consisted of several Paleo Eskimo cultures including the Independence cultures and Pre Dorset culture 16 17 The Dorset culture Inuktitut Tuniit or Tunit refers to the next inhabitants of central and eastern Arctic The Dorset culture evolved because of technological and economic changes during the period of 1050 550 BCE With the exception of the Quebec Labrador peninsula the Dorset culture vanished around 1500 CE 18 Supported by genetic testing evidence shows that descendants of the Dorset culture known as the Sadlermiut survived in Aivilik Southampton and Coats Islands until the beginning of the 20th century 19 The Dorset Thule culture transition dates around the ninth 10th centuries CE Scientists theorize that there may have been cross contact of the two cultures with sharing of technology such as fashioning harpoon heads or the Thule may have found Dorset remnants and adapted their ways with the predecessor culture 20 Others believe the Thule displaced the Dorset By 1300 CE the Inuit present day Arctic inhabitants and descendants of Thule culture had settled in west Greenland and moved into east Greenland over the following century Inughuit Kalaallit and Tunumiit are modern Greenlandic Inuit groups descended from Thule Over time the Inuit have migrated throughout the Arctic regions of Eastern Russia the United States Canada and Greenland 21 Other Circumpolar North indigenous peoples include the Chukchi Evenks Inupiat Khanty Koryaks Nenets Sami Yukaghir Gwich in and Yupik International cooperation and politics EditMain article Arctic cooperation and politics Polar bears on the sea ice of the Arctic Ocean near the North Pole USS Honolulu pictured The eight Arctic nations Canada Kingdom of Denmark Greenland amp The Faroe Islands Finland Iceland Norway Sweden Russia and USA are all members of the Arctic Council as are organizations representing six indigenous populations The council operates on consensus basis mostly dealing with environmental treaties and not addressing boundary or resource disputes Though Arctic policy priorities differ every Arctic nation is concerned about sovereignty defense resource development shipping routes and environmental protection 22 Much work remains on regulatory agreements regarding shipping tourism and resource development in Arctic waters 23 Arctic shipping is subject to some regulatory control through the International Code for Ships Operating in Polar Waters adopted by the International Maritime Organization on 1 January 2017 and applies to all ships in Arctic waters over 500 tonnes 24 25 Research in the Arctic has long been a collaborative international effort evidenced by the International Polar Year The International Arctic Science Committee hundreds of scientists and specialists of the Arctic Council and the Barents Euro Arctic Council are more examples of collaborative international Arctic research 26 Territorial claims Edit Main article Territorial claims in the Arctic No country owns the geographic North Pole or the region of the Arctic Ocean surrounding it The surrounding six Arctic states that border the Arctic Ocean Canada Kingdom of Denmark with Greenland Iceland Norway Russia and the United States are limited to a 200 nautical miles 370 km 230 mi exclusive economic zone EEZ off their coasts Two Arctic states Finland and Sweden do not have direct access to the Arctic Ocean Upon ratification of the United Nations Convention on the Law of the Sea a country has ten years to make claims to an extended continental shelf beyond its 200 nautical mile zone 22 27 Due to this Norway which ratified the convention in 1996 28 Russia ratified in 1997 28 Canada ratified in 2003 28 and the Kingdom of Denmark ratified in 2004 28 launched projects to establish claims that certain sectors of the Arctic seabed should belong to their territories On 2 August 2007 two Russian bathyscaphes MIR 1 and MIR 2 for the first time in history descended to the Arctic seabed beneath the North Pole and placed there a Russian flag made of rust proof titanium alloy The flag placing during Arktika 2007 generated commentary on and concern for a race for control of the Arctic s vast hydrocarbon resources 29 Map of the Arctic region showing the Northeast Passage the Northern Sea Route within it and the Northwest Passage Foreign ministers and other officials representing Canada the Kingdom of Denmark Norway Russia and the United States met in Ilulissat Greenland on 28 May 2008 at the Arctic Ocean Conference and announced the Ilulissat Declaration 30 31 blocking any new comprehensive international legal regime to govern the Arctic Ocean and pledging the orderly settlement of any possible overlapping claims 22 32 As of 2012 the Kingdom of Denmark is claiming the continental shelf based on the Lomonosov Ridge between Greenland and over the North Pole to the northern limit of the Russian EEZ 33 The Russian Federation is also claiming a large swath of seabed along the Lomonosov Ridge but unlike Denmark confined its claim to its side of the Arctic In August 2015 Russia made a supplementary submission for the expansion of the external borders of its continental shelf in the Arctic Ocean asserting that the eastern part of the Lomonosov Ridge and the Mendeleyev Ridge are an extension of the Eurasian continent In August 2016 the UN Commission on the Limits of the Continental Shelf began to consider Russia s submission 34 Canada claims the Northwest Passage as part of its internal waters belonging to Canada while the United States and most maritime nations 35 regards it as an international strait which means that foreign vessels have right of transit passage 36 Exploration Edit Main article Arctic exploration See also Petroleum exploration in the Arctic Since 1937 the larger portion of the Asian side Arctic region has been extensively explored by Soviet and Russian crewed drifting ice stations Between 1937 and 1991 88 international polar crews established and occupied scientific settlements on the drift ice and were carried thousands of kilometres by the ice flow 37 Pollution Edit Main articles Pollution in the Arctic Ocean and Arctic haze Long range pollution pathways to the Arctic The Arctic is comparatively clean although there are certain ecologically difficult localized pollution problems that present a serious threat to people s health living around these pollution sources Due to the prevailing worldwide sea and air currents the Arctic area is the fallout region for long range transport pollutants and in some places the concentrations exceed the levels of densely populated urban areas An example of this is the phenomenon of Arctic haze which is commonly blamed on long range pollutants Another example is with the bioaccumulation of PCB s polychlorinated biphenyls in Arctic wildlife and people Preservation Edit Main article Save the Arctic There have been many proposals to preserve the Arctic over the years Most recently a group of stars at the Rio Earth Summit on 21 June 2012 proposed protecting the Arctic similar to the Antarctic protection The initial focus of the campaign will be a UN resolution creating a global sanctuary around the pole and a ban on oil drilling and unsustainable fishing in the Arctic 38 The Arctic has climate change rates that are amongst the highest in the world Due to the major impacts to the region from climate change the near climate future of the region will be extremely different under all scenarios of warming 39 Global warming EditMain article Global warming in the Arctic Arctic sea ice coverage as of 2007 compared to 2005 and compared to 1979 2000 average The effects of global warming in the Arctic include rising temperatures loss of sea ice and melting of the Greenland ice sheet Potential methane release from the region especially through the thawing of permafrost and methane clathrates is also a concern Because of the amplified response of the Arctic to global warming it is often seen as a leading indicator of global warming The melting of Greenland s ice sheet is linked to polar amplification 40 41 The Arctic is especially vulnerable to the effects of any climate change as has become apparent with the reduction of sea ice in recent years Climate models predict much greater warming in the Arctic than the global average 42 resulting in significant international attention to the region In particular there are concerns that Arctic shrinkage a consequence of melting glaciers and other ice in Greenland could soon contribute to a substantial rise in sea levels worldwide 43 The current Arctic warming is leading to ancient carbon being released from thawing permafrost leading to methane and carbon dioxide production by micro organisms 44 45 Release of methane and carbon dioxide stored in permafrost could cause abrupt and severe global warming 46 as they are potent greenhouse gases 47 The shrinking Arctic Parts of Norway inside the Arctic Circle has a temperate climate with the 1991 2020 normals such as Skrova near Svolvaer with mean annual temperature of 6 C 43 F four months above 10 C and no month below 0 C 32 F 48 Climate change is also predicted to have a large impact on tundra vegetation causing an increase of shrubs 49 and having a negative impact on bryophytes and lichens 50 Apart from concerns regarding the detrimental effects of warming in the Arctic some potential opportunities have gained attention The melting of the ice is making the Northwest Passage the shipping routes through the northernmost latitudes more navigable raising the possibility that the Arctic region will become a prime trade route 51 One harbinger of the opening navigability of the Arctic took place in the summer of 2016 when the Crystal Serenity successfully navigated the Northwest Passage a first for a large cruise ship 52 In addition it is believed that the Arctic seabed may contain substantial oil fields which may become accessible if the ice covering them melts 53 These factors have led to recent international debates as to which nations can claim sovereignty or ownership over the waters of the Arctic 54 55 56 57 Arctic waters EditArctic Ocean Baffin Bay Beaufort Sea Barents Sea Bering Sea Bering Strait Chukchi Sea Davis Strait Denmark Strait East Siberian Sea Greenland Sea Hudson Bay Kara Sea Laptev Sea Nares Strait Norwegian SeaArctic lands EditThis section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed July 2014 Learn how and when to remove this template message Baffin Island Nunavut Uummannaq Island Greenland Nenets reindeer herders in the Yamalo Nenets Autonomous Okrug Kotzebue Alaska Murmansk on Russia s Kola Peninsula is the largest city in the world north of the Arctic Circle Geographic Designation National Affiliation DesignationAlaska United States StateAleutian Islands United States American ArchipelagoArkhangelsk Oblast Russia Federal subjectArctic Archipelago Canada Canadian ArchipelagoChukotka Autonomous Okrug Russia Federal subjectDiomede Island Big Russia IslandDiomede Island Little United States IslandFinnmark Norway CountyFranz Josef Land Russia Federal subject archipelagoGreenland Kingdom of Denmark Autonomous countryGrimsey Iceland IslandJan Mayen Norway IslandKitikmeot Canada Administrative RegionKivalliq Canada Administrative RegionKrasnoyarsk Krai Russia Federal subjectLapland Finland RegionLapland Sweden ProvinceMurmansk Oblast Russia Federal subjectNenets Autonomous Okrug Russia Federal subjectNew Siberian Islands Russia ArchipelagoNordland Norway CountyNorrbotten Sweden ProvinceNorthwest Territories Canada TerritoryNovaya Zemlya Russia Federal subject archipelagoNunavik Canada Northern part of QuebecNunatsiavut Canada Autonomous Region of LabradorNunavut Canada TerritoryQikiqtaaluk Baffin Canada Administrative RegionRussian Arctic islands Russia IslandsSapmi Norway Sweden Finland Russia Fennoscandia regionSakha Republic Russia Federal subjectSevernaya Zemlya Russia Federal subject archipelagoSiberia Russia RegionSvalbard Norway Governor of Svalbard archipelagoTroms Norway CountyYukon Canada TerritoryYamalo Nenets Autonomous Okrug Russia Federal subjectWrangel Island Russia Zapovednik nature reserve See also Edit Geography portalArctic Search and Rescue Agreement List of countries by northernmost point Arctic sanctuary Poverty in the Arctic Arctic Winter Games Winter CityNotes Edit The word was originally pronounced without the k sound but the pronunciation with the k sound is nowadays very common The c was added to the spelling for etymological reasons 1 2 and then began to be pronounced References Edit a b The American Heritage Dictionary entry arctic www ahdictionary com Houghton Mifflin Harcourt Archived from the original on 12 June 2018 Retrieved 4 January 2019 Harper Douglas Antarctic Online Etymology Dictionary Retrieved 16 November 2011 Christopher Krembs and Jody Deming Organisms that thrive in Arctic sea ice National Oceanic and Atmospheric Administration 18 November 2006 Liddell Henry George and Scott Robert Arktikos A Greek English Lexicon Perseus Digital Library Liddell Henry George and Scott Robert Arktos A Greek English Lexicon Perseus Digital Library The Great Bear Constellation Ursa Major Archived from the original on 30 November 2010 Retrieved 10 November 2010 arctic Dictionary com Unabridged v 1 1 Random House Inc Retrieved 2 May 2009 Addison Kenneth 2002 Fundamentals of the physical environment Routledge p 482 ISBN 978 0 415 23293 7 Radford Tim 2 September 2020 Arctic heating races ahead of worst case estimates Climate News Network Retrieved 3 September 2020 Tedesco M Mote T Fettweis X Hanna E Jeyaratnam J Booth J F Datta R Briggs K 9 June 2016 Arctic cut off high drives the poleward shift of a new Greenland melting record Nature Communications 7 11723 Bibcode 2016NatCo 711723T doi 10 1038 ncomms11723 ISSN 2041 1723 PMC 4906163 PMID 27277547 Hansen Jim 19 October 2006 The Planet in Peril Part I Yale Center for the Study of Globalization Archived from the original on 15 October 2009 Kirby Alex 11 August 2020 End of Arctic sea ice by 2035 possible study finds Climate News Network Retrieved 3 September 2020 Reich Katharine 15 November 2019 Arctic Ocean could be ice free for part of the year as soon as 2044 phys org Retrieved 3 September 2020 Society National Geographic 6 October 2016 Arctic National Geographic Society Retrieved 11 June 2020 A paleontologists Alaskan adventure New Scientist 9 June 2012 Retrieved 30 March 2022 Hoffecker John F 2005 A prehistory of the north human settlement of the higher latitudes Rutgers University Press p 130 ISBN 978 0 8135 3469 5 Gibbon pp 28 31 Gibbon pp 216 217 McGhee Robert 2005 The last imaginary place a human history of the Arctic world Digitized 7 October 2008 ed Oxford University Press p 55 ISBN 978 0 19 518368 9 Gibbon p 218 First Nations Culture Areas Index the Canadian Museum of Civilization a b c Buixade Farre Albert Stephenson Scott R Chen Linling Czub Michael Dai Ying Demchev Denis Efimov Yaroslav Graczyk Piotr Grythe Henrik Keil Kathrin Kivekas Niku Kumar Naresh Liu Nengye Matelenok Igor Myksvoll Mari O Leary Derek Olsen Julia Pavithran A P Sachin Petersen Edward Raspotnik Andreas Ryzhov Ivan Solski Jan Suo Lingling Troein Caroline Valeeva Vilena van Rijckevorsel Jaap Wighting Jonathan 16 October 2014 Commercial Arctic shipping through the Northeast Passage Routes resources governance technology and infrastructure Polar Geography 37 4 298 doi 10 1080 1088937X 2014 965769 Berkman Paul 23 June 2014 Stability and Peace in the Arctic Ocean through Science Diplomacy Science amp Diplomacy 3 2 Shipping in polar waters IMO Retrieved 2 August 2021 The Polar Code One Year On The Maritime Executive Retrieved 2 August 2021 King Lorenz 1992 Polarregionen vom Neuland zum wissenschaftlichen Brennpunkt Polar regions from uncharted territory to scientific focus Giessener Diskurse Wissenschaft und Neues Weltbild in German 6 7 231 256 ISBN 3 927835 25 0 United Nations Convention on the Law of the Sea Annex 2 Article 4 Archived from the original on 16 July 2007 Retrieved 26 July 2007 a b c d Chronological lists of ratifications of accessions and successions to the Convention and the related Agreements United Nations Division for Ocean Affairs and the Law of the Sea 22 April 2009 Archived from the original on 14 April 2009 Retrieved 30 April 2009 Yenikeyeff S M and Fenton Krysiek Timothy August 2007 The Battle for the Next Energy Frontier The Russian Polar Expedition and the Future of Arctic Hydrocarbons Oxford Institute for Energy Studies Archived 10 July 2011 at the Wayback Machine Conference in Ilulissat Greenland Landmark political declaration on the future of the Arctic Ministry of Foreign Affairs of Denmark 28 May 2008 Retrieved 30 April 2009 dead link The Ilulissat Declaration PDF Ministry of Foreign Affairs of Denmark 28 May 2008 Archived from the original PDF on 26 June 2008 Retrieved 6 June 2008 Boswell Randy 28 May 2008 Conference could mark start of Arctic power struggle canada com Archived from the original on 4 March 2009 Retrieved 6 June 2008 Dansker vil dokumentere territorialkrav i Arktis in Norwegian NRK 28 July 2012 Retrieved 15 June 2015 Russia claims the application for expansion of Danish borders in the Arctic shelf 23 January 2017 The Edmonton Journal 9 April 2006 Northwest Passage gets political name change Canada com Archived from the original on 2 April 2016 Retrieved 31 May 2015 The US is picking a fight with Canada over a thawing Arctic shipping route Quartz 27 June 2019 North Pole drifting stations 1930s 1980s Woods Hole Oceanographic Institution Retrieved 30 April 2009 Stars launch campaign to save the Arctic Greenpeace 21 June 2012 IPCC Cross Chapter Paper 6 Polar Regions IPCC WGII Sixth Assessment Report 1 October 2021 https report ipcc ch ar6wg2 pdf IPCC AR6 WGII CrossChapterPaper6 pdf Archived 28 February 2022 at the Wayback Machine Study links 2015 melting Greenland ice to faster Arctic warming 9 June 2016 University of Georgia Tedesco M Mote T Fettweis X Hanna E Jeyaratnam J Booth J F Datta R Briggs K 2016 Arctic cut off high drives the poleward shift of a new Greenland melting record Nature Communications 7 11723 Bibcode 2016NatCo 711723T doi 10 1038 ncomms11723 PMC 4906163 PMID 27277547 Impacts of a warming Arctic Arctic Climate Impact Assessment Cambridge UK Cambridge University Press February 2005 ISBN 978 0 521 61778 9 Retrieved 20 November 2006 Grinberg Emanuella 17 December 2008 Ice melting across globe at accelerating rate NASA says CNN Retrieved 30 March 2022 Lenton T M Held H Kriegler E Hall J W Lucht W Rahmstorf S Schellnhuber H J 2008 Inaugural Article Tipping elements in the Earth s climate system Proceedings of the National Academy of Sciences 105 6 1786 93 Bibcode 2008PNAS 105 1786L doi 10 1073 pnas 0705414105 PMC 2538841 PMID 18258748 Turetsky Merritt R 30 April 2019 Permafrost collapse is accelerating carbon release Nature 569 7754 32 34 Bibcode 2019Natur 569 32T doi 10 1038 d41586 019 01313 4 PMID 31040419 Abrupt Climate Change Focus Of U S National Laboratories Science Daily 23 September 2008 a href Template Cite web html title Template Cite web cite web a CS1 maint url status link Reuters 18 June 2019 Scientists shocked by Arctic permafrost thawing 70 years sooner than predicted The Guardian ISSN 0261 3077 Retrieved 2 July 2019 a href Template Cite news html title Template Cite news cite news a last has generic name help Skrova climate statistics yr no Retrieved 2021 11 09 Myers Smith Isla H Forbes Bruce C Wilmking Martin Hallinger Martin Lantz Trevor Blok Daan Tape Ken D Macias Fauria Marc Sass Klaassen Ute 1 January 2011 Shrub expansion in tundra ecosystems dynamics impacts and research priorities Environmental Research Letters 6 4 045509 Bibcode 2011ERL 6d5509M doi 10 1088 1748 9326 6 4 045509 ISSN 1748 9326 Alatalo Juha M Jagerbrand Annika K Molau Ulf 1 November 2015 Testing reliability of short term responses to predict longer term responses of bryophytes and lichens to environmental change Ecological Indicators 58 77 85 doi 10 1016 j ecolind 2015 05 050 Will ice melt open fabled Northwest Passage Archived 9 November 2007 at the Wayback Machine CNN 29 August 2002 Largest Cruise Ship Ever To Sail Northwest Passage Docks In NYC 16 September 2016 Retrieved 24 September 2016 Demos Telis The great Arctic Circle oil rush CNN 8 August 2007 Shaw Rob New patrol ships will reassert northern sovereignty PM Victoria Times Colonist 9 July 2007 Halpin Tony Russia stakes its claim on North Pole in underwater search for oil The Times 28 July 2007 Arctic melt stuns scientists CBS News 9 October 2007 permanent dead link Conference could mark start of Arctic power struggle Canada com 28 May 2008 Archived from the original on 4 March 2009 Bibliography EditGibbon Guy E Kenneth M Ames 1998 Archaeology of prehistoric native America an encyclopedia Vol 1537 of Garland reference library of the humanities Taylor amp Francis ISBN 978 0 8153 0725 9 Further reading EditBrian W Coad James D Reist 2017 Marine Fishes of Arctic Canada University of Toronto Press ISBN 978 1 4426 4710 7 Global Security Climate Change and the Arctic Archived 29 December 2017 at the Wayback Machine 24 page special journal issue Fall 2009 Swords and Ploughshares Program in Arms Control Disarmament and International Security ACDIS University of Illinois GLOBIO Human Impact maps Report on human impacts on the Arctic Krupnik Igor Michael A Lang and Scott E Miller eds Smithsonian at the Poles Contributions to International Polar Year Science Washington D C Smithsonian Institution Scholarly Press 2009 Konyshev Valery amp Sergunin Alexander The Arctic at the Crossroads of Geopolitical Interests Russian Politics and Law 2012 Vol 50 No 2 pp 34 54 Kapyla Juha amp Mikkola Harri The Global Arctic The Growing Arctic Interests of Russia China the United States and the European Union Archived 15 September 2013 at the Wayback Machine FIIA Briefing Paper 133 August 2013 The Finnish Institute of International Affairs Konyshev Valery amp Sergunin Alexander The Arctic at the crossroads of geopolitical interests Russian Politics and Law 2012 Vol 50 No 2 p 34 54 Konyshev Valery amp Sergunin Alexander Is Russia a revisionist military power in the Arctic Defense amp Security Analysis September 2014 Konyshev Valery amp Sergunin Alexander Russia in search of its Arctic strategy between hard and soft power Polar Journal April 2014 McCannon John A History of the Arctic Nature Exploration and Exploitation Reaktion Books and University of Chicago Press 2012 ISBN 9781780230184 O Rourke Ronald 14 October 2016 Changes in the Arctic Background and Issues for Congress PDF Washington DC Congressional Research Service Archived PDF from the original on 9 October 2022 Retrieved 20 October 2016 Sperry Armstrong 1957 All About the Arctic and Antarctic Random House LCCN 57007518 External links EditArctic at Wikipedia s sister projects Definitions from Wiktionary Media from Commons News from Wikinews Quotations from Wikiquote Texts from Wikisource Travel information from Wikivoyage Data from Wikidata Arctic Report Card Blossoming Arctic International Arctic Research Center Retrieved from https en wikipedia org w index php title Arctic amp oldid 1136624536, wikipedia, wiki, book, books, library,

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