Arctic

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 (/ˈɑːr(k)tɪk/;[1][Note 1] from Ancient Greek ἄρκτος (árktos) 'bear') is the polar region of Earth that surrounds the North Pole, lying within the Arctic Circle. The Arctic region, from the IERS Reference Meridian travelling east, consists of parts of northern Norway (Nordland, Troms, Finnmark, Svalbard and Jan Mayen), northernmost Sweden (Västerbotten, Norrbotten and Lappland), northern Finland (North Ostrobothnia, Kainuu and Lappi), Russia (Murmansk, Siberia, Nenets Okrug, Novaya Zemlya), the United States (Alaska), Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), and northern Iceland (Grímsey and Kolbeinsey), along with the Arctic Ocean and adjacent seas.

Land within the Arctic region has seasonally varying snow and ice cover, with predominantly treeless permafrost under the tundra. Arctic seas contain seasonal sea ice in many places.

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.

  1. ^ a b "arctic". The American Heritage Dictionary of the English Language (5th ed.). HarperCollins. Retrieved 4 January 2019. "The American Heritage Dictionary entry: Arctic". Archived from the original on 12 June 2018. Retrieved 11 November 2016.{{cite web}}: CS1 maint: bot: original URL status unknown (link).
  2. ^ Harper, Douglas. "arctic". Online Etymology Dictionary. Retrieved 16 November 2011. "Arctic - Etymology, Origin & Meaning". Archived from the original on 13 January 2012. Retrieved 27 November 2015.{{cite web}}: CS1 maint: bot: original URL status unknown (link).
  3. ^ Krembs, Christopher; Deming, Jody (18 November 2006). "Organisms that thrive in Arctic sea ice". NOAA. Archived from the original on 23 March 2010.


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