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Arctic ice pack
The Arctic ice pack is the drifting sea ice covering the Arctic Ocean and adjoining seas, floating on the ocean and reaching its minimum extent each September.
Arctic LNG 2
Arctic LNG 2 (Арктик СПГ 2) is a Russian LNG project on the Gydan Peninsula, developed by NOVATEK with 19.8 million tons of annual capacity.
Arctic LNG 2 Terminal power station
The Arctic LNG 2 Terminal power station is a 1,500 MW gas-fired power plant in Russia, ordered by Novatek in 2022 to serve the Arctic LNG 2 project.
Arctic methane emissions
Arctic methane emissions from wetlands, lakes, thawing permafrost, and shallow seafloor sediments; boreal-Arctic wetlands and lakes emit about 34 Tg CH4 yearly, and the East Siberian Arctic Shelf stores roughly 1400 Gt of methane beneath subsea permafrost.
Arctic Monkeys
Arctic Monkeys, an English rock band formed in 2002 in High Green, Sheffield (Alex Turner, Jamie Cook, Matt Helders, Nick O'Malley), hold the fastest-selling UK debut album, six UK number 1 albums, 7 Brit Awards, and the AM-era hit Do I Wanna Know?
Arctic Monkeys discography
The Arctic Monkeys discography covers seven studio albums by the English rock band from Sheffield, six of which topped the UK chart between 2006 and 2018.
Arctic National Wildlife Refuge
The Arctic National Wildlife Refuge is the largest unit of the National Wildlife Refuge System, a roadless 19.64-million-acre wilderness in northeastern Alaska established in 1960.
Arctic Ocean
The Arctic Ocean is the pole-centered, land-enclosed ocean, about 4,000 m deep and divided by the Lomonosov Ridge, covered by thin sea ice that is rapidly thinning and shrinking, with gateways at Fram Strait, Barents Sea Opening, and Bering Strait.
Arctic Ocean circulation
Arctic Ocean circulation is the system of currents and water-mass transformations moving heat and freshwater between the North Atlantic and the ice-covered Arctic basin, driven by winds, river freshwater, and warm Atlantic inflow.
Arctic Ocean Soda
Arctic Ocean Soda (北冰洋, Beibingyang) is a Beijing orange soda brand dating to 1951, shelved in 1994 and relaunched in 2011 in its original glass bottle.
Arctic Oscillation
The Arctic Oscillation, also called the Northern Annular Mode, is a climate variability pattern where pressure over the Arctic fluctuates against mid-latitude pressure, reshaping winter weather across North America, Europe, and Asia.
Arctic sea ice
Arctic sea ice is the frozen seawater covering most of the Arctic Ocean, ranging from seasonal sheets to ridged multi-year floes that can circulate for seven to ten years.
Arctic sea ice decline
Arctic sea ice decline, also called Arctic ice shrinkage, is the long-term reduction in Arctic Ocean ice cover; September extent has fallen about 12 percent per decade since 1978.
Arctic Security Cutter program
The Arctic Security Cutter program is a United States Coast Guard acquisition program for medium polar icebreakers, alongside the larger Polar Security Cutter program for heavy icebreakers.
Arctic Sun medical device
Arctic Sun (Arctic Sun 5000, Medivance/Bard/BD) is a non-invasive temperature management system using circulating-water hydrogel pads for targeted temperature management after cardiac arrest, cooling at about 1.1°C/h.
Arctic tern
Arctic tern (Sterna paradisaea), a small Arctic-breeding seabird making the longest animal migration, about 70,900–96,000 km yearly between Arctic colonies and the Antarctic pack ice; Least Concern globally but declining in the UK.
Arctic wolf
Arctic wolf (Canis lupus arctos), also called polar or white wolf: a gray wolf subspecies of the Canadian Arctic islands and Greenland, white-coated with shorter ears and muzzle, preying on muskoxen, Peary caribou, and arctic hares; status least concern.
Arctica
Arctica, also called Arctida or Hyperborea, is a hypothesized Precambrian continent proposed to have occupied the Arctic region, first suggested by Nikolai Shatsky in 1935.
Arctica islandica
Arctica islandica, the ocean quahog or mahogany quahog, is a North Atlantic marine clam that can live more than 500 years, among the longest-lived animals precisely measured.
Arctium
Arctium (burdock) is a genus of about 10-11 biennial Asteraceae herbs native to temperate Eurasia, known for hooked burs that inspired Velcro, the edible and medicinal root of A. lappa, and introduced weedy status in North America.
Arctium lappa
Arctium lappa (greater burdock, gobō, niu bang 牛蒡) is a biennial Asteraceae herb native to temperate Eurasia, grown for its edible root in East Asia and studied medicinally for lignans arctiin and arctigenin.
Arctocephalus forsteri
Arctocephalus forsteri, the New Zealand fur seal or kekeno (long-nosed fur seal in Australia), is an otariid seal breeding in New Zealand and southern Australia; IUCN Least Concern, with a 2026 New Zealand estimate of 208,536–251,644 and West Coast colonies declining.
Arctocephalus pusillus
Arctocephalus pusillus, the brown fur seal, is the largest fur seal, with two subspecies: the Cape fur seal of southern Africa (1.5-2 million) and the Australian fur seal of Bass Strait (about 90,000).
Arctodus
Arctodus, the North American short-faced bears, an extinct tremarctine bear genus including the giant A. simus and lesser A. pristinus; long-legged, largely carnivorous scavengers that went extinct near the end of the Pleistocene.
Arctos Partners
Arctos Partners is a Dallas-based private equity firm founded in 2019 that buys passive minority stakes in professional sports teams; KKR acquired it in 2026 for $1.4 billion.
Arctostaphylos uva-ursi
Arctostaphylos uva-ursi, bearberry or kinnikinnick, an Ericaceae subshrub whose arbutin-rich leaves are used traditionally for mild urinary tract infection symptoms in women; EU monograph limits use to one week.
Arctowski Nunatak
Arctowski Nunatak (Polish: Nunatak Arctowskiego) is a rocky peak in the Seal Nunataks group off the east coast of the Antarctic Peninsula, charted in 1902 and named for Henryk Arctowski.
Arctowski Peak
Arctowski Peak, an ice-covered peak about 1,400 m high at the head of Howkins Inlet, Lassiter Coast, Palmer Land, Antarctica (73°44'S 61°25'W); seen by USAS in 1940, surveyed by FIDS in 1947, named for Henryk Arctowski.
Arctowski Peninsula
Arctowski Peninsula (Półwysep Arctowskiego), a small rocky peninsula on the Danco Coast of the northwestern Antarctic Peninsula between Andvord Bay and Wilhelmina Bay, about 30 km long, discovered in 1898 by the Belgian Antarctic Expedition and named for Henryk Arctowski.
Arcturus
Arcturus, also known as Alpha Boötis, is an orange-red giant star in Boötes about 36.7 light-years from Earth, the brightest star north of the celestial equator.