Antarctica vs. the Arctic: Key Differences

While both are polar regions, Antarctica and the Arctic are fundamentally different in geography, climate, and human presence.

FeatureArcticAntarctica
GeographyOcean (Arctic Ocean) surrounded by land (Eurasia, North America, Greenland)Continent (landmass) surrounded by ocean (Southern Ocean)
IceSea ice (frozen ocean), seasonal; thickness 1–5 mContinental ice sheet up to 4.8 km thick, covering 98% of land
TemperatureWinter: −34°C avg; Summer: 0–10°C (coastal)Coldest place on Earth: −60°C winter avg (interior); −20°C coast summer
PrecipitationLow (150–250 mm/yr); "polar desert"Extremely low (50 mm/yr interior); driest continent
Human Presence4 million+ residents (indigenous peoples, cities: Murmansk, Tromsø, Barrow, Nuuk)No permanent residents; 1,000–5,000 seasonal researchers at stations
GovernanceArctic Council (8 nations + indigenous orgs); national laws applyAntarctic Treaty System (1959): demilitarized, scientific preserve, no sovereignty
WildlifePolar bear, Arctic fox, reindeer, walrus, migratory birdsPenguins (emperor, Adélie), seals, whales, seabirds; no land mammals

Bottom line: The Arctic is a frozen ocean with land around it and permanent human societies. Antarctica is a frozen continent, isolated, far colder, and devoted to science.

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