While both are polar regions, Antarctica and the Arctic are fundamentally different in geography, climate, and human presence.
| Feature | Arctic | Antarctica |
|---|---|---|
| Geography | Ocean (Arctic Ocean) surrounded by land (Eurasia, North America, Greenland) | Continent (landmass) surrounded by ocean (Southern Ocean) |
| Ice | Sea ice (frozen ocean), seasonal; thickness 1–5 m | Continental ice sheet up to 4.8 km thick, covering 98% of land |
| Temperature | Winter: −34°C avg; Summer: 0–10°C (coastal) | Coldest place on Earth: −60°C winter avg (interior); −20°C coast summer |
| Precipitation | Low (150–250 mm/yr); "polar desert" | Extremely low (50 mm/yr interior); driest continent |
| Human Presence | 4 million+ residents (indigenous peoples, cities: Murmansk, Tromsø, Barrow, Nuuk) | No permanent residents; 1,000–5,000 seasonal researchers at stations |
| Governance | Arctic Council (8 nations + indigenous orgs); national laws apply | Antarctic Treaty System (1959): demilitarized, scientific preserve, no sovereignty |
| Wildlife | Polar bear, Arctic fox, reindeer, walrus, migratory birds | Penguins (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.