Search results
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 Arctic Circle, roughly 67° north of the Equator, defines the boundary of the arctic seas and lands. The Arctic Circle is one of the two polar circles, and the most northerly of the five major circles of latitude as shown on maps of Earth at about 66° 34' N. [1] Its southern equivalent is the Antarctic Circle .
Jul 11, 2024 · Arctic, northernmost region of Earth, centred on the North Pole and characterized by distinctively polar conditions of climate, plant and animal life, and other physical features. The term is derived from the Greek arktos (“bear”), referring to the northern constellation of the Bear.
Oct 19, 2023 · The Arctic is the northernmost region of Earth. Most scientists define the Arctic as the area within the Arctic Circle, a line of latitude about 66.5° north of the Equator. Within this circle are the Arctic ocean basin and the northern parts of Scandinavia, Russia, Canada, Greenland, and the U.S. state of Alaska.
The Arctic consists of ocean that is largely surrounded by land. As such, the climate of much of the Arctic is moderated by the ocean water, which can never have a temperature below −2 °C (28 °F).
Antarctica is colder than the Arcticregion, as much of Antarctica is over 3,000 m (9,800 ft) above sea level, where air temperatures are colder. The relative warmth of the Arctic Oceanis transferred through the Arctic sea iceand moderates temperatures in the Arctic region. [75]
The Arctic is a frozen ocean surrounded by land that has been covered in ice year-round for the last 5,500 years. Its diverse landscapes—from sea ice to coastal wetlands, tundra, mountains, wide rivers and the sea itself—support abundant wildlife, including emblematic species like the polar bear, bowhead whale and narwhal.
NOAA's diverse activities in the Arctic provides science, service, and stewardship that supports people and commerce. During the past thirty years, the Arctic environment has undergone profound and unprecedented changes.
Mar 29, 2019 · The Arctic Ocean is Earth's northernmost body of water. It encircles the Arctic, and flows beneath it. Most of the Arctic Ocean is covered by ice throughout the year—although that is starting...
The Antarctic ( / ænˈtɑːrtɪk / or / ænˈtɑːrktɪk /, American English also / æntˈɑːrtɪk / or / æntˈɑːrktɪk /; commonly / æˈnɑːrtɪk /) [Note 1] is a polar region around Earth 's South Pole, opposite the Arctic region around the North Pole .
