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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] 展开
The Arctic (from Greek ἄρκτος, 'bear') is a polar region located at the northernmost part of Earth. The Arctic region, from the IERS Reference Meridian travelling east, consists of parts of northern Norway (Nordland, 展开
Arctic life is characterized by adaptation to short growing seasons with long periods of sunlight, and cold, dark, snow-covered winter conditions. 展开
During the Cretaceous time period, the Arctic still had seasonal snows, though only a light dusting and not enough to permanently hinder plant … 展开
The earliest inhabitants of North America's central and eastern Arctic are referred to as the Arctic small tool tradition (AST) and existed c. 2500 BCE. AST … 展开
The climate of the Arctic region is characterized by cold winters and cool summers. Its precipitation mostly comes in the form of snow and is low, with most of the area receiving less … 展开
There are copious natural resources in the Arctic (oil, gas, minerals, fresh water, fish and, if the subarctic is included, forest) to which modern technology and the economic opening up of Russia have given significant new opportunities. The interest of the tourism … 展开
CC-BY-SA 许可证中的维基百科文本 Arctic | Definition, Climate, People, & Facts | Britannica
3 天之前 · 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 …
The Arctic - WWF Arctic
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 …
Arctic Weather and Climate | National Snow and Ice …
The interior regions of the Arctic lands have a continental climate. The weather is drier, with less snow in the winter and sunny summer days that can be very warm. Some areas get scant precipitation and are classified as polar deserts.
What happens in the Arctic doesn't stay in the Arctic: What the fast ...
6 天之前 · The Arctic is warming faster than any other area of the planet. How environmental change affects the landscape, weather patterns and infrastructure for communities—not just …
Climate change is causing dramatic impacts in the …
2023年12月12日 · The Arctic is warming nearly four times faster than the global average as a result of human-caused climate change, driven primarily by burning fossil fuels. Researchers say changes in the...
Arctic - Education | National Geographic Society
2023年10月19日 · 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 …
The Arctic Ocean—facts and information - National …
2019年3月29日 · Learn about the Arctic Ocean's geography, wildlife, climate, and human activities. Find out how warming temperatures are affecting the region and its people, and what challenges and opportunities lie ahead.
Arctic - Polar, Tundra, Climate | Britannica
3 天之前 · Arctic - Polar, Tundra, Climate: The climates of polar lands vary greatly depending on their latitude, proximity of the sea, elevation, and topography, but, even so, they all share certain “polar” characteristics. Owing to the high …
Arctic Report Card: Climate change transforming Arctic …
2021年12月14日 · NOAA’s 2021 Arctic Report Card documents the numerous ways that climate change continues to fundamentally alter this once reliably-frozen region, as increasing heat and the loss of ice drive its transformation …
