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A map of the Arctic. The red line is the 10 °C isotherm in July, commonly used to define the Arctic region; also shown is the Arctic Circle. The white area shows the average minimum extent of sea ice in summer as of 1975. [1] The climate of the Arctic is characterized by long, cold winters
The Arctic sea ice minimum is the day in a given year when Arctic sea ice reaches its smallest extent, occurring at the end of the summer melting season, normally during September. Arctic Sea ice maximum is the day of a year when Arctic sea ice reaches its largest extent near the end of the Arctic cold season, normally during March. [14]
The 24-hour daylight of the Arctic summer attracts visitors from afar, including huge flocks of seabirds like the crested auklet. A male must use both his song and a secret tangerine perfume if he is to attract a mate. For the resident walrus, the summer heat can be unbearable. After hauling himself to the beach to moult, an old male uses an ...
The first arctic outbreak of the season is allowing temperatures to plunge across the eastern half of the country, creating "dangerously cold" wind chills of 15-30 degrees below zero in the ...
An unusually cold weather system from the Gulf of Alaska interrupted summer along the West Coast on Saturday, bringing snow to mountains in California and the Pacific Northwest and prompting the ...
The window has closed to prevent the melting of summer Arctic Sea ice due to human-caused climate change, according to a study published Tuesday in the journal Nature Communications. The research ...
Visualization of the ice and snow covering Earth's northern and southern polar regions Northern Hemisphere permafrost (permanently frozen ground) in purple. The polar regions, also called the frigid zones or polar zones, of Earth are Earth's polar ice caps, the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles.
According to the National Weather Service, a powerful Arctic cold front will sweep the northeastern U.S. Thursday. "Expect brief, intense bursts of heavy snowfall and gusty winds.