This summer, a long-lasting warm spell on the heals of an unusually early spring ice melt across northern Russia has caused a delay in the formation of fast ice this fall across the Laptev Sea, which is that portion of the Arctic Ocean adjacent to the Siberian coast. This is, in fact, the first time in recorded history that sea ice has failed to form in the region of Earth by late October. The last 14 years are the 14 years of the smallest Arctic ice extent since the satellite record began in 1979.
Open water absorbs more sunlight than ice. Thin ice melts faster than thick ice. Both of these factors are positive feedback loops that encourage additional ice cap shrinkage. It is estimated that the Arctic Ocean will be ice-free in summer before 2050. The rapid warming of the Arctic is expected to speed up climate change in the rest of the world, causing oceans to rise and temperatures to warm significantly.
October 26, 2020 at 05:00PM
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WeatherTalk: The Laptev Sea is still unfrozen this fall - Grand Forks Herald
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