Agence France-PresseOct 29, 2020 09:07:58 IST
The extent of sea ice in the Arctic was at record lows for October, Danish researchers said Wednesday, adding the unusually warm season meant it was not recovering as fast as normal.
"The October Arctic sea ice extent is going to be the lowest on record and the sea ice growth rate is slower than normal," Rasmus Tonboe, a scientist at the Danish Meteorogical Institute (DMI), told AFP, noting that records went back to 1979.
Already in September researchers noted the second-lowest extent of sea ice recorded in the Arctic, though not quite hitting the levels recorded in 2012.
But warmer-than-normal seawater slowed the formation of new ice in October.
Water temperatures in the eastern part of the Arctic, north of Siberia, was two to four degrees warmer than normal, and in the Baffin Bay, it was one to two degrees warmer, DMI said in a statement.
The institute said this was following a trend observed in recent years, which was described as a "vicious spiral."
"It's a trend we’ve been seeing the past years, with a longer open water season making the sun warm the sea for a longer time, resulting in shorter winters so the ice doesn't grow as thick as it used to," Tonboe said.
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