Antarctic sea ice extent reaches all-time low: EU monitor | Local weather Disaster Information
Diminished ice cowl is a serious concern as a result of it helps speed up international warming.
ice within the antarctic sea reached its lowest month-to-month extent in February, breaking a earlier document from 2017, the European Union’s local weather monitoring service has mentioned.
In a report launched on Tuesday, the Copernicus Local weather Change Service (C3S) mentioned that Antarctic sea ice shrunk 34 p.c beneath the typical for February.
“Our newest knowledge present that Antarctic sea ice reached its lowest extent within the 45-year satellite tv for pc knowledge document,” mentioned C3S’s Deputy Director Samantha Burgess. “These low sea ice situations might have vital implications for the steadiness of Antarctic ice cabinets and in the end for international sea degree rise.”
The report additionally mentioned that winter was the “joint second warmest on document for Europe, with a lot above-average temperatures over japanese Europe and elements of northeastern Europe”.
For a lot of western and southeastern Europe, the winter was drier than common, added the report.
Diminished ice cowl is a serious concern as a result of it helps speed up international warming,
About 90 p.c of the solar’s power that hits white sea ice is mirrored again into area. However when daylight hits darkish, unfrozen ocean water, almost the identical quantity of that power is absorbed as a substitute, contributing on to a warming planet.
Each the North and South Pole areas have warmed by roughly three levels Celsius in contrast with late Nineteenth-century ranges – 3 times the worldwide common.
However in contrast to sea ice within the northern Arctic, which has diminished by three p.c a yr for the reason that late Seventies, sea ice within the south in Antarctica has remained comparatively fixed over the identical interval, albeit with giant annual variations.
Over the past eight years, nonetheless, the minimal sea ice extent within the Antarctic Ocean has been persistently beneath the typical for the 1991–2020 interval.
Antarctica encountered its first recorded heatwave in 2020, with an unprecedented 9.2C above the imply most. In March final yr, a analysis heart in japanese Antarctica noticed temperatures soar 40C above regular,
Latest ice cowl through the austral summer time has shrunk most round West Antarctica, which is extra weak to the impacts of world warming than the far bigger East Antarctica.
The document minimal sea ice extent within the Arctic – 3.4 million sq. km (1.3 million sq. miles) – occurred in 2012, with the second- and third-lowest ice-covered areas in 2020 and 2019, respectively.
In 2021, the United Nations’ Intergovernmental Panel on Local weather Change forecast with “excessive confidence” that the Arctic Ocean would develop into virtually ice-free in September not less than as soon as by mid-century.