No alarm here? NASA finds 2021 Arctic summer sea ice 12th-lowest on satellite record
Credits: NASA’s Goddard Space Flight Center/Scientific Visualization Studio
With only 43 years of official satellite data, 12th-lowest is somewhat yawn-inducing from an alarmist point of view, but interesting in that it’s 38% greater than the lowest level (since 1978) reached in 2012. But that stat probably won’t feature in any media headlines, as it might sow seeds of doubt about the supposed correlation of a slowly rising CO2 level with increasing seasonal sea ice loss, which very clearly failed to show this year.
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Sea ice in the Arctic appears to have hit its annual minimum extent on Sept. 16, after waning in the 2021 Northern Hemisphere spring and summer, says SpaceRef.
The summertime extent is the 12th-lowest in the satellite record, according to scientists at the NASA-supported National Snow and Ice Data Center and NASA.
This year, the minimum extent of Arctic sea ice dropped to 4.72 million square kilometers (1.82 million square miles).
Sea ice extent is defined as the total area in which ice concentration is at least 15%.
The average September minimum extent record shows significant declines since satellites began measuring consistently in 1978.
The last 15 years (2007 to 2021) are the lowest 15 minimum extents in the 43-year satellite record.
Full article here.
Source: https://tallbloke.wordpress.com/2021/09/23/no-alarm-here-nasa-finds-2021-arctic-summer-sea-ice-12th-lowest-on-satellite-record/
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