It is often claimed that modern day sea ice changes are unprecedented, alarming, and well outside the range of natural variability.
Yet scientists are increasingly finding that biomarker proxies used to reconstruct both Arctic and Antarctic sea ice conditions since the Early Holocene reveal that today’s sea ice changes are not only not unusual, there is more extensive Arctic and Antarctic sea ice during recent decades than there has been for nearly all of the last 10,000 years.
Antarctic Sea Ice Extent
In the Southern Ocean surrounding Antarctica, the Sea Surface Temperatures have been cooling since 1979.
Purich Et Al., 2018 — “Observed Southern Ocean Changes Over Recent Decades Include A Surface Freshening (Durack And Wijffels 2010; Durack Et Al. 2012; De Lavergne Et Al. 2014), Surface Cooling (Fan Et Al. 2014; Marshall Et Al. 2014; Armour Et Al. 2016; Purich Et Al. 2016a) And Circumpolar Increase In Antarctic Sea Ice (Cavalieri And Parkinson 2008; Comiso And Nishio 2008; Parkinson And Cavalieri 2012).”
The decline in Southern Ocean Temperatures has coincided with an increase in Antarctic Sea Ice Extent since 1979.
Comiso Et Al., 2017 “The Antarctic Sea Ice Extent Has Been Slowly Increasing Contrary To Expected Trends Due To Global Warming And Results From Coupled Climate Models. After A Record High Extent In 2012 The Extent Was Even Higher In 2014 When The Magnitude Exceeded 20 × 106 Km2 For The First Time During The Satellite Era. … [T]He Trend In Sea Ice Cover Is Strongly Influenced By The Trend In Surface Temperature [Cooling].”
Arctic Sea Ice Extent
“Extensive Modern Sea Ice Conditions” during spring (80% concentrations), but “Consistently Low” and “Marginal” (<10%) Sea Ice conditions from 10,500 To 1,500 years before present.
“Lower Than Modern” Sea Ice Conditions between 2,200 and 1,200 years before present.
Little Ice Age Sea Ice conditions “Similar To Conditions As Observed Today”.
For the full article from principia-scientific.org click here.
The Earth is cooling.
This fact will soon be inescapable.
Grand Solar Minimum.
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