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We have lots of new readers. This is a quick rehash.
Satellites which monitor Arctic ice (and earth’s temperature) came on line right after the PDO shift of 1977. Their period of record is coincident with a period of time dominated by positive ENSO.
From 1988-1996, most of the multi-year ice melted, and extent has generally declined during the satellite era.
It seems a safe bet that warm Pacific Ocean temperatures have led to ice loss on the Pacific side of the Arctic.
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