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in the North Atlantic have feedbacks that promote further glacial retreat.

Deglaciation influences sea level because water previously held on land in solid form turns into liquid water and eventually drains into the ocean. The recent period of intense deglaciation has resulted in an average global sea level rise of 1.7 mm/year for the entire 20th century, and 3.2 mm/year over the past two decades, a very rapid increase.

The physical mechanisms by which deglaciation occurs include melting,

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