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IPFS News Link • Climate Change

Rotten Sea Ice

• arclein
Arctic Oscillation (AO) and its status is quantified as an index value. When pressures are higher than normal in the Arctic and lower than normal in mid-latitudes, the AO is in its negative phase and the index is negative. The NSIDC reports that December's AO index value was -3.41, "the most negative value since at least 1950."