Arctic Oscillation Partly to Blame for Warmer North Pole

From: TheRegister.co.uk

The more clement Arctic climate of recent years could have been triggered by shorter term circulation changes in the oceans and atmosphere.

According to a team of NASA scientists, decade-long variations in ocean circulation, known as the Arctic Oscillation, have an effect on the oceans’ salinity. A very salty sea is heavier and circulates differently than a less salty one, the team says. This can affect the temperature of the water in the region and thus the local climate.

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