The extent of the [[sea ice]] in the Atlantic sector of the Arctic sea has been shown to be correlated with the length of the [[sunspot cycle]] during the last 450 years. [http://www.tmgnow.com/repository/solar/lassen1.html] | The extent of the [[sea ice]] in the Atlantic sector of the Arctic sea has been shown to be correlated with the length of the [[sunspot cycle]] during the last 450 years. [http://www.tmgnow.com/repository/solar/lassen1.html] |