1979-2012
arctic.atmos.uiuc.edu/cryosphere/timeseries.anom.1979-2008
arctic.atmos.uiuc.edu/cryosphere/timeseries.south.anom.1979-2008
When Arctic ice is strongly negative, Antarctic ice is strongly positive, and vice-versa. r² = 0.05
There is also a very good correlation before 1979
