GREENLAND ICE CAP DISAPPEARS! ( not global warming though )

The GREENLAND ice cap has melted away.  Even the snow that fell this past winter is gone.  Is it GLOBAL WARMING?  Hardly that!  Greenland ice cores down to bedrock, show a cycle of the Greenland icecap melting away on a rough cycle of 150 years.  Last time was in 1889.  Now it is 2012.  It will come back of course on the regular cycle.