Ice core analyses show Greenland the warmest it's ever been in at least 1000 years

 A new analysis of ice cores, allowing scientists to go back in time 1000 years, shows Greenland is now the warmest it has ever been during that period. This is significant because so much of its ice-sheet is land based - its melt water therefore contributes to ocean rise around the world.

Keep in mind that what used to be nearly unheard of, Arctic cyclones, are more frequent and powerful over the last couple decades. These have a large, negative effect on sea and glacial ice when it hits Greenland.