Greenland really is melting - two independent studies confirm

I know you're probably joking, but for the record: Greenland was marginally more livable during the medieval warm period, but even so farming and ranching were only barely viable and the Norse settlers never ventured very far north or inland. The... very optimistic name "Greenland" (directly translated from Old Norse) was chosen by Erik the Red because "people would be eager to go there if it had a good name", proving that even Vikings cared about marketing and branding.

The vast bulk of the ice sheets predate human civilization and weathered the warm period comfortably; the modern melting situation isn't really comparable.