Apparently this is due to the silting-up of a bay and has nothing to do with the decline of the ocean level.
Nobody ever explains why Greenland was under water in the Leif erickson Times
Because that is not true.
Minor misunderstanding here: During the Medieval Warm Period - when worldwide temperatures were hotter than now but CO2 from man was negligible - Greenland was much warmer than now, and many crops and farms were successful for many centuries.
The island, however, while a bit warmer than now, was not underwater. The OCEAN LEVEL during the same period - when it was warmer globally than now - DID NOT RISE compared to today's level.
Rising sea levels, melting Greenland glaciers are a mindless propagandizing scare tactic used by the enviro’s to further their agenda. They CANNOT be justified by today's temperatures, temperature trends, not today's observations.
let me tell you what they say in Rye England in the 16th century The Pub i went to on sundays was a the Beach area Now One Mile From the coast! They Clainm That England is sinking in the North and Rye is on the Opposite end of that Phenomenom!