As Rush says, run the numbers.
Someone help me with the math.
the Greenland ice sheet is 660,000 sq mi
The earth’s oceans are 139,700,000 sq mi
How thick would the Greenland ice cap have to be to melt and raise sea levels 30 feet? (the average thickness is 6,600–9,800 ft)
It doesn’t add up.
from: http://maptd.com/what-would-greenland-look-like-without-the-icecap/
“The Greenland ice sheet covers 80% of the island with a thickness of generally more than 2 km. If the entire ice cap melted it would cause a global rise in sea levels of 7.2 metres, dramatically affecting coastal regions around the world, but what would the island of Greenland itself look like ?”
And in answer to the last question - more like an archipelego than an island (picture at the link).
The idea that eric the red tricked the vikings into settling an ice covered island by calling it “green land” is pretty funny. The vikings weren’t stupid; if they arrived and it looked too cold and desolate they would have gotten back into their boats and sailed away. They lived there successfully for a couple hundred years raising cattle and hunting.
How thick would the Greenland ice cap have to be to melt and raise sea levels 30 feet? (the average thickness is 6,600–9,800 ft)
It doesn’t add up.
Actually, it does. Using your numbers, the sea level rise would be about 38 feet (assuming an average 8,000 foot thickness for the Greenland ice cap.