[Damifino]

OK - I am calling BS! To raise the worlds 139,400,000 square miles oceans 24 feet, Greenland's 836,300 square miles would have to melt off 4000.48 feet of ice (that is, if 100% of the island were ice covered).

Something doesn't compute here...

[PreciousLiberty]

"OK - I am calling BS! To raise the worlds 139,400,000 square miles oceans 24 feet, Greenland's 836,300 square miles would have to melt off 4000.48 feet of ice (that is, if 100% of the island were ice covered). Something doesn't compute here..."

Actually your math is pretty close:

It extends 1,570 miles (2,530 km) north-south, has a maximum width of 680 miles (1,094 km) near its northern margin, and has an average thickness of about 5,000 feet (1,500 m).

https://www.britannica.com/place/Greenland-Ice-Sheet

As to those pointing out that melting floating ice doesn't raise the sea level, that's correct. However, this ice is on land.

Personally, I see no reason for alarm for a variety of reasons, but Greenland does have a lot of ice!