The icecap in Greenland covers an area of ​​1.7 million square kilometers, 
representing about 81% of Greenland's total area. 
It contains approximately 2.8 million km³ ice, which, if melted, 
would result in an increase of water level in the oceans of 7.2 meters. 
The thickness is more places on more than two kilometers thick 
and in more than 3 km. Average thickness is 2,135 meters.