5,49 million sq miles (14,2 million sq km). 1:10th of earth's surface, 1,5 times United States
98% of the land is covered by ice, around 40 million years old. This is 90% of the earth's ice, including 70% of the worlds freshwater. Volume 7.2 million cubic miles (30 million cubic km), area (13 586 000 sq km). If it were to melt, the earth's waters would rise 220 ft (70m).
15 670 ft (4776m) (measured with Echo-sounding from aircraft).
The ice sheet, at places thicker than 2.5 miles (4km), averages 1.7 miles (2,7km) in thickness with an area of 5.2 sq miles (13,5 million sq km).
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