Last updated: October 15, 2017 at 3:42 am
The island of Greenland — 2,175,600 sq km (840,000 sq miles) — is an autonomous constituent country within the Kingdom of Denmark. The majority of its residents are Inuit, whose ancestors migrated from what is now the Canadian territory of Nunavut during the 13th century. Approximately 80% of Greenland is covered by the only permanent ice sheet outside Antarctica. Most of the ice sheet is more than 2 km (1.2 mi) thick, and over 3 km (1.9 mi) at its thickest point. If it melted away completely, the world’s sea level would rise by more than 7 m (23 ft).
Thresholds for irreversible decline of the Greenland ice sheet. Clim. Dynam. 35, 1049–1057 (2009)., , &
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Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.