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).