Greenland shares border with Canada
Geography and climate
Greenland is the world's largest non-continental island and the third largest area in North America after Canada and the United States. It is between latitudes 59° and 83°N, and longitudes 11° and 74°W. Greenland is bordered by the Arctic Ocean to the north, the Greenland Sea to the east, the North Atlantic Ocean to the southeast, the Davis Strait to the southwest, Baffin Bay to the west, the Nares Strait and Lincoln Sea to the northwest. The nearest countries to Greenland are Canada, to the west and southwest across Nares Strait and Baffin Bay, as well as a shared border on Hans Island; and Iceland, southeast of Greenland in the Atlantic Ocean. Greenland also contains the world's largest national park, and it is the largest dependent territory by area in the world, as well as the fourth largest country subdivision in the world, after Sakha Republic in Russia, Australia's state of Western Australia, and Russia's Krasnoyarsk Krai, and the largest in North America.
The lowest temperature ever recorded in the Northern Hemisphere was recorded in Greenland, near the topographic summit of the Greenland Ice Sheet, on 22 December 1991, when the temperature reached −69.6 °C (−93.3 °F). In Nuuk, the average daily temperature varies over the seasons from −5.1 to 9.9 °C (22.8 to 49.8 °F). The total area of Greenland is 2,166,086 km2 (836,330 sq mi) (including other offshore minor islands), of which the Greenland ice sheet covers 1,755,637 km2 (677,855 sq mi) (81%) and has a volume of approximately 2,850,000 km3 (680,000 cu mi). The highest point on Greenland is Gunnbjørn Fjeld at 3,700 m (12,100 ft) of the Watkins Range (East Greenland mountain range). The majority of Greenland, however, is less than 1,500 m (4,900 ft) in elevation.
The weight of the ice sheet has depressed the central land area to form a basin lying more than 300 m (980 ft) below sea level, while elevations rise suddenly and steeply near the coast.The ice flows generally to the coast from the centre of the island. A survey led by French scientist Paul-Emile Victor in 1951 concluded that, under the ice sheet, Greenland is composed of three large islands. This is disputed, but if it is so, they would be separated by narrow straits, reaching the sea at Ilulissat Icefjord, at Greenland's Grand Canyon and south of Nordostrundingen.
All towns and settlements of Greenland are situated along the ice-free coast, with the population being concentrated along the west coast. The northeastern part of Greenland is not part of any municipality, but it is the site of the world's largest national park, Northeast Greenland National Park.At least four scientific expedition stations and camps had been established on the ice sheet in the ice-covered central part of Greenland (indicated as pale blue in the adjacent map): Eismitte, North Ice, North GRIP Camp and The Raven Skiway. There is a year-round station Summit Camp on the ice sheet, established in 1989. The radio station Jørgen Brønlund Fjord was, until 1950, the northernmost permanent outpost in the world.
The extreme north of Greenland, Peary Land, is not covered by an ice sheet, because the air there is too dry to produce snow, which is essential in the production and maintenance of an ice sheet. If the Greenland ice sheet were to melt away completely, the world's sea level would rise by more than 7 m (23 ft).In 2003, a small island, 35 m × 15 m (115 ft × 49 ft) in length and width, was discovered by arctic explorer Dennis Schmitt and his team at the coordinates of 83-42. Whether this island is permanent is not yet confirmed. If it is, it is the northernmost permanent known land on Earth.
In 2007, the existence of a new island was announced. Named "Uunartoq Qeqertaq" (English: Warming Island), this island has always been present off the coast of Greenland, but was covered by a glacier. This glacier was discovered in 2002 to be shrinking rapidly, and by 2007 had completely melted away, leaving the exposed island. The island was named Place of the Year by the Oxford Atlas of the World in 2007. Ben Keene, the atlas's editor, commented:
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