North Pole

Coordinates: 90°N 0°W / 90°N -0°E / 90; -0

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is (subject to the caveats explained below) defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. It should not be confused with the North Magnetic Pole.

The North Pole is the northernmost point on the Earth, lying diametrically opposite the South Pole. It defines geodetic latitude 90° North, as well as the direction of true north. At the North Pole all directions point south; all lines of longitude converge there, so its longitude can be defined as any degree value. Along tight latitude circles, counterclockwise is east and clockwise is west.

While the South Pole lies on a continental land mass, the North Pole is located in the middle of the Arctic Ocean amid waters that are almost permanently covered with constantly shifting sea ice. This makes it impractical to construct a permanent station at the North Pole (unlike the South Pole). However, the Soviet Union, and later Russia, constructed a number of manned drifting stations on a generally annual basis since 1937, some of which have passed over or very close to the Pole. Since 2002, the Russians have also annually established a base, Barneo, close to the Pole. This operates for a few weeks during early spring. Studies in the 2000s predicted that the North Pole may become seasonally ice-free because of Arctic ice shrinkage, with timescales varying from 2016 to the late 21st century or later.

Northwest Passage

The Northwest Passage is a sea route connecting the northern Atlantic and Pacific Oceans through the Arctic Ocean, along the northern coast of North America via waterways through the Canadian Arctic Archipelago. The various islands of the archipelago are separated from one another and from the Canadian mainland by a series of Arctic waterways collectively known as the Northwest Passages or Northwestern Passages. The Parliament of Canada renamed these waterways the "Canadian Northwest Passage" in a motion that was passed unanimously in December 2009.

Sought by explorers for centuries as a possible trade route, it was discovered in 1850 by Robert McClure and first navigated by Norwegian explorer Roald Amundsen with a small expedition in 1903–1906. Until 2009, the Arctic pack ice prevented regular marine shipping throughout most of the year. Changes in the pack ice (Arctic shrinkage) has rendered the waterways more navigable.

The contested sovereignty claims over the waters may complicate future shipping through the region: the Canadian government considers the Northwestern Passages part of Canadian Internal Waters, but the United States and various European countries maintain they are an international strait and transit passage, allowing free and unencumbered passage. If, as has been claimed, parts of the eastern end of the Passage are barely 15 metres (49 ft) deep, the route's viability as a Euro-Asian shipping route is reduced.

Freight transport

Freight transport is the physical process of transporting commodities and merchandise goods and cargo. The term shipping originally referred to transport by sea, but is extended in American English to refer to transport by land or air (International English: "carriage") as well. "Logistics", a term borrowed from the military environment, is also fashionably used in the same sense.

Modes of shipment

Ground

Land or "ground" shipping can be by train or by truck (International English: lorry). In air and sea shipments, ground transport is required to take the cargo from its place of origin to the airport or seaport and then to its destination because it is not always possible to establish a production facility near ports due to limited coastlines of countries. Ground transport is typically more affordable than air, but more expensive than sea especially in developing countries like India, where inland infrastructure is not efficient.

Shipment of cargo by trucks, directly from the shipper's place to the destination, is known as a door to door shipment and more formally as multimodal transport. Trucks and trains make deliveries to sea and air ports where cargo is moved in bulk.

Bering Strait

Coordinates: 66°0′N 169°0′W / 66.000°N 169.000°W / 66.000; -169.000

The Bering Strait (Russian: Берингов пролив, Beringov proliv, Yupik: Imakpik) is a strait connecting the Pacific and Arctic oceans between Russia and the US state of Alaska. Named after Vitus Bering, a Danish-born explorer in the service of the Russian Empire, it lies slightly south of the Arctic Circle at about 65° 40' N latitude, with the present US-Russia east-west boundary at 168° 58' 37" W.

The Strait has been the subject of scientific speculation that humans migrated from Asia to North America across a land bridge known as Beringia when lower ocean levels – perhaps a result of glaciers locking up vast amounts of water – exposed a wide stretch of the sea floor, both at the present strait and in the shallow sea north and south of it. This view of how Paleo-Indians entered America has been the dominant one for several decades and continues to be the most accepted one.

As of 2012, the Russian coast of the Bering Strait has been a closed military zone. Through organised trips and the use of special permits, it is possible for foreigners to visit. All arrivals must be through an airport or a cruise port, near the Bering Strait only at Anadyr or Provideniya. Unauthorized travelers who arrive on shore after crossing the strait, even those with visas, may be arrested, imprisoned briefly, fined, deported and banned from future visas.

Arctic shipping routes

Arctic shipping routes are the maritime paths used by vessels to navigate through parts or the entirety of the Arctic. There are three main routes that connect the Atlantic and the Pacific oceans: the Northeast Passage, the Northwest Passage, and the Transpolar Sea Route. In addition, two other significant routes exist: the Northern Sea Route, and the Arctic Bridge.

To connect the Atlantic with the Pacific, the Northwest Passage goes along the Northern Canadian and Alaskan coasts, the Northeast Passage follows the Russian and Norwegian coasts, and the Transpolar Sea Route crosses the Arctic through the North Pole.

The Arctic Bridge is an internal Arctic route linking Russia to Canada, and the Northern Sea Route trails the Russian coast from the Bering Strait to the East, to the Kara Sea to the West.

The main difference between the NSR and the NEP is that the latter comprises the Barents Sea and provides access to the port of Murmansk, the largest Russian Arctic port, and to the Atlantic. Given that the NSR constitutes the majority of the NEP, some sources use the terms NSR and NEP interchangeably.