Arctic has one of warmest years, raising fears over rising sea levels
The Arctic has experienced its second warmest year since 1900, according to a report published Tuesday, raising fears over low summer sea ice and rising sea levels.
The Arctic has experienced its second warmest year since 1900, according to a report published Tuesday, raising fears over low summer sea ice and rising sea levels.
Environment
19 hours ago
14
1393
Two adventurers have successfully crossed the Arctic Ocean on skis after persevering through brutal conditions, briefly running out of food, and struggling to traverse thin ice caused by global warming, their team said on ...
Environment
Dec 08, 2019
1
27
Scientists have been on a global search for the wild relatives of our food crops, hoping to bolster their defences against disease and climate change, a study showed Tuesday.
Plants & Animals
Dec 03, 2019
0
4
Sparse trees cast long shadows as the morning sun rises over the grassy woodland clearing. Elephants and rhinos gather around a quiet watering hole. A troop of baboons starts chattering as they wake up, preparing for the ...
Archaeology & Fossils
Oct 22, 2019
0
205
Researchers from more than a dozen nations prepared Friday to launch the biggest and most complex expedition ever attempted in the central Arctic—a yearlong journey through the ice they hope will improve the scientific ...
Earth Sciences
Sep 20, 2019
0
41
Using radar data from NASA's Cassini spacecraft, recently published research presents a new scenario to explain why some methane-filled lakes on Saturn's moon Titan are surrounded by steep rims that reach hundreds of feet ...
Space Exploration
Sep 09, 2019
6
585
Earth's magnetic field seems steady and true—reliable enough to navigate by.
Earth Sciences
Aug 07, 2019
9
784
At dusk, tourists marvel at the sensational collapse of an iceberg at the end of its long journey from Greenland to Canada's east coast, which now has a front row seat to the melting of the Arctic's ice.
Environment
Aug 02, 2019
0
46
Mission accomplished: the Planetary Society announced Wednesday that its LightSail 2 spacecraft, which was launched last month, had successfully raised its orbit using only the power of photons from the Sun.
Space Exploration
Aug 01, 2019
7
366
Inventors of centuries past and scientists of today have found ingenious ways to make our lives better with magnets—from the magnetic needle on a compass to magnetic data storage devices and even MRI (magnetic resonance ...
General Physics
Jul 18, 2019
0
804
Coordinates: 90°N 0°W / 90°N 0°W / 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 the Earth's surface. It should not be confused with the North Magnetic Pole.
The North Pole is the northernmost point on 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.
While the South Pole lies on a continental land mass, the North Pole is located in the middle of the Arctic Ocean amidst 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, have constructed a number of manned drifting stations, some of which have passed over or very close to the Pole. Recently, scientists have predicted that the North Pole may become seasonally ice-free by 2065 due to Arctic shrinkage. More pessimistically, it was claimed by some scientists that the Arctic ice-cap might temporarily disappear in mid 2008, a prediction which did not come to pass. On December 15, 2008, the Canadian science TV series Daily Planet reported that scientists now predict the ice cap could melt away by 2014.
The sea depth at the North Pole has been measured at 4,261 metres (13,980 ft). The nearest land is usually said to be Kaffeklubben Island, off the northern coast of Greenland about 700 km (440 mi) away, though some perhaps non-permanent gravel banks lie slightly further north.
This text uses material from Wikipedia, licensed under CC BY-SA