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The flightless midge Belgica antarctica, the largest purely terrestrial animal in Antarctica, reaches 6 mm (1 ⁄ 4 in) in size. [ 114 ] Antarctic krill , which congregates in large schools , is the keystone species of the ecosystem of the Southern Ocean, being an important food organism for whales, seals, leopard seals , fur seals, squid ...
The first person to report a fossil in the Antarctic was American naturalist James Eights in 1829, who landed probably on King George Island and found a fossilized log measuring 2.5 ft (0.76 m) in length and 4 in (100 mm) in diameter. Eights left the fossil where he found it, rather than collecting and formally describing it. [5]
By the 2010s, Greenland was contributing roughly 0.8 mm/yr to sea level rise, and Antarctica was contributing roughly 0.4 mm/yr, both accelerating by 10%/yr (a doubling time of 7 years). [citation needed] Climate models estimate they will contribute 1 m - 2 m to sea level rise by 2100, mostly in the latter half of the century [10] [11]
Physically, Antarctica is divided in two by the Transantarctic Mountains, close to the neck between the Ross Sea and the Weddell Sea. Western Antarctica and Eastern Antarctica correspond roughly to the western and eastern hemispheres relative to the Greenwich meridian. [note 1] West Antarctica is covered by the West Antarctic Ice Sheet.
A sea-level rise of 3.3 m (10 ft 10 in) would occur if the ice sheet collapses, leaving ice caps on the mountains, and 4.3 m (14 ft 1 in) if those ice caps also melt. [42] Isostatic rebound may contribute an additional 1 m (3 ft 3 in) to global sea levels over another 1,000 years. [ 41 ]
Scientists from the British Antarctic Survey found that warm ocean water is seeping beneath the ice sheet at its “grounding line” — the point at which the ice rises from the seabed and ...
In May 1965, the American physicist Carl R. Disch went missing during the course of his routine research near Byrd Station, Antarctica. His body was never found. [135] [failed verification] A baby, named Emilio Marcos de Palma, was born near Hope Bay on 7 January 1978, becoming the first baby born on the continent. He also was born farther ...
We used 11 different satellite missions to track Antarctica’s contribution to rising sea levels. Antarctica has lost nearly 3 trillion tonnes of ice since 1992 Skip to main content