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Over longer timescales, the West Antarctic ice sheet, which is much smaller than the East Antarctic ice sheet and is grounded deep below sea level, is considered highly vulnerable. The melting of all of the ice in West Antarctica would increase global sea-level rise to 4.3 m (14 ft 1 in). [98]
A map of West Antarctica. The total volume of the entire Antarctic ice sheet is estimated at 26.92 million km 3 (6.46 million cu mi), [2] while the WAIS contains about 2.1 million km 3 (530,000 cu mi) in ice that is above the sea level, and ~1 million km 3 (240,000 cu mi) in ice that is below it. [20]
The melting of all the ice in West Antarctica would increase the total sea level rise to 4.3 m (14 ft 1 in). [119] However, mountain ice caps not in contact with water are less vulnerable than the majority of the ice sheet, which is located below the sea level. [120] Its collapse would cause ~3.3 m (10 ft 10 in) of sea level rise. [121]
The continent’s ice sheet is already a major contributor to rising seas, and increased volcanic activity could amplify the problem. Antarctic sea ice has been shrinking in recent years, hitting ...
Antarctica’s vast expanse of sea ice regulates Earth’s temperature, as the white surface reflects the Sun’s heat back into the atmosphere. Record low sea-ice levels around Antarctica ...
The claim: Polar sea ice extents show climate change is a 'scam' A Dec. 23, 2024, Facebook post (direct link, archive link) shows a map of Antarctic sea ice extent, or area, with color coding that ...
Unusually rapid (up to 4.1 cm/year) present glacial isostatic rebound due to recent ice mass losses in the Amundsen Sea embayment region of Antarctica coupled with low regional mantle viscosity is predicted to provide a modest stabilizing influence on marine ice sheet instability in West Antarctica, but likely not to a sufficient degree to ...
The West Antarctic Ice Sheet holds enough water to raise sea levels by about 5 meters – more than 16 feet — which would cause devastating flooding in coastal towns and cities around the world.