California-size Antarctic ice sheet once thought stable may actually be at tipping point for collapse
By Ben Turner published 1 day ago
Researchers have discovered the base of the Wilkes Subglacial Basin, which holds enough ice to raise sea levels by as much as 10 feet, may already be partially thawed.
A photo of Cape Adare located west of the Wilkes Basin in East Antarctica. (Image credit: Getty Images)
A gigantic ice sheet that was thought to be stable may be much closer to runaway melt than anyone realized, a new study has revealed.
The Wilkes Subglacial Basin — a California-size ice sheet in East Antarctica that holds enough ice to lift global sea levels by 10 feet (3 meters) — could be close to thawing at its base.
The discovery was made by scientists using radar surveys from planes flying over the sheet to peek at the ice underneath. If small temperature increases continue to accumulate beneath the sheet, the front edge could become unstuck and collapse. The researchers published their findings Jan. 19 in the journal Geophysical Research Letters.
"There hasn't been much analysis in this region — there's a huge volume of ice there, but it has been relatively stable," first author Eliza Dawson, a doctoral student in geophysics at Stanford University, said in a statement. "We're looking at the temperature at the base of the ice sheet for the first time and how close it is to potentially melting."
More:
https://www.livescience.com/planet-earth/climate-change/california-size-antarctic-ice-sheet-once-thought-stable-may-actually-be-at-tipping-point-for-collapse
= new reply since forum marked as read
I'm exaggerating when I talk about it.
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https://www.fox9.com/news/florida-home-for-sale-most-expensive-america-295-million
Published February 14, 2024 12:57PM
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