The sea-level rise from Antarctica's melting ice sheet could be 30% higher than estimated due to an effect scientists previously thought was 'inconsequential,' new study says
- Scientists say if the West Antarctica Ice sheet were to collapse, global sea levels could rise by about 10 feet.
- But a new study says that this figure could be about 3.3 feet higher.
- That is because as the glaciers melt, the bedrock under the ice sheet could rise out of the ocean.
The global sea-level rise due to the melting of Antarctic
Previous studies had estimated that if the West
The new calculation of this effect shows that over the next 1,000 years, the world's sea level could rise by one meter -about 3.3 feet - higher than previously predicted.Scientists had previously "dismissed it as inconsequential," Linda Pan, a lead author on the study, said in a press release.
Dr. Andy Smith, a
Pan added in a press release: "No matter what scenario we used for the collapse of the West Antarctic Ice Sheet, we always found that this extra one meter of global sea level rise took place."
"The magnitude of the effect shocked us," Pan said.Every single estimate of sea level rise "is going to have to be revised upward" because of this work, Jerry X. Mitrovica, a professor of geophysics at Harvard and an author on the paper, said in a Friday statement.
Scientists are concerned that the collapse of the West Antarctic ice sheet could be unstoppable.
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