this post was submitted on 24 Mar 2026
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Drilling through 500 feet of floating ice into the Antarctic Ocean floor, climate scientists have retrieved a rare 23-million-year record of sediments that helps demonstrate why the planet’s southern ice shield could determine the fate of distant low-lying coastal areas.

The layers of rock, silt, and fossils are like pages in a book of geological time, revealing how West Antarctica’s vast ice sheets and floating shelves respond rapidly to modest warming, with significant shrinking and melting in climates similar to today’s.

Along with other new modeling studies and analyses of current ice retreat, the core sample of ocean sediments affirms that human-caused warming is triggering an irreversible long-term meltdown that could submerge the southern third of Florida and other low-elevation coastal areas within two to three centuries.

The lines of evidence from paleoclimatology, as well as from modeling and observations, also converge to suggest that the average global sea level rise in the more immediate future will accelerate, reaching 3 feet by the end of the century and up to 5 feet in equatorial island regions, potentially displacing millions of people worldwide.

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[–] DarrinBrunner@lemmy.world 15 points 2 hours ago (2 children)

How many years ago did you conclude we're all fucked?

Also, the "three feet by the end of the century" is probably too low. Let's say eight feet, just based on how wrong they've been so far.

[–] HellsBelle@sh.itjust.works 5 points 2 hours ago

Donges said that even conservative estimates of about 13 feet of sea-level rise by 2300 seem massive.

[–] UnderpantsWeevil@lemmy.world 2 points 2 hours ago

How many years ago did you conclude we’re all fucked?

Folks have been waving "The End Is Nigh" placards for a long while. Things change. Systems fail. Societies rise and fall.

This isn't the end. It isn't even the beginning of the end. Life will get a lot worse for a lot of people, so long as the engines of industry continue to be piloted by sociopaths. But tell that to someone in Kiev or Myanmar or Gaza, and they'll wonder where you've been for the last five years.

Do the best you can with the information and opportunity you're afforded. Don't lose sleep over a problem your great grandchildren will be looking forward to if you're not actually in a position to do something about it.

[–] Lexam@lemmy.world 9 points 2 hours ago

I live near the top of a hill in the middle of the United States. My retirement plan currently is to have beach front property to airbnb.

[–] HuudaHarkiten@piefed.social 5 points 2 hours ago

Yay! Another point of no return crossed. Can't wait for the next one.