There's a reasonable chance that Antarctica's two most vulnerable ice shelves -- the ends of massive glaciers that float over the ocean -- will succumb to Earth's warming climate and House of Pleasures (House of Tolerance)eventually collapse into the sea.
These particular shelves, known as Larsen C and George VI, are perched on the Antarctic Peninsula -- the finger that runs up towards South America. Glacial scientists have now gauged how much oceans would rise if the ice shelves fail, and the news isn't good.
SEE ALSO: 2018 is only halfway over, but a troubling climate change trend is already apparentThe research, published Thursday in the journal The Cryosphere, shows that taken together, the glaciers' overall contribution to rising seas wouldn't be enormous -- adding some 10 millimeters (under half an inch) by the end of the century.
But their collapse is a harbinger of what's to come: The Antarctic coasts are covered in ice shelves, and if they begin to collapse, rivers of ice, or glaciers, will be unleashed into the ocean, boosting sea levels even more.
The shelves act as formidable "plugs," holding back thick masses of Antarctic ice from flowing into the water.
"These are just the two ice shelves considered to have the greatest risk of collapse at present," Nicholas Barrand, a glaciologist and study coauthor, said over email. "There are many, many more ice shelves in Antarctica, and many of them are much, much larger."
In 2002, an ice shelf the size of Rhode Island, Larsen B (just north of Larsen C), crumbled into the ocean and broke apart.
But Antarctica's ice sheet melting events are still mostly unprecedented in human history, so they're quite difficult to project, Josh Willis, a NASA oceanographer, said in an interview.
Barrand's projections -- based upon how quickly ice moves and other geologic conditions -- gives scientists a good idea of what will happen to the ice being held back by these two shelves, if they were to break up.
However, the looming question that still evades climate scientists is when will they collapse?
"How fast are these shelves going to break up -- and can we predict that?" asks Willis. "When should we be worried? We don't have a good answer to that."
Via GiphyAs Barrand noted, Antarctica has much larger ice sheets plugged behind its ice shelves farther south.
Some of the shelves, in western Antarctica, are believed to be particularly susceptible to warming oceans, as relatively warmer water is eating away at the ice shelves floating over the ocean, from the bottom.
One of these, the Pine Island glacier, made quite a media splash last year when it shed a Delaware-sized iceberg in July 2017.
"Pine Island is poised to really run away," said Willis. "Those are really kind of the big scary ones — but there are others, too."
The West Antarctic ice sheet contains enough frozen water to raise sea levels by some four feet alone, according to NASA.
But Antarctica, said Barrand, certainly isn't the only source of ice flowing into the sea.
When the incremental inputs of Larsen C, George VI, and Pine Island -- should they let loose -- are considered along with thawing Greenland and the melting of ice on mountains around the world, it adds up to a considerable amount of sea level rise.
Antarctica's potential to boost sea levels is significant, said Barrand, "but when added to other sources of freshwater to the global oceans, even more significant."
The best electric scooters to buyGuy at World Cup lights his cigarette with a literal flaming walletInstagram Stories, gCal, and phone apps: Without Facebook, how are we inviting friends to parties?Bose is entering new territory with the noiseLawmakers fire back at DHS secretary over immigration statementWorld Cup manager wins the heart of the internet, becomes glorious memeA rare space diamond went to auction. The winner paid for it with crypto.Doctor suspended after viral video of tense standPresident Trump gave the U.S. flag a hug and it was all pretty weirdMichelle Obama joins Laura Bush in taking on Trump's immigration policyNew report says Apple is launching the new iPhone SE in early MarchMeghan Markle's dad opens up about the royal wedding in very honest interviewTesla recalls 26,681 vehicles due to heat pump issuesDad cons his way into getting a nice table at a booked restaurantCat pokes head through hole in the ceiling, achieves instant fameBeyoncé liked a meme about Nas on TwitterMelania Trump boards plane to meet immigrants wearing 'I really don't care' jacketSamsung reveals new Galaxy S22 line for Feb. 25 launchPresident Trump gave the U.S. flag a hug and it was all pretty weirdNASA sends surprise Webb telescope selfie from 1 million miles away Watch Tiffany Trump avoid her father's awkward big kiss Ivanka Trump tweets about pizza, remains silent on Donald Trump's leaked audio Did Martha Raddatz just win the debate? Donald Trump is hell Ken Bone was the light in the dark second presidential debate tunnel King Joffrey has an unexpected theory about who will end up on the Iron Throne Andromeda galaxy will deliver a 'glancing blow' to our Milky Way 5 new features Twitter is testing in its iOS app After Uber bought Jump, riders started e WeRateDogs is releasing a new card game where you can rate all the good pups Donald Trump just crossed a major line during Sunday night's debate Look at this colossal storm on Uranus MGM launches Epix Now, a new streaming service filled with originals The independent workforce is bigger than anyone thought Texas zoo has a clever Valentine's Day offer for vengeful exes Former Republican party chair just summed up the debate in one GIF Brand Twitter, please stay away from #Election2020 Alexandria Ocasio 'Spongebob' song sees 566% stream increase post Super Bowl Instagram will start cluttering your feed with IGTV videos
2.5859s , 10133.9453125 kb
Copyright © 2025 Powered by 【House of Pleasures (House of Tolerance)】,Exquisite Information Network