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Antarctic ice shelf could crack, raise seas by feet within decade, scientists warn
NBC News / Comcast ^ | December 15, 2021 | By Tim Fitzsimons

Posted on 12/16/2021 7:27:06 AM PST by Oldeconomybuyer

An Antarctic ice shelf could crack and disintegrate within the next decade, allowing a Florida-sized glacier to slide into the ocean and raising sea levels by feet, scientists warned Wednesday.

A dramatic chain reaction in the ice could occur by 2031, starting with the Thwaites Glacier, said Erin Pettit, a professor at Oregon State University who studies glacier and ice sheet dynamics.

New research Pettit presented to a meeting of the American Geophysical Union in New Orleans suggests the final collapse of the ice shelf may occur "within as little as 5 years" and mark the beginning of the end of the Thwaites Glacier.

Thwaites is the “widest glacier in the world” and has “doubled its outflow speed within the last 30 years,” said Ted Scambos, a senior research scientist at the Cooperative Institute for Research in Environmental Sciences and a contributor to the research.

All the water in the Thwaites Glacier would raise sea levels by 2 feet — but if its collapse triggers nearby glaciers to fall, the global sea level could rise by up to 10 feet, Scambos said.

A series of scientific studies of Thwaites in recent years has shown the enormous glacier is melting more quickly and in ways scientists never expected.

(Excerpt) Read more at nbcnews.com ...


TOPICS: Culture/Society; Foreign Affairs; News/Current Events; Politics/Elections
KEYWORDS: antarctic; antarctica; globalwarming; globalwarmingfraud; hoax; propaganda; socialism
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To: Oldeconomybuyer

how much of this ice shelf is anchored on land ?

how much is floating ?...with its ice melt offsetting any water level increase like an ice cube in water. See water displacement research.

IF this ice shelf was ALL on land, AND was the size of florida, the affect on ocean levels would approximate the affect of the period at the end of this sentence in relationship to the length of this sentence .

Look at a world map. Florida is but a blip compared to our oceans.


61 posted on 12/16/2021 8:12:23 AM PST by chiller (Davey Crockett said: "Be sure you're right. Then go ahead'. I'm going ahead.)
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To: Oldeconomybuyer

The operative word is “could”. A lot of things “could” happen, but don’t.


62 posted on 12/16/2021 8:14:35 AM PST by beethovenfan (Mene, Mene, Tekel, Upharsin)
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To: Oldeconomybuyer

My Tennessee Possum Holler International Sea Port needs water.


63 posted on 12/16/2021 8:20:22 AM PST by DannyTN
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To: Oldeconomybuyer

Could. Might.

Pseudoscience.


64 posted on 12/16/2021 8:22:53 AM PST by Seruzawa ("The Political left is the Garden of Eden of incompetence" - Marx the Smarter (Groucho))
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To: Oldeconomybuyer

Awesome. Here is hoping Obama’s beachfront home is flooded.


65 posted on 12/16/2021 8:23:58 AM PST by Freedom_Is_Not_Free (America -- July 4, 1776 to November 3, 2020 -- R.I.P.)
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To: CatOwner

Well that was 90 million years ago give or take the odd Era.


66 posted on 12/16/2021 8:24:42 AM PST by PIF (They came for me and mine ... now its your turn)
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To: Oldeconomybuyer

IF the “ice shelf” was submerged to begin with, then “breaking off” wouldn’t raise the sea a millimeter ... ever see a full glass with ice cubes sticking up overflow when the ice cubes melted?


67 posted on 12/16/2021 8:24:49 AM PST by catnipman (Cat Nipman: Vote Republican in 2012 and only be called racist one more time!)
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To: Oldeconomybuyer

10 foot sea level rise. Has anybody bothered to calculate the volume and weight of such an unfathomable amount of water world wide?


68 posted on 12/16/2021 8:25:06 AM PST by Freedom_Is_Not_Free (America -- July 4, 1776 to November 3, 2020 -- R.I.P.)
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To: Oldeconomybuyer
And awful lot of could in this item. I mean, there are a lot of things that could happen over the next decade...

A series of scientific studies of Thwaites in recent years has shown the enormous glacier is melting more quickly and in ways scientists never expected.

Melting in ways scientists never expected? If it's melting it's melting. In what way is that never expected?!

69 posted on 12/16/2021 8:30:41 AM PST by Rummyfan (In any war between the civilized man and the savage, support the civilized man. Suppo)
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To: Oldeconomybuyer

and could not


70 posted on 12/16/2021 8:32:19 AM PST by butlerweave
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To: Oldeconomybuyer

From Wiki:
“ In 2020, scientists discovered warm water underneath the glacier for the first time.

In January 2019, NASA discovered an underwater cavity underneath the glacier, with an area two-thirds the size of Manhattan. The cavity formed mostly in the previous three years and is nearly a thousand feet tall, likely speeding up the glacier’s decay. “

Sort of sounds like this is a case of global warming via a volcanic hot spot rather than Gorebull Warming.


71 posted on 12/16/2021 8:32:51 AM PST by VanShuyten ("...that all the donkeys were dead. I know nothing as to the fate of the less valuable animals)
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To: Oldeconomybuyer

We’ll watch to see how many liberals sell their ocean front properties...

...I’ll wait.


72 posted on 12/16/2021 8:40:37 AM PST by fuzzylogic (welfare state = sharing of poor moral choices among everybody)
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To: Oldeconomybuyer

The world’s oceans cover approximately 139.38 million square miles. To increase the volume of water in the oceans by 2 feet, this glacier/ice capo would need to contain approximately 58,129,943,224,320,000 gallons of water


73 posted on 12/16/2021 8:42:20 AM PST by shotgun
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To: Freedom_Is_Not_Free

I get the total salt water area of the earth is 135 million sq miles. The area of Florida is 65 thousand sq miles. If the glacier is completely on land now and 1000ft tall when it melts sea level would rise by 6 inches.for two feet it would need to be 4000 feet tall. And it would half to melt in the next ten years,on a continent where the average temperature is well below freezing.


74 posted on 12/16/2021 8:44:29 AM PST by Fellow Traveler
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To: Oldeconomybuyer

Antarctic ice sheet could expand in the next decade. That is just as accurate.


75 posted on 12/16/2021 8:45:19 AM PST by pas
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To: Oldeconomybuyer

Thwaites Glacier is underlain with significant geothermal activity. It is geothermal heat which is causing it to thaw. Any competent researcher who is interested in Thwaites already knows this. The article is purposely misleading and omitting critical information.


76 posted on 12/16/2021 8:45:26 AM PST by hinckley buzzard ( Resist the narrative.)
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To: Oldeconomybuyer

It could. It might. Maybe it will. Perhaps. Possibly.


77 posted on 12/16/2021 8:48:10 AM PST by MercyFlush (DANGER: You are being conditioned to view your freedom as selfish)
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To: Oldeconomybuyer

Did did dit dit... this just in “meting miles thick glaciers could cause massive lakes in the northeast USA causing g land loss for anyone living In The area.

How many decades have they been screaming about the ice shelf now? If it ever eventually happens, then it happens. Adapt! Even if we stopped co2 production by 100%, it will do nothing to alter th3 course of nature no more so than the miles thick glaciers covering eastern USA could have been stopped.

What caused th3 miles thick glaciers to melt? Dino farts?


78 posted on 12/16/2021 8:49:28 AM PST by Bob434
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To: Oldeconomybuyer

Does that mean my house (15 feet above sea level at the street and 21 at the door) will be ocean front property soon? Bonus!


79 posted on 12/16/2021 8:50:31 AM PST by Poser (Cogito ergo Spam - I think, therefore I ham)
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To: Magnum44

That was a very funny movie, but absolutely hated the asinine “man evil, nature is god” mantra of the movie


80 posted on 12/16/2021 8:50:54 AM PST by Bob434
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