Posted on 05/21/2024 8:35:03 AM PDT by rktman
Ocean water is pushing miles beneath Antarctica’s “Doomsday Glacier,” making it more vulnerable to melting than previously thought, according to new research which used radar data from space to perform an X-ray of the crucial glacier.
As the salty, relatively warm ocean water meets the ice, it’s causing “vigorous melting” underneath the glacier and could mean global sea level rise projections are being underestimated, according to the study published Monday in the Proceedings of the National Academy of Sciences.
The Thwaites Glacier in West Antarctica — nicknamed the “Doomsday Glacier” because its collapse could cause catastrophic sea level rise — is the world’s widest glacier and roughly the size of Florida. It’s also Antarctica’s most vulnerable and unstable glacier, in large part because the land on which it sits slopes downward, allowing ocean waters to eat away at its ice.
Thwaites, which already contributes 4% to global sea level rise, holds enough ice to raise sea levels by more than 2 feet. But because it also acts as a natural dam to the surrounding ice in West Antarctica, scientists have estimated its complete collapse could ultimately lead to around 10 feet of sea level rise — a catastrophe for the world’s coastal communities.
(Excerpt) Read more at cnn.com ...
To two ounces of bourbon, a half ounce of orange curacao, and a few jiggers of bitters I will add one large ice cube and stir.
I will then determine if the mixture increases or decreases my anxiety level with regard to global warming... er... climate change.
8^)
Yeah, well we’re over 5,000 in elevation and can find ocean fossils too up in the mountains. Seems almost like folks have no historical Knowledge. Only hysterical knowledge. 😊👍
May I recommend two experiments?
Once with the ice floating in the spirits, the other with the ice stacked from the bottom of the glass to above the liquid level?
Of course, the liquid volume in the glass will likely decrease during the experiment, rendering the results meaningless ...
But I prefer my bourbon neat.
But, if it’s a glacier and not and iceberg, how is ocean eater “rushing” beneath it?
You will find that the liquid level in the glass actually decreases as the evening wears on. Yay, science!
I went to the Dr, he ordered X rays from space using radar to diagnose my problem.
This is what I was wondering about:
https://brilliantio.com/why-is-pacific-ocean-higher-than-the-atlantic/
Would the fresh water of the glacier vs the salinity of the oceans affect the direction of its flow? Would the different temperatures of the oceans attract or repel its flow?
What if it flips over like Guam?
If it breaks off, it will float.......
If it breaks off, it will:
1) no longer be supported by land.
2) be driven into warmer waters where it will melt.
Land ice entering the ocean increases the amount of water in the ocean.
3) It WILL cool the ocean, therby cooling the planet, triggering a new ice age.
If Thwaites Glacier was to collapse entirely, global sea levels would increase by 65 cm (25 in) (Source: Bedmachine, https://www.nature.com/articles/s41561-019-0510-8#Sec7, gives total volume 483,000 km3; volume above flotation 258,000 km3, and sea level equivalent, 65 cm.)
The problem I have is with National Flood Insurance.
Meaning IF your house on the coast of Florida gets hit by a hurricane you will get paid to rebuild it. If you choose to rebuild it in the same place, and it gets wiped out again five years later by another hurricane, you will get paid again to rebuild it.
WE are subsidizing MULTI MILLIONAIRES over and over again to rebuild their beach houses. I think it is great that someone can afford to own a beach house. I have no problem with that. What I have an issue with is that I think you should only get to be reimbursed ONCE. After that IF you or anyone else wants to build in the same spot, you are on your own.
This also goes for flood plains around rivers in the USA or in the 9th Ward of New Orleans. If you knowingly build a house in a flood plain, even IF that flood only comes once every 100 years you should not be depending on the Federal Government to bail you out when it eventually gets flooded.
FYI, I just had this conversation with a buddy who is in the process of rebuilding his cottage in Wells, ME. It is across the street from the Atlantic Ocean. It got flooded in a storm this past winter.
Back in the 1970s they were promising us a new ice age. They swore that in just a couple of decades, Cleveland would be buried under hundreds of feet of ice.
Fear mongers scream, THERE IS NO GOD, as they bow to worship Science.
The only thing that can save humanity is higher taxes and eating only bugs!!
Lets hope that DC returns to a muddy marsh and produces something useful, like oysters or mussels.
👍
Because that ice shelf is already floating, there would be no effect on ocean levels.
They always bring up the supposed danger of the glacier when the real concern is the ice shelf itself. If it were to break off, then it would allow the glacier to slide into the ocean over the course of one or two centuries....That of course ignores the fact that another ice shelf would likely form and halt the glacier slide.
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