Posted on 02/27/2024 9:21:39 AM PST by Diana in Wisconsin
Scientists have looked back in time to reconstruct the past life of Antarctica’s “Doomsday Glacier” — nicknamed because its collapse could cause catastrophic sea level rise. They have discovered it started retreating rapidly in the 1940s, according to a new study that provides an alarming insight into future melting.
The Thwaites Glacier in West Antarctica is the world’s widest and roughly the size of Florida. Scientists knew it had been losing ice at an accelerating rate since the 1970s, but because satellite data only goes back a few decades, they didn’t know exactly when significant melting began.
Now there is an answer to this question, according to a study published Monday in the journal Proceedings of the National Academy of Sciences.
By analyzing marine sediment cores extracted from beneath the ocean floor, researchers found the glacier began to significantly retreat in the 1940s, likely kicked off by a very strong El Niño event — a natural climate fluctuation which tends to have a warming impact.
Since then, the glacier has been unable to recover, which may reflect the increasing impact of human-caused global warming, according to the report.
What happens to Thwaites will have global reverberations. The glacier already contributes 4% of sea level rise as it sheds billions of tons of ice a year into the ocean. Its complete collapse could raise sea levels by more than 2 feet.
But it also plays a vital role in the stability of the West Antarctic Ice Sheet, acting like a cork holding back the vast stretch of ice behind it. Thwaites’ collapse would undermine the stability of the ice sheet, which holds enough water to raise sea levels by at least 10 feet, causing catastrophic global flooding.
(Excerpt) Read more at channel3000.com ...
Hope the bear’s doing ok.
I have noticed that coastal properties around here have cut their prices in half because they know they will be flooded out very soon....
Not!
Nuclear bombs and testing have deposited radioactive particals on the ice shelf causing it to melt. Radioactive decay= Heat.
I’m currently 30 miles from Morraine (mo·raine
nounGEOLOGY
a mass of rocks and sediment carried down and deposited by a glacier, typically as ridges at its edges or extremity), Ohio. Thirteen thousand short years ago! I guess prehistoric man farted that glacier back to the arctic.
“’Humans are changing the climate and this study shows that small continuous changes in climate can lead to step changes in glacier state,’ said Truffer, WHO WAS NOT INVOLVED IN THE RESEARCH.”
Laughable.
Then why do democrats and their super wealthy peeps keep buying up all the beachfront property?
More evidence that the earth is coming out of an ice age.
Scientists , from where and live where ? Ya Glaciers never melt they keep going and going until they cover the planet ,LOL
Agreed.
Of course there is no mention of the new sea-ice being found in another part of the world.
You can’t take it with you.
Almost everyone I see that owns an ocean front house is either really old or really rich or both.
We all have one leg slightly shorter than the other from always walking on a hillside, LOL!
👍
“which may reflect the increasing impact of human-caused global warming”
MAY??? You just know the National Academy of Sciences wanted to pin it on global warming, but they are just a wee bit reticent to say it IS being caused by global warming.
I live in southern NH. I have boulders on my property over 7’ across. There are some within a mile or two that are 15-20’ across.
One sits on a bend in the road. The road was put in early 1800s. They just went around it. It is about 15’ high and 20’ long.
The question is not, and has never been, whether the earth is warming. It is very likely it is.
The question is if it is man-caused (anthropogenic) and if taxing and spending trillions of dollars on stupid Leftist schemes like sequestering carbon will make any difference at all.
Ya , how did humans control the El Niño event , LOL
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