Posted on 12/18/2021 3:38:21 PM PST by where's_the_Outrage?
One of the ever-looming threats of climate change is sea level rise, which already threatens to displace millions of people worldwide and force them to move inland by the end of the century. A big part of the rising water levels are hotter temperatures at the poles—home to giant glaciers and ice shelves that hold crucial quantities of frozen H2O.
The Florida-sized Thwaites glacier in Antarctica, nicknamed the “doomsday glacier,” is already losing 50 billion tons of ice each year. That in itself accounts for around 4 percent of annual global sea level rise. But unpublished research shared at the American Geophysical Union fall meeting this week shows that the thinning ice shelf extending from Thwaites could shatter within the next three to five years. Behind Thwaites lies an even larger body of ice that, if the glacier melts, will be exposed to increasingly warm waters.
“Thwaites is the widest glacier in the world,” Ted Scambos, a senior research scientist at the Cooperative Institute for Research in Environmental Sciences (CIRES) and lead coordinator for the International Thwaites Glacier Collaboration (ITGC), said in a press release. “It’s doubled its outflow speed within the last 30 years, and the glacier in its entirety holds enough water to raise [global] sea levels by over two feet. And it could lead to even more sea level rise, up to 10 feet, if it draws the surrounding glaciers with it.”
(Excerpt) Read more at msn.com ...
“What total BS!! In the last 100 years the sea level has risen less than a foot (8-9 inches).”
Absolutely... Know what makes these break off? Too much added mass from accumulation.
Just like Avalanches...
Take all the Cargo ships and the worlds Navy’s out of the oceans and sea levels will drop. Those ships displace millions of gallons of water each. Look it up.
Well, we can see ol’ Barack Obunga is really sweating the rising sea levels....buying that 14 million $$$$$ beach property on Cape Cod.
California should move there.
I agree with your central point, but the submersion of parts of Alexandria was caused by sudden earthquake subsidence, not gradual sea rise
I have gone to the same beach for over 50 years the walk from the car across the sand has not changed lmao
Failed attempts have been tried in the past, but I see a vet possible fresh water business opportunity here...
Hey they already said a few years ago we only had 12 years left, it is too late.
We now uave 9+ years left no matter what.... :)
Are you sure about that? Smile...
Yep, you’re right on target.
They fudged the declining numbers. The Polar Bear populace
is alive and well.
The ice in the Arctic Region has increased and is at a healthy
(whatever that means) level today.
As for the Antarctic, it seems to be experiencing a down turn
right now, but these things are cyclical.
The ‘woe is me’ folks need watching for their own well
being.
“Popular Science?”
Or an “ELF” rag?
The Earth’s climate has been changing for 2 billion years, and there is absolutely nothing humans can do about it.
Popular Science now needs to donate to FReeRepublic for that environment class.
5.56mm
wow
i havent read political science for a while
now i know why
50 billion tons of ice per year! That works out to .005 inches of sea level rise. If that’s 4% of the total sea level rise, then the total sea level rise per year is... 0.12 inches. Or 12 inches per century.
Now, if you think the fact that this melting glacier is only 4% of ocean-water rising, you might think that there is a total of 25 times more melting glacier out there, right? Wrong. Most of global sea-level rise — if there is any global warming — is adiabatic. The ocean water expands with heat, just like the fluid in a thermometer. If the Earth really has warmed up a whole half of a degree, then that accounts for nearly all of the rest of sea level rise.
“Then sea level rise must be WORSE than a foot a century!” you wrongly surmise. No, all the sea ice and ice shelves in the world could melt and the ocean level would rise ZERO inches. When ice floating on the ocean melts, its volume decreases by exactly the same proportion of the ice that sticks up above the water. The fact that a given weight of ice takes up more space (or, in other words, is less dense) is why any ice floats above the water at all.
THIS glacier is not typical for Antarctica. Most ice in Antarctica would need to warm up by 100 degrees or more to melt.
Lying Democrat scum.
“The melting is caused by volcanic activity under the ice - NOT any so-called global warming.”
You beat me to it.
No, “they” are not that stupid. “They” just think we are.
When the Left gets angry and cusses, they yell, “Doom it”.
Very fashionable...
Don't laugh - those are TALL glaciers - I mean, thier peaks reach a
third of the way to the Moon!
Okay - NOW you can laugh.
Sally, tell me whether or not your a Democrat (I would bet money you are) and if by some miracle your not I will read your article!
If your a democrat, you are too stupid for a serious person to waste time reading.
.................................................
Sara not Sally, but your points are spot on!
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