Aces High Bulletin Board

General Forums => The O' Club => Topic started by: MiloMorai on September 06, 2022, 02:49:20 PM

Title: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 06, 2022, 02:49:20 PM
The loss of a glacier the size of Florida in Antarctica could wreak havoc on the world as scientists expect it would raise global sea levels up to 10 feet. It's already melting at a fast rate — and scientists say its collapse may only rapidly increase in the coming years.

The Thwaites Glacier is the widest on Earth at about 80 miles in width. But as the planet continues to warm, its ice, like much of the sea ice around Earth's poles, is melting. The rapidly changing state of the glacier has alarmed scientists for years because of the "spine-chilling" global implications of having so much additional water added to the Earth's oceans, sparking its nickname of the "doomsday glacier."

https://www.msn.com/en-ca/weather/topstories/doomsday-glacier-hanging-on-by-its-fingernails-scientists-say/ar-AA11wswC?ocid=msedgdhp&pc=U531&cvid=d55b8e4462f740f7a491b7edc4e3ac80

Get your hip waders out.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: sparky127 on September 06, 2022, 02:51:54 PM
But what do YOU think?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 06, 2022, 03:05:43 PM
But what do YOU think?

what do you think.

me I want some ice now.


semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 06, 2022, 03:25:09 PM
But what do YOU think?

Living up to your nick, sluggo. Why would I say, get your hip waders?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: nopoop on September 06, 2022, 04:03:54 PM
My God, is obummers beach front house in danger ????
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 06, 2022, 04:05:24 PM
My God, is obummers beach front house in danger ????

So is maralargo.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Eagler on September 06, 2022, 04:06:38 PM
Think you should worry about being struck by lightning or shark bite...but carry on with this silliness

Eagler
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Vulcan on September 06, 2022, 04:11:34 PM
TIL glaciers have fingernails.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Busher on September 06, 2022, 04:37:41 PM
Think you should worry about being struck by lightning or shark bite...but carry on with this silliness

Eagler

Is it silliness because there is little point in worrying about something over which you have no control? or because scientific cautions need to be tempered with opinion?

My home is at 974' ASL and my lawn needs water.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: icepac on September 06, 2022, 06:55:31 PM

Why are those planes that landed in WW2 in greenland deeper in the ice every time an expedition goes out there?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 06, 2022, 07:21:48 PM
Why are those planes that landed in WW2 in greenland deeper in the ice every time an expedition goes out there?

gravity?

semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 06, 2022, 07:57:46 PM
For most of the earth's existence there have been no polar ice caps. Let them melt so the earth can get back to normal.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 06, 2022, 07:59:51 PM
gravity?

semp

Each year the heavy snowfalls in Greenland bury those planes deeper into the icefield. This isn't rocket science bro.

Btw, I learned this on Jeopardy.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: 100Coogn on September 06, 2022, 08:03:00 PM
Hopefully the caps will melt soon.  Free water for everyone.  :banana:

Coogan
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 06, 2022, 08:11:53 PM
Each year the heavy snowfalls in Greenland bury those planes deeper into the icefield. This isn't rocket science bro.

Btw, I learned this on Jeopardy.

explain the plane in the alps they found last month. it isn't rocket science.


semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 06, 2022, 08:15:56 PM
It's kind of scary to think that some people may only have a few hundred years to pick up and move a few feet back from the beach when the water starts to rise.

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Meatwad on September 06, 2022, 08:19:13 PM
If I put ice in a glass of water and the ice melts, does the water in the glass stay the same or magically increase
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 06, 2022, 08:20:24 PM
Most of North America used to be covered by glaciers. Will they melted it turned out to be a pretty good thing.

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 06, 2022, 08:25:07 PM
explain the plane in the alps they found last month. it isn't rocket science.


semp

What is there to explain? In the Alps it got hot enough to melt enough snow to explose the aircraft. Greenland on the other hand...

https://visitgreenland.com/about-greenland/greenland-climate-weather/

Quote
Greenland has an Arctic climate with average temperatures that do not exceed 10° C (50° F) in the warmest summer months. The air quality in Greenland is among the best in the world due to the country’s geographical position to the high north.

In the southern part of the country and the innermost parts of the long fjords, the temperature can, however, rise to more than 20° C (68° F) in June, July or August, and due to the fine air quality and low levels of moisture in the air, in general you are able to see very, very far.

See? No rocket science here either and a simple internet search came up with the answer in milliseconds. It simply got far warmer in the Alps than it does in Greenland. :)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 06, 2022, 08:29:19 PM
If I put ice in a glass of water and the ice melts, does the water in the glass stay the same or magically increase

if you start with ice and water all the way to the top. water in the glass will remain the same.

if instead of water you add whiskey, glass will mostly be empty.

prove me wrong on both items.


semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: bj229r on September 06, 2022, 08:33:58 PM
explain the plane in the alps they found last month. it isn't rocket science.


semp
It crashed?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 06, 2022, 08:36:54 PM
It crashed?

(https://media.giphy.com/media/3ohs7JomJSRdlxaVGg/giphy.gif)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Toad on September 06, 2022, 08:39:16 PM
Quote
One of the earliest signs that the poles were ice-free and warm 100 million years ago was the discovery at the turn of the 20th century of fossil breadfruit trees from the Cretaceous in Greenland; today such trees are at home in places like Hawaii. Since then, even more extraordinary finds have been made.

The most evocative image of a warm Arctic has emerged from the work of John Tarduno of the University of Rochester, New York. For more than a decade, Tarduno has been hunting for fossils on Axel Heiberg Island in the Canadian Arctic, just west of Greenland. The island was already well within the Arctic Circle 90 million years ago.

His team has found bones and even partial skeletons of a crocodile-like creature called a champsosaur from this period. The champsosaur was a fish-eating reptile up to 2.4 metres long that probably looked much like the gharials of India. Because these reptiles would have relied on their environment to stay warm, conditions in the far north must have been far hotter than today. “These fossils speak volumes,” says palaeoclimatologist Paul Wilson of the University of Southampton in the UK.            https://1776now.org/when-crocodiles-roamed-the-arctic/#:~:text=The%20island%20was%20already%20well%20within%20the%20Arctic,probably%20looked%20much%20like%20the%20gharials%20of%20India.

Amazingly enough, it seems Earth's temperature has varied widely over the eons. Eons when no humanoids built fires or had herds of farting cows. What a puzzlement.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: sparky127 on September 06, 2022, 08:47:15 PM
There's a lot of fresh water locked up in the polar caps.  LV and LA could really use that water.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 06, 2022, 08:49:54 PM
There's a lot of fresh water locked up in the polar caps.  LV and LA could really use that water.

They need to quit wasting water on their lawns and in their swimming pools, don't they know the Colorado River doesn't make it to the Gulf now?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Meatwad on September 06, 2022, 08:59:43 PM
Needs a government incentive to replace lawns with astroturf. No more lawns to water and no evil polluting gas lawnmowers to mow it. Saves on water AND
going green by.not using gas to mow. Win win.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 06, 2022, 09:04:25 PM
What is there to explain? In the Alps it got hot enough to melt enough snow to explose the aircraft. Greenland on the other hand...

https://visitgreenland.com/about-greenland/greenland-climate-weather/

See? No rocket science here either and a simple internet search came up with the answer in milliseconds. It simply got far warmer in the Alps than it does in Greenland. :)

still say gravity. not to be argumentative but if you check the thickness of the ice and figure that the plane was 300 feet under. I say gravity also had something to do with it. unless the ice thickness grew by 300 feet in that area.


semp

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: sparky127 on September 06, 2022, 09:06:33 PM
Maybe you should read a book about how glaciers work.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 06, 2022, 09:15:51 PM
still say gravity. not to be argumentative but if you check the thickness of the ice and figure that the plane was 300 feet under. I say gravity also had something to do with it. unless the ice thickness grew by 300 feet in that area.


semp

Gravity can't pull a plane through ice or any other solid.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Eagler on September 07, 2022, 07:29:08 AM
Never fear ...stupidity is here!

It will stop melting and refreeze as soon as gas is $15 a gallon and a normal power bill is $500 a month..and everyone owns an ev they can't charge..

We are so smart now we can control everything even the climate .. just ask the vegetable leading us now...

It's the perfect boogeyman...better than the shot...you will see...

Eagler
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: sparky127 on September 07, 2022, 07:45:47 AM
Gravity can't pull a plane through ice or any other solid.

Maybe it's the weight of all that snow and ice piled on top of it pushing it down..  Not so smart now, are you?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 07, 2022, 08:17:55 AM
I could see if maybe the ice melts and refreezes that it could sink the planes. More likely is that more snow and ice just gets packed on top.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: sparky127 on September 07, 2022, 08:36:43 AM
You may be on to something.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: AKIron on September 07, 2022, 09:14:43 AM
Saw an article this morning about the rise of sea level by up to a foot due to irreversible melting of snow and ice on Greenland. Started to get excited thinking these doomsayers may finally get one right then I read the end of the article, by 2100. Damn. 
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 07, 2022, 05:07:30 PM
All these excessive heat waves are because there is less ice to cool the planet.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 07, 2022, 08:19:30 PM
Ice doesn't cool the planet. It's the other way around.

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 07, 2022, 08:39:14 PM
Ice doesn't cool the planet. It's the other way around.

planet cools the ice?  jk

I'm waiting for my freezer to turn water into ice,  so I can have some whiskey. I deserve it.

semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 07, 2022, 09:21:58 PM
Ice doesn't cool the planet. It's the other way around.

Does a block of ice in a room cool the room?

When the ice is gone does the room warm up?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: 100Coogn on September 07, 2022, 09:23:12 PM
Does a block of ice in a room cool the room?

When the ice is gone does the room warm up?

Are you that stupid?  I really want to know.

Coogan
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 07, 2022, 09:58:38 PM
Are you that stupid?  I really want to know.

Coogan

Must have been my imagination growing up.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: knorB on September 08, 2022, 06:54:41 AM
Must have been my imagination growing up.
1888 was tough time.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 08, 2022, 12:19:06 PM
planet cools the ice?  jk

I'm waiting for my freezer to turn water into ice,  so I can have some whiskey. I deserve it.

semp

If you're putting ice in your whiskey you deserve neither ice nor whiskey.

Friggin heathens everywhere these days.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 08, 2022, 12:22:35 PM
@HiTech can we ban guncrasher the heathen for putting ice in his whiskey?

(https://media.giphy.com/media/fe4dDMD2cAU5RfEaCU/giphy.gif)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: bj229r on September 08, 2022, 12:31:38 PM
Wife got these little cube/stone things that you freeze and THEN put in your whiskey. Cools it down, doesn't add water to expensive whiskey
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 08, 2022, 12:39:10 PM
Wife got these little cube/stone things that you freeze and THEN put in your whiskey. Cools it down, doesn't add water to expensive whiskey

That is an acceptable way to cool your whiskey if you so choose.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Vulcan on September 08, 2022, 03:35:59 PM
Just add some pepsi, it cools it down far faster and fixes the flavour.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: bj229r on September 08, 2022, 05:03:49 PM
I just chug it room temperature straight. Tomorrow is payday I believe in gonna buy a bottle of Ardbeg
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 08, 2022, 05:11:41 PM
I just chug it room temperature straight. Tomorrow is payday I believe in gonna buy a bottle of Ardbeg

'Ard Core is the latest limited edition by Ardbeg. It kind of has a strong peat to it for the first few sips and then it suddenly disappears. What's left is fantastic.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 08, 2022, 05:50:36 PM
If you're putting ice in your whiskey you deserve neither ice nor whiskey.

Friggin heathens everywhere these days.

in my defense I can't afford the good whiskey, so I have to water it down.  sweet drinks or anything with cola aren't for me.  sweet stuff makes me nauseous.


semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Toad on September 08, 2022, 06:50:59 PM
Perspective.

I've survived them all; didn't freeze and didn't burn up. Earth has also survived and will undoubtedly continue to do so.

(https://www.evolutionisamyth.com/wp-content/uploads/2020/04/time-magazine-cooling-to-warming-covers.jpg)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: bj229r on September 08, 2022, 07:00:06 PM
'Ard Core is the latest limited edition by Ardbeg. It kind of has a strong peat to it for the first few sips and then it suddenly disappears. What's left is fantastic.
Bought this
(https://www.ardbeg.com/sites/ardbeg/files/2020-04/001a%20Ardbeg%20Wee%20Beastie%20bottle%20front-Grey%201200x1600px.jpg)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Meatwad on September 08, 2022, 07:36:22 PM
Chocolate, tar, and savory meats, and pine resin? Is that for drinking or painting on lumber?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Toad on September 08, 2022, 07:37:25 PM
Chocolate, tar, and savory meats, and pine resin? Is that for drinking or painting on lumber?

I don't think you want to start another Paint thread.  <g,d,r>
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 08, 2022, 07:44:03 PM
Bought this
(https://www.ardbeg.com/sites/ardbeg/files/2020-04/001a%20Ardbeg%20Wee%20Beastie%20bottle%20front-Grey%201200x1600px.jpg)

Wee Beastie is Ardbeg's entry level whisky but that doesn't mean it's bad by any means, it's quite good. Have a shot for me. ;)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Meatwad on September 08, 2022, 09:09:11 PM
I don't think you want to start another Paint thread.  <g,d,r>

Probably not, it seems talking about paint makes people upset  :rofl
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 08, 2022, 10:35:20 PM
Probably not, it seems talking about paint makes people upset  :rofl

some people thought it was about sniffing paint while it dries.


semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 08, 2022, 11:10:10 PM
some people thought it was about sniffing paint while it dries.


semp

You do that? You know that's bad for you right? Right?

(https://media.giphy.com/media/CUbiYQbsKSGAM/giphy.gif)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Chalenge on September 09, 2022, 02:56:07 PM
How much has the sea level risen since the climate crisis began? In Freedom Units, please.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Busher on September 09, 2022, 04:08:45 PM
How much has the sea level risen since the climate crisis began? In Freedom Units, please.

No idea WTF a Freedom Unit might be but I found this statement from the Smithsonian:

"But now Earth's seas are rising. Globally, sea level has risen about eight inches since the beginning of the 20th century and more than two inches in the last 20 years alone."

Maybe forget the boarder wall plans in favor of dykes? They work okay in the Netherlands but then you got that darn windmill issue. :rolleyes:
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Toad on September 09, 2022, 05:01:48 PM
If that trend continues, it could be up another foot in 120 years?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: perdue3 on September 09, 2022, 05:50:06 PM
If that trend continues, it could be up another foot in 120 years?

The rate has increased from just over an inch per 20 years to 2 inches per 20 years. So if the rate continues to increase at its current pace, it will be much higher than a foot more in 120 years. If the rate holds as current, yes, 12 inches in 120 years.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 09, 2022, 08:00:14 PM
Who cares? The earth has been far hotter in it's history than it is now or will be in the foreseeable future.

For most of earth's history there have been no polar ice caps. Etc etc etc.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Arlo on September 09, 2022, 08:01:27 PM
The concern is human habitability, silly goose.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: bj229r on September 09, 2022, 08:02:51 PM
What amount of warming are we talking about here?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 09, 2022, 10:16:45 PM
Who cares? The earth has been far hotter in it's history than it is now or will be in the foreseeable future.

For most of earth's history there have been no polar ice caps. Etc etc etc.

Was the atmosphere breathable?

Polar ice caps also serve as reservoirs for huge amounts of the earth's water . Geologists suggest that three-quarters of the world's fresh water is frozen at the North and South Pole. Most of this freshwater ice is in the Southern Hemisphere. The Antarctic ice cap alone contains over 90% of the world's glacial ice, sometimes in huge sheets over 2.5 mi (4 km) deep and averaging 1.5 mi (2 km) deep across the continent. It has been estimated that enough water is locked up in Antarctica to raise sea levels around the globe over 200 ft (61 m), drowning most of the world's major cities, destroying much of the world's food-producing capacity, and ending civilization.

Although the polar ice caps have been in existence for millions of years, scientists disagree over exactly how long they have survived in their present form. It is generally agreed that the polar cap north of the Arctic Circle, which covers the Arctic Ocean, has undergone contraction and expansion through some 26 different glaciations in just the past few million years. Parts of the Arctic have been covered by the polar ice cap for at least the last five million years, with estimates ranging up to 15 million. The Antarctic ice cap is more controversial; although many scientists believe extensive ice has existed there for 15 million years, others suggest that volcanic activity on the western half of the continent it covers causes the ice to decay, and the current south polar ice cap is therefore no more than about three million years old.

At least five times since the formation of the earth, because of changes in global climate , the polar ice has expanded north and south toward the equator and has stayed there for at least a million years. The earliest of these known ice ages was some two billion years ago, during the Huronian Epoch of the Precambrian Era. The most recent ice age began about 1.7 million years ago in the Pleistocene Epoch . It was characterized by a number of fluctuations in North polar ice, some of which expanded over much of modern North America and Europe , covered up to half of the existing continents, and measured as much as 1.8 mi (3 km) deep in some places. These glacial expansions locked up even more water, dropping sea levels worldwide by more than 30 ft (100 m). Animal species that had adapted to cold weather , like the mammoth, thrived in the polar conditions of the Pleistocene glaciations, and their ranges stretched south into what is now the southern United States.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 10, 2022, 09:33:45 AM
I did some quick research on this glacier last night. It turns out that there is no consensus that the glacier will break up, but if it does break up they think it would be over the next 200 to 1,000 years.

So if it breaks up it's not going to suddenly just break apart.

And I've seen the same article popping up. I think it's just more of the same chicken little, Doom and gloom that some organizations like to pedal.

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 10, 2022, 09:36:24 AM
Was the atmosphere breathable?

Polar ice caps also serve as reservoirs for huge amounts of the earth's water . Geologists suggest that three-quarters of the world's fresh water is frozen at the North and South Pole. Most of this freshwater ice is in the Southern Hemisphere. The Antarctic ice cap alone contains over 90% of the world's glacial ice, sometimes in huge sheets over 2.5 mi (4 km) deep and averaging 1.5 mi (2 km) deep across the continent. It has been estimated that enough water is locked up in Antarctica to raise sea levels around the globe over 200 ft (61 m), drowning most of the world's major cities, destroying much of the world's food-producing capacity, and ending civilization.

Although the polar ice caps have been in existence for millions of years, scientists disagree over exactly how long they have survived in their present form. It is generally agreed that the polar cap north of the Arctic Circle, which covers the Arctic Ocean, has undergone contraction and expansion through some 26 different glaciations in just the past few million years. Parts of the Arctic have been covered by the polar ice cap for at least the last five million years, with estimates ranging up to 15 million. The Antarctic ice cap is more controversial; although many scientists believe extensive ice has existed there for 15 million years, others suggest that volcanic activity on the western half of the continent it covers causes the ice to decay, and the current south polar ice cap is therefore no more than about three million years old.

At least five times since the formation of the earth, because of changes in global climate , the polar ice has expanded north and south toward the equator and has stayed there for at least a million years. The earliest of these known ice ages was some two billion years ago, during the Huronian Epoch of the Precambrian Era. The most recent ice age began about 1.7 million years ago in the Pleistocene Epoch . It was characterized by a number of fluctuations in North polar ice, some of which expanded over much of modern North America and Europe , covered up to half of the existing continents, and measured as much as 1.8 mi (3 km) deep in some places. These glacial expansions locked up even more water, dropping sea levels worldwide by more than 30 ft (100 m). Animal species that had adapted to cold weather , like the mammoth, thrived in the polar conditions of the Pleistocene glaciations, and their ranges stretched south into what is now the southern United States.

I think it's a good thing that the glaciers retreated from the equator.

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: RotBaron on September 10, 2022, 09:52:22 AM
Was the atmosphere breathable?

Polar ice caps also serve as reservoirs for huge amounts of the earth's water . Geologists suggest that three-quarters of the world's fresh water is frozen at the North and South Pole. Most of this freshwater ice is in the Southern Hemisphere.

And??

Are you planning on transporting that fresh water to continents  :rofl
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 10, 2022, 11:07:00 AM
And??

Are you planning on transporting that fresh water to continents  :rofl

Have read of bergs being towed to near places where fresh water was needed. The berg is then harvested.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 10, 2022, 11:07:35 AM
I think it's a good thing that the glaciers retreated from the equator.

Continue showing your ignorance.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: mikeWe9a on September 14, 2022, 01:32:46 PM
Why are those planes that landed in WW2 in greenland deeper in the ice every time an expedition goes out there?
Glaciers grow at the top due to snow, and then compress that snow into ice due to the weight of the snow on top.  So that drives the planes deeper.  At the bottom or sides, ice may melt due to coming into contact with warm water (if the glacier extends to the ocean), or just be forced outward at the bottom by the enormous pressure of the ice above.  So the natural progression of ice (and anything in/on it) in an active glacier is to sink as snow/ice is added above it and ice at the bottom is removed.  Anything in the glacier will eventually either be dropped into the sediment at the bottom or expelled with ice it is trapped in, presuming it isn't crushed or pulverized first, though this can take some time- the oldest ice in Greenland glaciers are estimated to be over 100,000 years old.

Mike
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: mikeWe9a on September 14, 2022, 02:18:11 PM
Have read of bergs being towed to near places where fresh water was needed. The berg is then harvested.
I've read of PLANS to do so - it has never been done as a source of fresh water.  It HAS been done commercially (using very small icebergs) as a source of "glacier" or "iceberg" water, however.  You can buy it bottled on Amazon, for around $35/liter, or $140/gallon.  It is a luxury or novelty product, not a viable supply of drinking water.

Mike
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: TryHard on September 14, 2022, 05:33:07 PM
Once again if only we used air conditioners to cool down the planet instead of our pretentious homes this would all be fixed  :salute

 :bhead :bhead :bhead

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 14, 2022, 06:32:52 PM
Continue showing your ignorance.

so you don't think it's a good thing that north America is no longer covered by ice?

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 14, 2022, 06:45:39 PM
so you don't think it's a good thing that north America is no longer covered by ice?

The equator and N America are quite far apart, about 1700 miles from the tip of Florida.

You really are clueless about what the ice does for the Earth, aren't you.

(https://image1.slideserve.com/2880563/last-ice-age-ice-coverage-n.jpg)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 14, 2022, 07:15:02 PM
That's the last ice age. There were more than one (I guess climate changes sometimes) and ice once reached the equator.

I think it's a good thing the ice retreated.

but even in your map, how do you think Canada and Europe (and Asia) were doing under the ice? Good thing the climate got warmer.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 14, 2022, 07:21:39 PM
716.5 million years ago and lasted ~5 million years.

How many humans around then?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 14, 2022, 07:32:50 PM
Probably not many humans would be around today unless that ice retreated. So it's a good thing it did.

I wonder what cause  all that warming back then?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Oldman731 on September 14, 2022, 08:02:46 PM
716.5 million years ago and lasted ~5 million years.

How many humans around then?


*raises hand*

- oldman
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 14, 2022, 09:35:16 PM

*raises hand*

- oldman

always knew you were there  :noid


semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 14, 2022, 11:23:36 PM

*raises hand*

- oldman

(https://media.giphy.com/media/6PdItpDwQ2CVG/giphy.gif)
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 15, 2022, 01:40:12 PM
Sea ice is frozen water that forms, expands, and melts in the ocean. It is different from icebergs, glaciers, ice sheets, and ice shelves, which originate on land. For the most part, sea ice expands during winter months and melts during summer months, but in certain regions, some sea ice remains year-round. About 15 percent of the world's oceans are covered by sea ice during part of the year.

While sea ice exists primarily in the polar regions, it influences the global climate. The bright surface of sea ice reflects a lot of sunlight out into the atmosphere and, importantly, back into space. Because this solar energy "bounces back" and is not absorbed into the ocean, temperatures nearer the poles remain cool relative to the equator.

When warming temperatures gradually melt sea ice over time, fewer bright surfaces are available to reflect sunlight back into the atmosphere. More solar energy is absorbed at the surface and ocean temperatures rise. This begins a cycle of warming and melting. Warmer water temperatures delay ice growth in the fall and winter, and the ice melts faster the following spring, exposing dark ocean waters for a longer period the following summer.

Changes in the amount of sea ice can disrupt normal ocean circulation, thereby leading to changes in global climate.  Even a small increase in temperature can lead to greater warming over time, making the polar regions the most sensitive areas to climate change on Earth.

Did you know?

Sea ice also affects the movement of ocean waters. The ocean is salty and when sea ice forms, much of the salt is pushed into the ocean water below the ice, although some salt may become trapped in small pockets between ice crystals. Water below sea ice has a higher concentration of salt and is denser than the surrounding ocean water, so it sinks and moves from the surface. In this way, sea ice contributes to the circulation of the global ocean conveyor belt. Cold, dense polar water descends from the surface and circulates along the ocean bottom toward the equator, while warm water from mid-depth to the surface travels from the equator toward the poles.

https://oceanservice.noaa.gov/facts/sea-ice-climate.html#:~:text=While%20sea%20ice%20exists%20primarily%20in%20the%20polar,the%20poles%20remain%20cool%20relative%20to%20the%20equator.

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Toad on September 15, 2022, 04:20:33 PM
Are there any significant long periods of time when the amount of sea ice did not change?

So, for instance, were there any centuries where the amount of sea ice was totally static? If so, how was that verified?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 15, 2022, 04:36:33 PM
How many things died because glaciers melted?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 15, 2022, 04:57:21 PM
How many things died because glaciers melted?

I would say almost all the creatures except for 1 pair of each.  it did rain for 40 days and 40 nights. since all earth was covered by water don't you think all glaciers melted? and that was a few thousand years ago.


semp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 15, 2022, 06:56:28 PM
I would say almost all the creatures except for 1 pair of each.  it did rain for 40 days and 40 nights. since all earth was covered by water don't you think all glaciers melted? and that was a few thousand years ago.


semp

so you think the glaciers suddenly melted within about 150 days and flooded everything?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 15, 2022, 08:25:15 PM
Near the end of the last Ice Age 8,000 years ago, an ice dam on North America's east coast broke, releasing a torrent of fresh water seven times more voluminous than all the Great Lakes combined. It all rushed into the Atlantic Ocean over the course of only a few months.

At around the same time, ocean circulation worldwide slowed to a crawl, plunging Europe into a second ice age that lasted centuries.

Scientists have long suspected the two events were linked, and now they have the evidence from sediment core samples to prove it.
https://www.livescience.com/873-bursting-ice-dam-flooded-ancient-ocean.html
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 15, 2022, 08:55:14 PM
Near the end of the last Ice Age 8,000 years ago, an ice dam on North America's east coast broke, releasing a torrent of fresh water seven times more voluminous than all the Great Lakes combined. It all rushed into the Atlantic Ocean over the course of only a few months.

At around the same time, ocean circulation worldwide slowed to a crawl, plunging Europe into a second ice age that lasted centuries.

Scientists have long suspected the two events were linked, and now they have the evidence from sediment core samples to prove it.
https://www.livescience.com/873-bursting-ice-dam-flooded-ancient-ocean.html

do the common theme is that global warming has always been good and cooling has been devastating.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: RotBaron on September 15, 2022, 08:59:15 PM
Changes in the amount of sea ice can disrupt normal ocean circulation, thereby leading to changes in global climate.  Even a small increase in temperature can lead to greater warming over time, making the polar regions the most sensitive areas to climate change on Earth.

Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: guncrasher on September 15, 2022, 09:07:29 PM
so you think the glaciers suddenly melted within about 150 days and flooded everything?

40 days and 40 nights of rain.


aemp
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 15, 2022, 10:11:12 PM
do the common theme is that global warming has always been good and cooling has been devastating.

The common theme is balance. To much of one is bad.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 15, 2022, 10:15:31 PM


What happenes when you drop a bag full of ice cubes in your hot bath?

Does that pitcher of cold water you just took out of the fridge get warmer if you leave it on the table?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Toad on September 15, 2022, 10:50:31 PM
Near the end of the last Ice Age 8,000 years ago, an ice dam on North America's east coast broke,

So what caused that? Was it somehow humanoid related? Or did the climate just change as it has been known to do?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: RotBaron on September 15, 2022, 11:08:03 PM
What happenes when you drop a bag full of ice cubes in your hot bath?

Does that pitcher of cold water you just took out of the fridge get warmer if you leave it on the table?

So what are you doing about your alleged impending catastrophe?

Are you just posting here, using up precious electricity while trying to make some unsubstantiated point?
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: -gg- on September 17, 2022, 12:09:55 PM
The important thing to remember is that we should all be terrified all the time about things we can't control, and we should always trust doomsday predictions even though none of them has ever come to pass.

Other than that, life had been good since the glaciers have melted away from the equator.

Say, does anyone know what the correct climate is for the earth? Was is when earth was covered in ice, or was it when earth was mostly hot and a tropical furnace?


Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: MiloMorai on September 17, 2022, 12:14:52 PM
So the military isn't necessary since the USofA hasn't been attacked.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Peanut1 on September 17, 2022, 02:46:40 PM
Why are those planes that landed in WW2 in greenland deeper in the ice every time an expedition goes out there?
This qualifies for the dumbest thing I have ever seen on the internets.
Title: Re: "Doomsday glacier" hanging on "by its fingernails," scientists say
Post by: Elfie on September 17, 2022, 02:50:33 PM
.