Scientists drilled through 500 metres of Greenland’s ice — here’s what they found at the bottom (evidence that it all melted away previously)

Nature ^ | December 14, 2023 | Alexandra Witze

[DoodleBob]

I guess it was also conservatives’ fault the last time global warming melted the ice.

[ClearCase_guy]

But wouldn’t plate tectonics play a role in this? Greenland is up by the Arctic Circle today, but through continental drift, wouldn’t Greenland have been somewhere else millions of years ago? Someplace warmer?

[DesertRhino]

Glacier Girl is a P-38 Lightning fighter. Lost in weather, the pilot belly landed on the Greenland glacier in 1942. Fifty years later it was recovered under 300 feet of ice. It was brought to the surface and restored.

It didn’t -sink- in the ice. It sat on the surface, and the glacier grew 300 feet deeper since 1942.

Global warming and melting ice caps indeed.

[DesertRhino]

https://en.wikipedia.org/wiki/Glacier_Girl

[Gay State Conservative]

I love Central Park in New York and whenever I visit the city I try to visit the park. In the park there are rocky outcrops....which look like mini mountains to me...scattered all around. I discovered that those "mini mountains" were evidence that only a few thousand years ago that little chunk of land was enveloped in a glacier almost a mile high.

And it all melted long before the advent of cars...planes....electricity...etc.

[gundog]

https://m.youtube.com/watch?v=f6bWbDl2ItM

[piasa]

Not in just 3 million years.

[lee martell]

What did they find?
Let me guess, a half can of Coke and a whole Big Mac burger.
Both items still safe enough to eat!

[lizma2]

Native Americans didn’t swim here.

They walked over the Eurasian-North American land bridge.

When you read Geology you discover this planets climate has been all over the place prior to people!

[slouper]

Ice melts and freezes, who knew?

[dfwgator]

They walked over the Eurasian-North American land bridge.

Reunite Pangea!

[AZJeep]

Yes, but that takes a lot longer.
Continental drift is very slow to affect this.

[slouper]

I should say water freezes and melts and re freezes, who knew?

[Lockbox]

It drilled through 509 metres of ice at a site called Prudhoe Dome, and pulled up 7.4 metres of frozen sediment and rock.

So drilled down 509 meters to pull up 7.4 meters to find that some melted before. I think the question is not some melted but how did over 500 meters of ice form on top?

[The Free Engineer]

This is 40,000 years. Not 40 million. Greenland has not moved so far due to drift in that time.

[FrankRizzo890]

I would bet at the MOST it was about 12000 years ago. Something BIG happened back then.

[A Formerly Proud Canadian]

Those pesky dinosaurs drove too many SUVs back in the day, and caused the first melt. Bad dinosaurs!

[VTenigma]

Maybe that’s why they called it “Greenland”. Ya think?

[Jim W N]

500 metres of Greenland’s ice — here’s what they found at the bottom

[Nailbiter]

If dinosaurs were driving SUVs. What were they using as fuel? Since greenerfers believe dinosaurs are fossil fuel.
What was before dinosaurs?

Strange thoughts floating around my brain