What Are Glaciers? Crash Course Geography #26

Today we’re going to talk about glaciers. These behemoth globs of compressed ice and snow moving across the land created fertile soils and physical features while also serving as frozen time capsules. They recorded both Earth’s climatic history over several million years and contain clues to its climatic future. By now we hope it’s become clear that the Earth is ever-changing, and glaciers have often been a crucial part of that change from the erratic boulders found in New York City’s Central Park to the beautiful spire of the Matterhorn in the Alps on the border of the Italy and Switzerland.

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#CrashCourse #Geography #Glaciers

[slowpoke]

What do you call it when a duck gets frozen in a glacier?

quack in the ice!

[Masada]

In a while a video like this may be titled “what were glaciers?”

[celestial_jesse]

I hope we can get our act together and keep glaciers in existence. They're such beautiful things.

[kuoseis]

Didnt know New York had such an extensive landscape

[deanwinchester]

Got to see and touch some glaciers in Banff National Park in Canada. Was awesome to see.

[MisterMockery]

So genuine question, is the main concern with climate change the fact that the glaciers are melting much faster now then they’re expected to? A lot of climate deniers like to claim that the glaciers melting is meaningless cause they’ve melted before.

[hue]

if we’re in an ice age… within an inter-glaciation how does the climate change affect this? are we in danger of not receiving the glaciación period? what happens if we don’t receive that cooling period… what happens when we DO? when would that be? great video! really made me think!!

[Manzmomz]

I can't believe the phrase "Ithaca is Gorges" didn't make its way into the intro.

[camiloharritt]

Alize this video was so amazing keep up the good work I never now dat

[jesusmedina]

I was stationed in Ft Drum NY, I remember taking a geology class an we took a trip to Lake Ontario, we found fossils and there were reminiscences of the first super continent Rodinia. I thought that was cool, thanks Dr. Ebey, she rocks 🪨!!!

[franl]

What I can't get over is the incredible power of glaciers - half a continent covered with mile-deep ice on the move, all of it being pushed from the source.
Glaciers affect the earth's crust, too: I read that the weight of the glacier pressed the land surface down, and as the ice retreated, the crust has started to "bounce" back to its original position - it said that the European plate is lifting in the south while still being compressed in the north.
I'm far from an expert and stand ready to be corrected on both these points!

[peepeetrain]

are erratics also called dropstones? or are dropstones different?

[LuchadorMasque]

He was a really hyped up WCW wrestler in like 1999

[BrianHutzellMusic]

Cue the music from "Frozen!" (That is, until Disney's lawyers swoop in...)

[gurgelurk]

You forgot yo mention the post-glacial rebound.

[rparl]

So I can't have a little one in my back yard?

[sizanogreen]

Day 134: I have still been unable to find, let alone contact, the local native nation where I live here in the western part of southern germany. I am starting to fear that it may be bavaria.

[jonthegeologist]

Okay this is basically becoming crash course geology now lol

[SinHurr]

I'll take "melting" for $1, 000 Alex--oh now I made myself double sad :(

[iwontliveinfear]

What are glaciers?
Something that won't exist in a few years.