Ice age Laurentide Glacier retreat

Just wanted to release a quick video showing the progress of my History of North America project. In this video you can see the decline of the Laurentide Ice sheet which covered North America during the last glacial maximum.

Music: Olympus
Artist: Ross Bugden

[steven_-zf]

Loved this video! I am a lover of history, geography, astronomy, astrology, etc.

[mariajoseoliveira]

Beautifully done! Can´t wait for the sequence.

[jasonfaulkner]

20000 to 18000 BCE. Living in Florida would be like WTF? First the ocean inundates 100 miles inland over 750 years, then the oceans go back out over another 750 years. Two opposite clan-community history themes. First retreating from water, then chasing it out... then the ocean comes in again, and keep coming in. Woe to those with historic expectations. The water kept coming in. Like a bear stock market.

[hui-hui]

just found out about your channel! One of my favorites! Great amount of detail :D

[KitagumaIgen]

What I find interesting is that the interior of Alaska was not under ice - the topography was so clearly erosion-dominated and more reminiscent of what one finds in Japan and so completely different from, say, Scandinavia...

[HurricaneHunter]

Yo man, i am excited for this, can't wait!

[christorres]

Can you show how it affected Europe the Mediterranean? They say the floods from this melt caused the Flood Myths

[theftmoxi]

0:01 ahh i had memories i used to live in Beringia its a lovely place to live man it has monkeys and I saw sea sawing man

[TheSamknu]

Not sure where the sequence is from or how data was applied, but it is my understanding that the driftless region of south western Wisconsin, north eastern Iowa and south eastern Minnesota were never fully covered by this glacial advance. I could be wrong. College was in the nineties. Maybe I've just been telling myself the wrong thing when I get down in those valleys trying to catch native trout.
And it is beautiful work, this map.

[PlayNowWorkLater]

I really like this for the greater ice sheets melting. But I think that it should show the remnants of alpine glaciers on the west coast. I live in this area and I know ow for a fact there are large areas of glaciers that still remain, and they are remnants of an ice sheet that was previously there. North of Vancouver there are a number of glaciers. West of Banff national park as well. And then Kluane National Park in the Yukon and its American 🇺🇸 counterpart of Denali national park arena large ice sheets. Definitely leftovers from the retreat of the ice sheet. These are not shown on this map

[craighamley]

If this map is accurate concerning the Aleutian islands and sea ice, why would it not have been possible for the earliest humans to cross from Siberia to the Alaskan coastline by island hopping using frozen sea ice or boats or a combination of the two, as early as 20-30k years ago, rather than crossing using the Berengia ice-free corridor theory many thousands of years later? There are a growing number of discoveries showing early human settlement in South America and in North America (such as the footprints discovered at White Sands New Mexico) that predate the ice-free corridor by several thousand years. That theory may account for some migration, but it doesn't seem to hold up as far as being the only time or even the first time that humans crossed into North America.

[PeteV]

This is not accurate. Glaciers didnt recede that early and no younger dryas event

[Robboa]

For the western sector, ice positions were “extrapolated” to eastern positions without dating, and without other ice position information (such as moraines). It’s all speculation, and reinforced by minimum dates that don’t record actual ice positions.

[moth]

I wonder if Vancouver Island and the Queen Charlette Islands connected to the mainland during the Last Glacial Maximum.

[Sid-guqk]

Where's lakes Agassi and Ojibway?

[stevenbaumann]

Epic! Well done. Great animation.

Just one thing. The Pleistocene is an Epoch. Not an Era.

[denzel]

PLS drop the North America video soon brother

[BrianLyons]

Two years have passed and there's still no North American video.

[Rnankn]

There is no arctic sea ice by 9000 ybp, which is wrong. There still is today. Is this just made up bs?

[DavidElzeitsinfill]

One thing we need to do is move water from the ocean back inland to places we need it and if we can do that while generating clean energy we have a chance to mitigate climate change and still have a prosperous future. It is really, really hard but it is not impossible.

The biggest idea I am trying to express is tunneling aqueducts from the coast, in this case the west coast of the USA inland to feed combination geothermal power and sea water desalination plants. The idea seems to be so big that no one has considered it possible but I believe it is not only possible but it is necessary. For over a century the fossil water contained in aquifers has been pumped out to feed agriculture, industry and municipal water needs. The natural water cycle cant refill fossil water deposits that were filled 10, 000 years ago when the glaciers melted after the last ice age. Without refilling these aquifers there is not much of a future for the region of the United states. As a result ground levels in some areas of the San Joaquin Valley have subsided by more than 30 feet. Similar fossil water depletion is happening in other regions all around the world. TBM and tunneling technology has matured and further developments in the industry are poised to speed up the tunneling process and it's these tunnels that are the only way to move large volumes of water from the ocean inland. The water is moved inland to areas where it can be desalinated in geothermal plants producing clean water and power. In many cases the water will recharge surface reservoirs where it will be used first to make more hydro power before being released into rivers and canal systems. It's very important however to not stop tunneling at these first stops but to continue several legs until the water has traveled from the ocean under mountain ranges to interior states. Along the way water will flow down grade through tunnels and rise in geothermal loops to fill mountain top pumped hydro batteries several times before eventually recharging several major aquifers. What I am proposing is essentially reversing the flow of the Colorado River Compact. Bringing water from the coast of California first to mountaintop reservoirs then to the deserts of Nevada and Arizona and on to Utah, New Mexico, Colorado and Wyoming. This big idea looks past any individual city or states problems and looks at the whole and by using first principles identifies the actual problem and only solution.

Thank you for your time, I would like the opportunity to explain in further detail and answer any questions.