Between 15,000–14,500 years ago, the great Laurentide and Cordilleran ice sheets began shrinking, opening a corridor through Canada — the route many believed the first Americans traveled after crossing the Bering land bridge. But around 12,900 years ago, the warming stopped dead. A sudden, violent cold snap reversed 2,500 years of melting, plunging the planet back into near full-glacial conditions for 1,300 years. Something big hit reset on the Ice Age. | The Randall Carlson
1:24
Between 15,000–14,500 years ago, the great Laurentide and Cordilleran ice sheets began shrinking, opening a corridor through Canada — the route many believed the first Americans traveled after crossing the Bering land bridge. But around 12,900 years ago, the warming stopped dead. A sudden, violent cold snap reversed 2,500 years of melting, plunging the planet back into near full-glacial conditions for 1,300 years. Something big hit reset on the Ice Age. | The Randall Carlson
544.8K views8 months ago
FacebookThe Randall Carlson
At the last glacial maximum, North America wasn’t just cold...it was entombed. Two massive ice sheets dominated the continent: the Laurentide, rivaling Antarctica in scale, and the Cordilleran, larger than modern Greenland. As the ice age ended, more ice melted than what exists on Earth today. This wasn’t a gentle thaw. It was the loss of an entire frozen world. | The Randall Carlson
0:49
At the last glacial maximum, North America wasn’t just cold...it was entombed. Two massive ice sheets dominated the continent: the Laurentide, rivaling Antarctica in scale, and the Cordilleran, larger than modern Greenland. As the ice age ended, more ice melted than what exists on Earth today. This wasn’t a gentle thaw. It was the loss of an entire frozen world. | The Randall Carlson
52.4K views3 months ago
FacebookThe Randall Carlson
Deglaciation of North America
6:06
Deglaciation of North America
52.7K viewsNov 3, 2013
YouTubeGeology
Laurentide Ice Sheet - Alchetron, The Free Social Encyclopedia
Laurentide Ice Sheet - Alchetron, The Free Social Encyclopedia
Jan 3, 2011
alchetron.com
The recession of North American ice sheets. - With the Cordilleran Ice Sheet on the left and the Laurentide on the right, these two glacial bodies ruled a large chunk of the North America continent for thousands of years. As they receded, these glaciers opened up a pathway for migrating natives, who soon spread out and settled all over America. #climate #foryoupage #fyp #northamerica
1:02
The recession of North American ice sheets. - With the Cordilleran Ice Sheet on the left and the Laurentide on the right, these two glacial bodies ruled a large chunk of the North America continent for thousands of years. As they receded, these glaciers opened up a pathway for migrating natives, who soon spread out and settled all over America. #climate #foryoupage #fyp #northamerica
15.7K viewsAug 18, 2024
TikTokcybercoastal
Wisconsin glaciation - Alchetron, The Free Social Encyclopedia
Wisconsin glaciation - Alchetron, The Free Social Encyclopedia
Jul 28, 2011
alchetron.com
Mapping the Glacial Legacy of the Pacific Northwest
50:05
Mapping the Glacial Legacy of the Pacific Northwest
775 viewsApr 18, 2025
YouTubeSpokaneCountyLibrary
3:51
Missoula Floods Video an animated illustration of one scenario
15.3K viewsOct 4, 2024
YouTubeIce Age Floods Institute
1:24:50
Cordilleran Ice Sheet in Northwest Washington | Doug Clark | November 20, 2021
3.1K viewsNov 21, 2021
YouTubeQuimper Geological Society
2:04
The melting of Greenland's ice sheet may have a wide range of impacts in Colorado
Oct 10, 2022
9news.com
0:41
The Laurentide Was the Size of Antarctica. The Cordilleran Was the Size of Greenland.
48.9K views2 weeks ago
YouTubeThe Randall Carlson
According to the passage, where was the Cordilleran Ice Sheet thickest?
Jul 6, 2021
hoc247.net
North American ice sheets drove dramatic sea-level rise at the end of the last ice age
7 months ago
tulane.edu
Shrinking ice sheets
Jan 24, 2024
esa.int
51:40
Mapping the Glacial Legacy of the Pacific Northwest - Daniel Coe, WA-DNR
21.5K viewsAug 24, 2024
YouTubeIce Age Floods Institute
1:43
Huge hidden flood bursts through the Greenland ice sheet surface
9 months ago
MSNThe Associated Press
Ice Sheets & Glaciers | Science – GRACE-FO
Apr 7, 2017
nasa.gov
11:10
Energy Paradox
17.6K viewsDec 26, 2019
YouTubeAntonio Zamora
0:40
At the peak of the last ice age, North America was covered by not one but two separate and massive ice sheets - distinct from the Greenland ice sheet which was an entity unto itself. The Laurentide was the larger of the two - roughly equivalent in size to the ice sheet that currently covers Antarctica. Its center was positioned over Hudson Bay and it extended all the way to the flanks of the Rocky Mountains in western Canada. The second ice sheet - the Cordilleran - stretched from northern Idaho
18.1K views2 weeks ago
x.comRandall Carlson
1:04:53
Ralph Haugerud - April 2024 - Post-Mortem of Southern Cordilleran Ice Sheet
1.5K viewsApr 25, 2024
YouTubeQuimper Geological Society
Ice Sheets - Earth Indicator - NASA Science
7 months ago
nasa.gov
2:13
Cracks in Greenland's ice sheet "growing more rapidly due to climate change"
Feb 4, 2025
MSNStories by SWNS
1:15
When an ice sheet melts from an epicenter far north of its margin, surface meltwater and subglacial flow reach the edge at different times. Surface flow moves freely with minimal friction and arrives first. Subglacial flow fights through the base of the glacier against enormous resistance and arrives later. Both leave distinct deposits, and the layering around Flathead Lake preserves that sequence exactly - a forensic record of how the Cordilleran ice sheet collapsed, readable in the order the w
14.2K views2 months ago
FacebookThe Randall Carlson
2:12
Scientists find trapped heat beneath Greenland — impacting ice sheet motion and future sea level rise
4 months ago
MSNThe Brighterside of News
Melting Beauty:The Icefields of Patagonia - NASA Science
Mar 27, 2018
nasa.gov
Ashley Lake, Montana - Discovering Montana
Apr 4, 2022
discoveringmontana.com
0:59
Study shows cracks in Greenland ice sheet “growing more rapidly due to climate change”
Feb 4, 2025
MSNKameraOne India
NASA Data Peers into Greenland’s Ice Sheet - NASA
Jan 23, 2015
nasa.gov
The Ice Sheet at Ogden - Alchetron, The Free Social Encyclopedia
May 28, 2018
alchetron.com
17:18
Ice Age: Quaternary glaciation and Habitats of Hominin
85.7K viewsFeb 14, 2023
YouTubeGeoNomad
See more