America's Ice Age Explained | How the Earth Was Made (S2, E12) | Full Episode | History

History should do this entire series over again with updated info. Feels like we learn more every year about the ancient past. I would watch again and again!

There's no stopping climate change, just enjoy the very short time you have on this amazing planet, earth will outlive all of humanity

I like shows like this WAY better than the reality show garbage they have now. The history channel used to be good to watch.

I remember when this episode came out. Watched it many times. I wish History Channel would go back to their roots.

I've been in that ice core lab in Denver! Went there for a class I took at University of Colorado.

Growing up in the Pacific Northwest, I have seen land carved out by the old glaciers from this time period. It even shaped the lanscapes more inland (Idaho and Montana). I spent six weeks in the backwoods of Maine and I saw the effects of these glaciers too.

That air trapped in the ice cores, and how it is air from thousands and even a million years ago. They know what the atmosphere was like throughout all that time. That’s so cool. I geeked out, over that.

"This rock, the size of an automobile and weighing just as much" 7:40 Really? I think it weighs a lot more than an automobile.

It’s hard to even imagine standing at the toe of an Ancient glacier thats over a mile high, that would be an incredible sight! Can’t help but wonder just how many ancient structures that were dozed flat by those glaciers

Corey Johnson, the narrator, does an amazing intro and makes the series engaging.

Change is constant.

I highly recommend visiting glaciers in AK or wherever. I saw "exit glacier" in 04, 14 & 15. It receded extremely noticeably in that decade. Going to be gone, probably in my lifetime.

Back when History Channel was great

It’s true what they said about Florida’s ancient coral reefs, I personally have seen coral digging as far west as Hialeah. Meaning that at some time it was underwater.

Great documentary...2 points: First, we are still in an Ice Age--we are in an interglacial period and "The Ice Age" hasn't actually "'ended" as this film claims. Second, most of the shrinking of our sea coasts is due to glacial rebound, not rising water levels. The northern portion of the American continent is still rebounding from the removal of the weight of that 16 million cubic miles of ice. They sort of slid past that when the geologist was discussing the deformation of the planet from the weight of the ice.

We go to Jamaica frequently and I love to check out the rock/coral that makes up the island. It's full of fossils from the reefs that have been exposed.

Excellent presentation on how ice ages shaped our world.. Thank for these documentaries. They are very informative..

I'm just amazed how our emmisions were able to make the ice melt 12,000 years before we emmitted them.

Thank you for making this available for free!

Excellent presentation on how ice ages shaped our world.