Cosmic Journeys - Fate of Antarctica

The episode of Cosmic Journeys explores the intersection of paleoclimate and current climate science. Through its turbulent history, Antarctica has played an important role in the evolution of planet Earth. This role will likely continue as a warming global climate begins to eat away at the ice sheets that cover the continent. The fate of the world as we know it is linked to the fate of Antarctica.

[a.randomjack]

I was listening to a documentary on some other channel
Then I said to myself "I know this style!!!"
And here it is :-)
Excellent doc. Thank you's for the excellent work on the doc and the research.

[angelataylor]

I thought i had already subscribed to this channel a while back, but i guess i didn't, and when i didn't see you in my timeline, i kinda just forgot about you till this morning. Love, love, love your work. I'm going on a binge.

[TCBYEAHCUZ]

1:40 i say this is probably the best CGI i've seen in a doco, i love it!

[akhenatten]

Excellent video, very well made!  I think as computer models get more and more advanced we will get an even clearer picture of what ancient earth was like and what it will be like in the future.

[akhilkaushik]

Watching this great informational documentry in 2020. One of best video ever watched on YouTube.

[surfnrg]

Whoever the narrator is... he's amazing... best to go to sleep

[pastelartadmiral]

This and entire history of the universe, S tier

[kilonaliosI]

I love this channel, it does a great job with documentaries and even though they are highest quality they offer them for free to us. I can only be grateful, keep up the amazing work and thanks for providing to us really valuable information in such a beautiful way.  

[maryouaziz]

Its a shame channels like this get a miniscule audience compared to vevo channels as well as video game channels. Honestly what's more important, virtual reality or the present reality.

[MikeRoePhonicsMusic]

You have some of the best narrators for your videos.

[supercakefish]

His voice is perfect for these videos.

[kevinNunns]

Who else watches these types of documentaries to fall asleep

[TheChats]

This taught me many things I didn't know--and the music was subtle.

[thedebateroom]

Thank you very much for clarifying what I've seen elsewhere on youtube and reddit about the western sheet.  Also, I had NO idea that the Permian flood basalt eruption was caused by an asteroid on the other side of the planet!

[SlevenKevin]

Another excellent piece as always.  Keep up the good work :3

[toxicipon]

8:58 What an amazing graphic! is that really how the currents are flowing? And if so I want to see a video about that.

[Axonteer]

Although i prefer the more "outward" space related  videos, these ones are also interesting and well edited. And the comment section is always fun to read. Its like watching a UFC match, with the only difference that the combatants arent martial arts experts but only random anonymous dudes on the internet taking swings at each other with the "Verbal -  Hammer" :D

[grindupBaker]

At 2:07 "50 kilometres in diameter" and then shows the rock spinning for 10 seconds heating in Earth's atmosphere by friction. Come on people, blast the cobwebs out of your brains. At 50 km diameter the rock strikes Earth when the top of it is 50 km up precisely at the top of the stratosphere where the mesosphere starts. The top of the rock is practically still in space when the bottom of it hits Earth. If you saw it from a commercial jet at cruising altitude you'd see it hit Earth far far below (below the clouds) and look up to see it extends up 5x as high as your jet. This pulverizes and vaporizes billions of tonnes of solid rock. Can you imagine how it just punches the atmosphere out of the way in a fraction of 1 second as though air was identical to the vacuum of space, which it is to this rock. The Chelyabinsk asteroid was just 18 m in diameter. He's saying this rock is 50, 000 metres in diameter. Meteor speed is 11-72 km / second so if this one was 40 km / second and 50 kilometres in diameter then it's closest point reaches the top of the stratosphere where the air density is 1, 290th of the air density you are breathing at the surface. It's essentially still in space, then all of 1.3 seconds later it smashes into the ground and it punches out air for the entire troposphere for the 50 km diameter like it didn't even exist, sending a pressure wave around Earth's atmosphere. You see a rock in space above and 1.3 seconds later it's all over. Check how long 1.3 seconds is on your cell phone stop watch. This ain't no pissy little baseball spinning for 10 seconds heating in Earth's atmosphere by friction.like in the video Otherwise, good interesting video nicely crafted. Omitted the big, long, interesting atmospheric carbon dioxide (CO2) event before humans started the even funner one. Starting 82, 000, 000 years ago the plate with India on it barrelled north east from Antarctica to Asia at a blistering 8" year churning up the sea bed and releasing CO2 for the 30, 000, 000 years until India smashed into Asia. By then it had raised atmospheric carbon dioxide (CO2) to a huge 1, 000-1, 800 ppmv which transformed Earth's climate into a "hot house" with 12 degrees higher Global Mean Surface Temperature (GMST) than now, at 52, 000, 000 years ago, then India was slowly shoving up the Himalayan mountains & Tibetan Plateau for millions of years (it still is) and the added rock weathering helped to take out atmospheric CO2 for 47, 000, 000 years until it had dropped all the way from 1, 000-1, 800 ppmv to 280 ppmv when it was cold enough for orbital & tilt cycles to trigger the glaciation period "Ice Ages" there's been for the last 5, 000, 000 years. Fun stuff.

[gemstarstation]

Earth will evolve just as it has done over billions of years. Nothing we can do except accept fate as it comes

[lcdvasrm]

That's a data visualization galore !