Polar Extremes: Ice Worlds | Full Documentary | NOVA | PBS

[@CoolHand273]

What I love about NOVA is that it shows how scientists think and make their conclusions. It also helps us see the world in a different way. Thank you NOVA. Not everyone has the time or talent to get a PhD but this show brings the world of science to regular people.

[@captiveexile2670]

Onw wonder how much HIGHER SEA LEVEL will be in another 75 Years (after most of the GREENLAND SHEET has melted and caused half of FLORIDA (and "Maro Lago") to be accessiibe ONLY BY CANOE...and MANGROVES are TAKING OVER). Then it will be TOO LATE to "Listen to GRETA" ! ! !. (Psalm 12--- "HELP LORD"---> IN HIS TEACHINGS the ISLANDS WILL PUT THEIR HOPE? (ISAIAH 42:4) Amen.

[@이이-n4z8y]

That's how propaganda works....drone

[@souloftheteacher9427]

@@이이-n4z8y We gather you're more into propaganda than science? Maybe you could use a refresher course in the latter, so you can double check?

[@이이-n4z8y]

@@souloftheteacher9427 "we" you're a narcissistic sociopath.

[@quinn1222]

Thank you for closed captions! Much appreciated

[@SubvertTheState]

This is the Nova I couldn't wait for as a kid. Every Thursday night I would never miss it. Edit: If you want people to believe that CO2 levels are increasing, and that it has had drastic effects on climate in the past; this is precisely how you do it.

[@calvin99991]

Exactly; if you want to brainwash people into thinking that everything they do and everything they possess is destroying the Earth, this is precisely how you do it.

[@MJIZZEL]

CO2 makes up only 0.0004% of our atmosphere and is plant food. If it has as much affect on the temps as you think, then why when it was 10x higher than today (4000ppm), why were temps entering an ice age? Why were the Roman and mid evil warm periods hotter than today but with half the C02 concentration? Why did C02 start rising 40 years before the industrial revolution? There is no correlation with temps rising and no, 97% of climate scientists don't agree as over 10.000 have signed petitions condemning the PICC for changing graphs to fit the narrative. You have been misled.

[@jamescurtis1226]

Plants breath IN Co2 and breath OUT Oxygen. The very reason you have Air to breath is because of the Co2 in the atmosphere. If you want people to understand that what they are being told is only HALF of what they NEED to know this is how you do that as well. The Climate on Earth has been changing (just as the direction of the wind) since it was formed. Some days it is sunny and some days we have storms. But I am not going to let some "Scientist" with an Agenda explain to me what he only "studies" but does not KNOW. IF we desire to reduce Co2 in the atmosphere... Plant a tree, build a pond. YOU are responsible for the Earth you live on, but you CAN"T stop Co2 in the Atmosphere because YOU are the one putting it there 24 hours a day 365 days a year for 80+ years. PLANT A TREE!!

[@mikehenrickson3898]

i dont know anybody disputing Co2 leverls rising or there being an impact on climate.. boy they sure are leaving alot out here though. Co2 is not the the strongest nor the most abundant GHG. these levels have also fluctuated independantly of major climate transitions. there is a ton more data they chose not to include. There is a much bigger story that pbs isnt going to prompt you to. PBS is highly biased almost as bad as the BBC. they are politically motivated. i know just how utterly ridiculous that sounds too.

[@arifeannor9573]

@@mikehenrickson3898 Then you don't talk to those types of people. But out of curiosity, yes we know methane from cows but what else are you talking about, what's the bigger story they aren't saying?

[@sosaarts3779]

I love PBS, I love KCET, I love Nova and I miss forever Huell Howser. Thank you for these shows!

[@tristandamosso8087]

These are my new favorite documentaries, I watch them every night now. Thank you PBS Nova!

[@Emily-d5x5i]

Same!

[@Brian-yu5lb]

If scientists and people of authority were like Kirk Johnson then I truly believe we the people would listen and do everything we could to help out each other and the planet

[@JimReynolds-dd4fn]

It's so frustrating, trying to simply ask climate change deniers to listen to scientists like Kirk Johnson. Not to change minds, but to just absorb some of what they have to say. Unfortunately, these two words are like poison pills: Climate change. Those two words make them disappear faster than a prairie dog into their holes.

[@cadbracie]

Drill baby drill

[@systemicxdesign]

Today scientist or more like the high priest of the old. Very old. There words have no meaning anymore. They all follow an agenda. That's the truth

[@DrachenGothik666]

@@cadbracie Only if they're drilling for ice cores & lakebed/seabed cores. The oil drillers can eff right off.

[@scottharding7511]

One of the best science documentary shows I’ve ever seen. Great information presented in a way non-scientists can easily understand. Thank you.

[@Mike-x9h5f]

propaganda

[@4partmedia]

​@@Mike-x9h5fbot 😂

[@4partmedia]

​@@Mike-x9h5fur a bot

[@thedemolitionmuniciple]

@@Mike-x9h5f wow what an amazing conclusion. I would love to hear all of the evidence and peer-reviewed papers you have supporting your idea. you sound very human in your observations- is my sarcasm coming across yet?

[@reneesimerale]

​@@Mike-x9h5f😂😂propaganda🤣🤣 what an ignorant comment.

[@Nova2032-]

Great job Kirk Johnson. This is easy to follow, and very enjoyable to watch. And you are having so much fun collecting Mammoth Tusks. :-) You have such respect for the Elders up North. Thank you for all of your hard work, bringing this valuable information to us. Lets hope we all listen, and take care of this precious Earth.

[@75blackviking]

Agreed. I really like his narration and interview style. This is the proper Nova content I remember as a kid.

[@edcounts4062]

I think most people are trying to help. It's the big corporations and huge moneys that do the most damage with no remorse or care for fellow peoples or planet

[@edcounts4062]

I'm with yall tho . NOVA has always been a big deal for my little brother and I growing up. This show was way before its time before the internet and The Discovery Channel .

[@LuvBorderCollies]

@@edcounts4062 The #1 violator of the Earth is Communist China. It takes real effort to pump out more toxins into the air, water and ground, than the rest of the world combined.

[@zack_120]

One of the best documentaries, scientific and comprehensive 👍👍👍

[@einprazt]

Super agree!!! Amazing,,,

[@jakehood7463]

People living in those extreme environments are some of the hardiest humans there are. If they're struggling, how well will the rest of us fare? I had no idea how rare glacial periods are for planet Earth, just one more terrifying thing to learn to add to the pile.

[@DrSmooth2000]

Can you explain your logic? Not being mean; honestly curious. If glaciation is abnormal then ending glaciation is returning planet to more normal condition? That's how I see it. How do you see it?

[@mikeypiros6647]

SNOW FLAKE...

[@DrSmooth2000]

@@mikeypiros6647 you talking to me? kzbin.info/www/bejne/nHqpqKmJba6eqJI

[@calvin99991]

@@DrSmooth2000 Please stop asking logical questions. They have no tolerance for logic.

[@DrSmooth2000]

@@calvin99991I'm fairly still new to the 'discovery' of paleo-climate but there is a strange mental block. I'll give them days to respond before judge too harshly. But there is a wall that logic can't seem to get across, you're right. I call it "Ice Queen Effect" for now I am blaming Winter Witch of Narnia for enchanting everyone. Glaciers like inject a venom that makes people wait for them to grow to devour the prey-animal. I see no good reason for ice to exist on the surface anywhere. Am I missing something?

[@RKHageman]

It’s great to see Kirk Johnson, formerly of Denver Museum of Nature and Science. We Denverites miss him!

[@stevenf7752]

Very very cool documentary. Thank you for all your efforts

[@maggiefriedrichs777]

Thanks for putting the originally aired date. I wish all documentary videos would post originally aired date and whether shots are CGI or real. Thanks for sharing information.

[@AirborneAirAssault6565]

Kirk does a great job telling the story which needs to be heard!

[@wflan]

This is the coolest thing I've watched in a long time. Excellent, excellent work.

[@robbier3661]

a unique ,excellent documentary ,, a totally different aproach.. kudos PBS aka ....kirk {mcgyver}

[@EnvironmentalCoffeehouse]

I cannot stand the clueless people in this comment section that simply because they see PBS are going to be contrary to the information. Closed minded people who are not scientists or even science oriented. It's really sad.

[@bowittman]

One could accuse PBS of only showing one side on many subjects. Which would, of course, make PBS contrary to information they don't agree with. Are they clueless? I suspect you are closed minded to any information that doesn't line up exactly with what you've decided is the truth. But maybe you're a scientist or at least science oriented. Amusing.

[@marioivanperalta9420]

Are you a scientist?don't be mad at not trying to offend you.but there's no way that they can measure anything and assume.its their own opinion what's the point of going all those years in school.just to decived people.just like the big bam it just a theory.they have no idea.they have more faith than anybody.on earth to Believe that you can make something out of literally nothing.insted of the creator.

[@r.b.jr.86]

Ppl have experienced climate change all history. Mother Nature will always be in charge. We can’t influence the course, but we can cause it to speed up. Stop being one sided and observe from different angles.

[@markjaycox7524]

I listen to PBS / MPR radio whenever I'm driving. Maybe if PBS wasn't nearly always on one side (the Left side: social, economic, political, etc) people on both sides would give it more respect. Alas, without the open public debate, discussion, discourse, and the shouting down of differing opinions and interpretations, it's unlikely PBS will represent a centrist commonly-accepted media outlet... like it use to be.

[@4partmedia]

​@@bowittmanthat makes no sense. These PBS special's like Nova & FrontLine are among the most truest docu'series ever created. They do features on all sides of topics.

[@BrentElisens]

That car turds out of the tailpipe bit lol

[@cdred71]

That was funny.

[@DrachenGothik666]

It was a good representation of our carbon emissions, I think, especially when they started to add it up over the course of a year for billions of cars, & then for all of our emissions together. That monstrous mountain a mile high was all of our emissions in just _one year._ Gives you an idea of the scale of the problem.

[@mascadadelpantion8018]

So interesting and so beautiful to know. And see anything about the Arctic. And this is all that much more. The reason why it is a dire situation to try to help. The melting ice that is happening right now.

[@DrSmooth2000]

You don't like the hippo creatures?

[@4partmedia]

​@@DrSmooth2000you are a propaganda bot 😂

[@ozzyluvngirl]

This is one of my more favorite documentaries that I have seen in a long time and I do watch a lot of documentaries.❤

[@larryhanya]

I was there. The video can't really tell how surreal, dreamlike that place is. The color of water is so unreal.

[@visnuexe]

Well done! This was a complex topic that most could not adequately illustrate, yet your production has achieved this! Thank you!

[@fredmac1000]

What an Amazing Comprehensive Educational Wonderful,,,,,, Video,,, Thank you,,👏👏🌷🌷🙏🙏🥰🥰 Waaaooo,, about 2 Hrs video and NO ADS,,, Thank you again, whoever is Responsible,,🙏🙏💎💎

[@jonadavies]

Cannot change what has been ongoing for 4.5 billion years. All we can do as a species is what we have been doing for 300,000 years... Improvise, Adapt and Overcome.

[@NookoftheNorth]

That seems fairly defeatist. 🤔

[@jonadavies]

@@NookoftheNorth Hardly

[@NookoftheNorth]

I guess I wonder if human improvisation, adaptation, and the will to overcome excludes human innovation to preserve what might be saved. I apologize, but your original comment suggests that you're resigned to a world of turmoil that we are powerless to preserve. I disagree with that sentiment. If I'm mistaken, re: your original point of view, please forgive me. ✌️❤️

[@NookoftheNorth]

@@jonadavies Repair and Restore. #stewardship

[@christianhoffman7407]

You sure can't - for 4.5 billion years if carbon dioxide increases the planet gets warmer. So as we continue to burn fossil fuels and increase the CO2 in the atmosphere guess what is going to happen? So yes, we must adapt our means of energy production to account for this *fact* and improvise in the meantime to overcome the damage *we* have already caused.

[@rworrick8037]

This was an excellent production, and well worth 2 hours of my time. Thank you.

[@sarahb2623]

This is the most mesmerizing NOVA production ever! 🎉

[@HobbyOrganist]

Why would they be surrprised seeing remnants of a forest in the opening minute of the video? Admiral Peary wrote of finding remains of a petrified connifer forest in Northern Greenland around 1899, it was documented back then

[@DrachenGothik666]

Despite knowing it was there, it's still a visceral shock to actually _see_ it in person in a landscape that hasn't had trees for millions of years. You simply don't expect it.

[@onyxianna]

A scientist finding something, even if they knew it so well they could walk straight there, will always instantly turn into a visceral kid-in-a-candy store when they get to it

[@jessiec4128]

I so wish, I could be walking in that part of the world. I watch LOTS of Nature, Science. PBS Nova is my fav. Just being wheelchair bound, I can't be there.

[@cindyfitzgerald250]

Thank you very much for showing all this amazing places and parts of this earth!!!!!!!!!

[@yobibetnemelc3820]

I was glued from the start,amazing video....A BIG THANK YOU❤❤❤❤❤

[@SaraDarby-w9f]

When I see PBS I know it's important.

[@sherrihamann6268]

This is so amazing too watch, as a child I remember sitting on my mother's knee calling into make a pledge ,. I do remember I only wanted to support thee endouvers we all enjoyed and thee serien shots of nature tropical jungles animals i will never get to see personally. Making pledges over and over I would love to keep that tradit-ion as an adult

[@TheStormey]

OMG I absolutely love this lady, she is so awesome she carried her fossils back with her to show them off to the other guy! What an amazing and incredible place! We've only been here 300,000 years, which is a blink on this planet, and look what we've done to it!! I literally have tears in my eyes watching this!! Can you even possibly imagine what it would be like if we haven't done the damage that we have done since Humanity has been here? It's our job to take care of it!

[@1EYEDGTRGUY]

Well, if one wants to know anything about the Earths climate, past, present and future, this documentary will inform like no other. I will share this to all I know, because all NEED to know.

[@richtygart6855]

I watched the documentary about when the Vikings first came to Greenland 1500 years ago that there was far less ice, it was warmer with a lot more greenery.

[@Treviso100]

It’s from all the CO2 emissions from the factories the Vikings had. 😂

[@DrachenGothik666]

There was a brief warming period during that time, but the Vikings went to Iceland first, & it's a lot more temperate, though it still has glaciers. Greenland was never really warm, & it had as much glaciation as now. It just increased in the time between & it's all melting, now.

[@megaluckydog1212]

I wish PBS would do science for adults as well. Cut the drama, storyline, just the facts. No extremes, pretty unnatural faces, just real, smart people. Keep it real, the essence of the subject matter.

[@mollystrack7902]

This is amazing, the fossils found. When he starts talking about the amount of carbon cars can leave behind, he calls it car turds, had me 😂😂😂 it's a serious situation.

[@gailpegues6018]

I am kinda new to your channel but I want to say Happy Thanksgiving to you because you don't know me but I consider you a friend and I enjoy seeing your show every week. You bless my life in many ways, so know that you and Desi are loved and I will be here as long as I can. God bless you Susan, you are a friend to me, enjoy those precious babies, they do look very sweet 😊❤ have fun 👍

[@TornadoWatchers-i6m]

Thank you for closed captions!

[@fernjet]

wonderful ,scary ,thought provoking, I learned so much. thank you Kirk! you and all who helped make this did a great job. Maybe by all of us watching this, it might cause to "flip the switch" back???

[@scrkenny]

PBS and NOVA Fantastic. More of these.

[@PeaceChanel]

Thank You for All that you are doing for our Planet Earth.... Peace.. Shalom.. Salam.. Namaste 🙏🏻 😊 🌈 ✌ ☮ ❤

[@FakeNews_Ignored]

Amazingly informative video. Great work.

[@dubaspace]

Having been to nearly 80 countries….I can’t tell you what the second most beautiful place I’ve ever seen was….but the first for me is Svalbard

[@ottodetroit]

winter or summer ?

[@garthsnidpick4151]

where is "svalbard"??

[@Treviso100]

@@garthsnidpick4151according to Google it’s in Norway.

[@suziperret468]

Blessed house in the jungle! Love the round design and openness to nature.

[@dancooper8551]

Fascinating video! Not sure how I missed it before now.

[@coastsidescience]

Thanks for this! I teach middle and high school geology and this is perfect! - Scott Forbes

[@jasonhollister7497]

Ice HOUSE WORLD ....=....MUCH APPERICITED........👌👌!!

[@jasonhollister7497]

................"SELECTIVE" & "APPERIICITED"...."WOMAN"!!

[@TheStormey]

What an amazing island with an amazing amount of life that is just incredible, I'm at a loss for words for the spectacular beauty of it!!! God bless them for doing what's right for the fish, whales and all the other Critters that live there! That's the best Karma I can think of -:-) I live on the east coast of Florida near the Space Center and I can relate to the hurricanes, it's terrifying sometimes when they come through but other times it's party time so it's awesome that they just pick their feet up and go on, at least here we have FEMA I don't know what they have there but God bless them all! I wish I was younger so I could help in some way! The most awesome thing is they're teaching their young people take care for it as they do!

[@robinsteiner9961]

Wow. What a brilliant documentary! Really makes climate change tangible. My favorite part was the car poop. Beautiful.

[@AstonM6]

<a href="#" class="seekto" data-time="89">1:29</a>1 You didn't subtract the weight of the container.

[@cdred71]

Subtract 1 charcoal turd. LOL!!

[@bean3571]

I’m sure they zeroed it ahead of time, no one wants to see those things

[@DrachenGothik666]

They probably zeroed it, first, before weighing it. Plus, the container is really light, being plastic & thin-walled. It wouldn't make much difference to the total. The container might weigh 500 grams, if that.

[@bindawarren]

Thank you for such an in depth documentary. I appreciate your hard work.

[@stevenwinterhill3623]

I could hangout with this guy all day 😊 🇺🇸

[@katharinajohn5619]

FANTASTIC, LIKE A NEW PLANET!!

[@eddiebohi7]

Keep up the good work brother.!!!👏

[@JackBQuick79]

My inner nerd is beyond satisfied.

[@johnshields6852]

We have a rock called house rock in Weymouth, Mass. just south of Boston, another is called, great esker park, remnants of the ice sheet pulling back north to Canada.

[@danm9006]

Is it on public property?

[@spideywhiplash]

Like more Cow Bell...give me more Arial views of Volcanoes sprewing ash ...I could watch them till the cows come home.🗻

[@tonymcgowan6153]

Yes

[@ginakaraba4439]

Surprised they don't talk at all about how arctic dams are wreaking havoc and spewing warm water out in the winter. "People of a feather" is a good doc about this, detailing how eider ducks cannot survive with the new climate from hydroelectric dams

[@Ramona57-TX]

I love watching these episodes.

[@BestFitSquareChannel]

Astounding! Thank you. Best wishes.

[@FalconMidget]

Would be awesome if this was shot in 4k. Still amazing footage

[@musicwithten]

I would love to go to places like these..... But those tiny planes...NOPE..... Absolutely terrifying

[@getonlygotonly]

the planet will survive. humans. probably not

[@xezazase]

Carlin 👍

[@skullfacestudios7421]

Hopefully not.

[@angelsplace]

It would take a billion years just to regain a cyclops. Fukushima has 4 fully blown out spent fuel pools and china syndromes and just had another massive quake resulting in another meltdown and the entire Pacific is already caput.

[@paultexasusa]

funny

[@2hacksbuilding82]

Exactly. Like every apex species before us, we will be wiped off the face of the planet. I don't understand why people cannot accept this

[@lamanalvarez1553]

This is the most interesting documentary I’ve ever seen. Props PBS! Well made. I’m so excited!!!

[@ralphnabozny8494]

It was dripping when we walked in. out we go :)

[@dashore]

Amazing; as usual. Thanks so much

[@williammontgrain6544]

Since he forgot to mention it, the supervolcano by Mammoth Lakes in CA is called the Long Valley Caldera.

[@williammontgrain6544]

In addition to rain, exposed rock also absorbs CO2 through weathering, then gets recycled back into the earth through subduction. Of course, plants do most of the CO2 absorption, but rain and rock weathering are also worth mentioning.

[@Mark-zo4ys]

Fantastic documentary, explained easily for a person of little knowledge like myself. It assures me that climate change has occurred, is occurring, and will change again in the future.

[@saskshark]

Why don't they say anything about overpopulation or birth control, ??? Our planet has a huge problem with overpopulation.!!!! And that is the root cause for a lot of this global warming and things too....

[@frankblangeard8865]

The main take from this video is that a much warmer earth without ice at the poles is the norm. We are going back to the norm and need to adapt rather than try to fight it.

[@arifeannor9573]

It would be back to the norm if it were only volcanoes. No matter what we do, yes life will die off on earth. We are just fast forwarding to venus. Which I am all for. I mean maybe if other life on earth is lucky or unlucky depending on your views on life, volcanoes will still be quiet for a few good 10's of millions of years and plant life will grab the co2 back up, though a lot of the CNS land life will prob die off apart from a few and start a new carboniferous period. So probably got a few hundred years left of humans barring no new huge asteroids or multiple massive volcanoes continuously erupting for years.

[@joesmith1142]

The question i think is can the planet and its inhabitants adapt that quickly? In the past the change happened over thousands of years. We are doing it in two centuries. My takeaway from this film is that this is unprecedented, something the earths ecosystems and inhabitants may never have experienced before, or had to adapt to. Im sure life will survive but what percentage? 75%, 50%, 10%, less than 10%? Thats the scary part. Even scarier will be what will civilized humans do to each other to be one of the survivors? Thats what keeps me awake at night. I'd prefer to fight to prevent it from happening than to give up meekly and putting that burden on my children and their children.

[@newfreethink]

​@@joesmith1142what is your solution that won't kill us before we kill ourselves? Totalitarianism isn't the answer

[@one8088]

Too much words

[@elliotw5918]

As a scientist, something that worries me, the only thing really, is CO2 concentrations. If we raise CO2 to a certain level(nobody knows what that level is) it likely could trigger a catastrophic runaway greenhouse effect. We can't breathe past 1200ppm CO2. Current level is 450. Ten years ago it was 350. Food fer thought y'all.

[@JohnShields-xx1yk]

That model is awesome, I can't stop staring at it, that's insane and beautiful.

[@williamfabuien1125]

Amazing job you have!

[@stewpacalypse7104]

Your voice-over narration reminds me of a guy who back in the 90s was radio DJ in Cicely, Alaska. 😉

[@Treviso100]

What I got from this is that the natural changes of the earth have been far more extreme than the man-made ones. And that the changes in the earth’s atmosphere are natural.

[@jamesfennen4683]

except when mankind evolved & took control with machinery & consumption. the resulting climate change is a cascading catastrophe.

[@systemicxdesign]

Is anybody aware that there's actual weather modification going on all the time? They use it in Dubai all the time. They're open about it China's open about it. They all use it all the time

[@Treviso100]

@@jamesfennen4683 although far less severe than the natural temperature changes we’ve seen over time.

[@thyssaliki]

So then we don't have to change anything about the way we do things? 🎉

[@janeanf123]

@@systemicxdesignand look what happened!

[@diannadima7082]

We all need to do our part to protect our planet!!! Please America, at least let us do our part!!!

[@shadetreader]

As long as evil empires like the US exist, they will never allow us to care for our planet.

[@Mike-x9h5f]

where where where where

[@cdred71]

I get your point but how do you propose we do that? Electric cars? Solar panels? No one sees the potential for abuse by the government and corporations in the name of climate protection. If the government wants us to go solar, then solar panels should be free and part of electrical service just like the pole outside. But we know that will never happen. We are told to do our part to save the environment, but then the electric companies put a 40k price tag on solar panels. Get an electric car that you cannot charge everywhere, has very limited range and also doubling your home electric cost at the same time because electricity is NOT low cost or free. Where and how is this electricity going to be generated to power this new all electric society? Don't sound like the government OR electric service providers care too much about saving the same environment that they are trying to scare us into saving. Just saying...

[@DrachenGothik666]

@@cdred71 It's the corporations that are the issue, not governments, though the US government is more shortsighted than most. Electric vehicles are running up to having 200 to 300 mile ranges, now. That's not all that limited. That's as much as a regular tank of gas for a small car.

[@brookebradford8009]

<a href="#" class="seekto" data-time="467">7:47</a> There is an aeronautic principle known by pilots of all sorts as “ground effect”… when you are within roughly a half wingspan of the surface, the speed at which you are able to maintain lift is dramatically reduced. You can use it as a region to reduce your airspeed before touching down in a soft field landing, but if you climb out of it prematurely when taking off, you will stall into a “nose dive”. Like anything else, it can be your best friend, or your worse enemy…

[@TheOtherSteel]

Early in the video, area in both Greenland and Antarctica were mentioned as having been much warmer in the past, at 50 million an 83 million years in the past. The phrasing used made it appear that those past higher temperature land areas were on the same latitude and longitude coordinates on the globe as they are today. Except continental drift over those time frames moves those land masses elsewhere. At 83 million years ago, Antarctica was still a part of Pangea, and was not yet over the South Pole. Those factors make it easy to understand why there is so much fossilized life that cannot flourish at the temperature seen in today's arctic zones.

[@desertrose7318]

❤ive been watching nova since the 80s 😅 and probably before just dont remember (my grandmother used to watch it 😊)

[@kateelainew]

I LOVED this Nova! I’ve been talking about it to anyone who will listen. So well made and fascinating!

[@Ifelta]

Where was the position of the geomagnetic poles back when the trees were growing?

[@philrabe910]

<a href="#" class="seekto" data-time="3420">57:00</a> Gosh! Hydraulic mining is what destroyed much of California's gold country. It's all grown over now, but the scars are still there.

[@allythearts5439]

Them ice burgs sure are pretty lookin 🤩🤍

[@liamalepta8003]

Everything in this great documentary points to .. polarity shift. Where the earth had a different North and south position. Like for example, what is west now, was north what is south now used to be east.

[@Ron-oh8lj]

This is so fun. Thank you. Amazing,!!!!!

[@Orang315]

GOD I wish I could go rock collecting in Antarctica ! 😺🪨🪨🪨

[@theonlyjimjones]

<a href="#" class="seekto" data-time="3575">59:35</a> Don't take my candy. Lol.

[@pi5549]

The sound-track for this is lush. 'grats for the effort.

[@ntmituniverse5850]

50 million year old trees!

[@reneesimerale]

Amazing❤❤❤ Truly🥰

[@sandtowalk]

Is it any way possible to mediate or balance our Climatology?

[@Mike-x9h5f]

stop being so pompous as to think we can change it

[@DrachenGothik666]

Reduce or eliminate fossil fuel use. Shift _all_ transport to electric. Find alternative sources of energy that don't poison the planet. Work on carbon-capture technology. Be prepared to suffer for the next couple hundred years as the planet slowly shifts back.

[@DrachenGothik666]

@@Mike-x9h5f We're changing it, & not for the better. Don't be so presumptuous as to believe we can't possibly cause something like this. We're the most invasive species on the planet, & there are more of us every day, poisoning this place. Climate Change is real & no amount of denying it will make it less true.

[@GoodToGlow]

INCREDIBLE

[@richardjackson5277]

What about the Malenkovich Cycles?

[@richardjackson5277]

Never mind….I needed to listen longer.

[@Yamparunner]

there’s aNick Zentner lecture that helps explain the Malenkovich cycles

[@GerryMantha]

A bit outdated, but even after 8 years after this doc was made it's still relevant. More so.

[@sergeihakobian7686]

Milankovitch cycles is what its called, for the changes between ice house and hot house.

[@DrachenGothik666]

I was surprised the documentary didn't name them. I was expecting to hear Milankovitch Cycles at some point & never did.

[@VLove-CFII]

I’d panic as soon as I saw the plane leave 🥶

[@RobertojavierSilvaharth-ub3pz]

I was hooked on ice from pole to pole, but not a peep about it. oh well, it was fun while it lasted.

[@annegeeraerts1669]

Fascinating

[@airwaycherry4310]

i also love NOVA

[@Orang315]

Even if the poles were once tropical, the ice age still changed the rocks there by heavy ice pressure to make them metamorphic 🪨 and different

[@leftear99]

... No.