Polar Extremes: Ice Worlds | Full Documentary | NOVA

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

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Күн бұрын

Paleontologist Kirk Johnson explores the dynamic history-and future-of ice at the poles. (Aired February 5, 2020)
Official Website: to.pbs.org/3EUn0KC | #novapbs
In this two-hour special, renowned paleontologist Kirk Johnson takes us on an epic adventure through time at the polar extremes of our planet. Following a trail of strange fossils found in all the wrong places-beech trees in Antarctica, hippo-like mammals in the Arctic-Johnson uncovers the bizarre history of the poles, from miles-high ice sheets to warm polar forests teeming with life. What caused such dramatic changes at the ends of the Earth? And what can the past reveal about our planet’s climate today-and in the future?
Chapters
00:00:00 Introduction
00:05:49 Hunting for Fossils on Islands near the North and South Poles
00:22:52 Fossil of New Dinosaur Species Found in Patagonia
00:29:04 Was Death Valley Always the Hottest Place on the Planet?
00:37:32 How Have Carbon Dioxide Levels Changed on Earth Over Time?
00:49:18 How Do Ice Sheets Form in Antarctica
00:56:47 How Did Life Persist Through the Ice Age?
01:11:29 Impacts of Rising Temperatures on Ice Cycles of the Planet
01:31:30 What Was the Warm World Like Before the Ice Age
01:43:04 This Cave Has Been Frozen for 100,000 Years
01:50:30 Conclusion
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#paleontology #paleontologist #antarctica #antarctic #northpole #southpole #iceage #arctic #dinosaur #dinosaurs #deathvalley #deathvalleynationalpark
Where is the north pole, north pole temperature, ellesmere island, is antarctica the south pole, new dinosaur discovered, new dinosaur documentary, patagonia chile, what is the carbon cycle, death valley weather, death valley temperatures, snowball earth, ice sheet, drake passage

Пікірлер: 633

@CoolHand273 4 ай бұрын

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.

@SubvertTheState 10 ай бұрын

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 10 ай бұрын

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 9 ай бұрын

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 9 ай бұрын

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 9 ай бұрын

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 9 ай бұрын

@@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?

@Brian-yu5lb 10 ай бұрын

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 8 ай бұрын

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 4 ай бұрын

Drill baby drill

@systemicxdesign 3 ай бұрын

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 Ай бұрын

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

@maggiefriedrichs777 4 ай бұрын

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.

@quinn1222 10 ай бұрын

Thank you for closed captions! Much appreciated

@RKHageman 3 ай бұрын

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

@tristandamosso8087 6 ай бұрын

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

@user-ml1uw2rl6g 2 ай бұрын

Same!

@Nova2032- 9 ай бұрын

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 9 ай бұрын

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

@edcounts4062 3 ай бұрын

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 3 ай бұрын

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 .

@sosaarts3779 5 ай бұрын

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

@getonlygotonly 9 ай бұрын

the planet will survive. humans. probably not

@xezazase 4 ай бұрын

Carlin 👍

@skullfacestudios7421 4 ай бұрын

Hopefully not.

@angelsplace 4 ай бұрын

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.

@paultexasusa1366 2 ай бұрын

funny

@2hacksbuilding82 Ай бұрын

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

@jakenguyen7463 10 ай бұрын

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 10 ай бұрын

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 10 ай бұрын

SNOW FLAKE...

@DrSmooth2000 10 ай бұрын

@@mikeypiros6647 you talking to me? kzfaq.info/get/bejne/nK92qtmEna_PomQ.html

@calvin99991 10 ай бұрын

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

@DrSmooth2000 10 ай бұрын

@@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?

@zack_120 6 ай бұрын

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

@stevenf7752 9 ай бұрын

Very very cool documentary. Thank you for all your efforts

@visnuexe 8 ай бұрын

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

@scottharding7511 7 ай бұрын

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

@user-mb9zx9lg7p 5 ай бұрын

propaganda

@4partmedia 4 ай бұрын

@@user-mb9zx9lg7pbot 😂

@4partmedia 4 ай бұрын

@@user-mb9zx9lg7pur a bot

@thedemolitionmuniciple 4 ай бұрын

@@user-mb9zx9lg7p 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?

@HobbyOrganist 10 ай бұрын

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 Ай бұрын

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 Ай бұрын

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

@1EYEDGTRGUY 3 күн бұрын

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.

@BrentElisens 5 ай бұрын

That car turds out of the tailpipe bit lol

@cdred71 5 ай бұрын

That was funny.

@DrachenGothik666 Ай бұрын

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.

@robbier3661 9 ай бұрын

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

@TheStormey 8 ай бұрын

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!

@mascadadelpantion8018 10 ай бұрын

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 10 ай бұрын

You don't like the hippo creatures?

@4partmedia 4 ай бұрын

@@DrSmooth2000you are a propaganda bot 😂

@richtygart6855 9 ай бұрын

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 4 ай бұрын

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

@DrachenGothik666 Ай бұрын

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.

@suziperret468 4 ай бұрын

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

@dancooper8551 5 ай бұрын

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

@scrkenny 4 ай бұрын

PBS and NOVA Fantastic. More of these.

@katharinajohn5619 9 ай бұрын

FANTASTIC, LIKE A NEW PLANET!!

@rworrick8037 8 ай бұрын

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

@coastsidescience Ай бұрын

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

@ralphnabozny8494 5 ай бұрын

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

@EnvironmentalCoffeehouse 9 ай бұрын

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 9 ай бұрын

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 5 ай бұрын

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.

@jameswest7945 5 ай бұрын

Take your Covid vaccines 🥔

@r.b.jr.86 5 ай бұрын

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 5 ай бұрын

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.

@fernjet 8 ай бұрын

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???

@PeaceChanel 4 ай бұрын

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

@bindawarren 10 күн бұрын

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

@JohnShields-xx1yk Ай бұрын

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

@robinsteiner9961 Ай бұрын

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

@TheOtherSteel 11 күн бұрын

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.

@liamalepta8003 2 күн бұрын

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.

@wflan 6 ай бұрын

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

@TheStormey 8 ай бұрын

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!

@dubaspace 10 ай бұрын

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 9 ай бұрын

winter or summer ?

@garthsnidpick4151 5 ай бұрын

where is "svalbard"??

@Treviso100 4 ай бұрын

@@garthsnidpick4151according to Google it’s in Norway.

@sarahb2623 8 ай бұрын

This is the most mesmerizing NOVA production ever! 🎉

@VLove-CFII 5 ай бұрын

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

@ozzyluvngirl 8 ай бұрын

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

@pi5549 9 күн бұрын

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

@mollystrack7902 9 ай бұрын

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.

@sergeihakobian7686 3 ай бұрын

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

@DrachenGothik666 Ай бұрын

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

@brookebradford8009 8 ай бұрын

7:47 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…

@johnshields6852 9 ай бұрын

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 5 ай бұрын

Is it on public property?

@annegeeraerts1669 9 ай бұрын

Fascinating

@stupidyutube9 9 ай бұрын

This guy kicketh ass

@GoodToGlow 8 ай бұрын

INCREDIBLE

@jcmusc 9 ай бұрын

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

@scottrich3210 8 ай бұрын

Beautiful stars!

@Treviso100 4 ай бұрын

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 3 ай бұрын

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

@systemicxdesign 3 ай бұрын

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 3 ай бұрын

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

@thyssaliki 3 ай бұрын

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

@janeanf123 2 ай бұрын

@@systemicxdesignand look what happened!

@kateelainew 4 ай бұрын

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

@Ron-oh8lj 5 ай бұрын

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

@philrabe910 Ай бұрын

57:00 Gosh! Hydraulic mining is what destroyed much of California's gold country. It's all grown over now, but the scars are still there.

@theprojectsvet 4 ай бұрын

very fascinating

@fredmac1000 8 ай бұрын

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

@enigmaticunknown2862 5 ай бұрын

Well it seems to me the Earth has been here and done that. It might get lucky and be able to get rid of the human virus in the next hot period. Maybe something even more spectacular than a beast with 8 foot thigh bone will be next. Whatever it is hopefully it will live as a part of nature.

@Legnerps 4 ай бұрын

To answer your final question ... at the end of the documentary... No... sadly we are not.

@lamanalvarez1553 3 ай бұрын

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

@chuckfrezzel348 3 ай бұрын

We are just a spec in time.

@moonlitme 4 ай бұрын

Chilling.

@benjaminholman8416 8 ай бұрын

What an amazing job to have. I'd love to pick bones out of the ground in Alaska!

@daniellucas6831 7 ай бұрын

They're in Northern Canada 800 miles from the North Pole. Alaska is Eastern US.

@DrachenGothik666 Ай бұрын

The bone-picking expedition where they were pulling Mammoth bones out of the permafrost was in Northern Alberta, which is in Canada.

@Orang315 9 ай бұрын

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

@mistahtom 22 күн бұрын

1:31:08 Removing that amount of mass from inside the earth for the century and a half we’ve been doing this affects the planet’s orbital angular momentum and that’s going to affect space-time in ways we can only imagine ⏰

@DarthLink1986 5 күн бұрын

How much more UV light does the arctic receive?

@bruintoo 7 ай бұрын

1:34:37 Bye Florida!!!

@teressaallen7466 5 ай бұрын

It's not only the industrial problem. Take a look into the ice shelf of Antartica! You'll be surprised when you find out what is there.

@gailpegues6018 8 ай бұрын

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 👍

@JackBQuick79 9 ай бұрын

My inner nerd is beyond satisfied.

@davidkelter8379 9 ай бұрын

Nicely done.

@diannadima7082 9 ай бұрын

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

@shadetreader 8 ай бұрын

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

@user-mb9zx9lg7p 5 ай бұрын

where where where where

@cdred71 5 ай бұрын

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 Ай бұрын

@@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.

@FakeNews_Ignored 5 ай бұрын

Amazingly informative video. Great work.

@larrybuckner8619 9 ай бұрын

I wonder what people of faith think when they see these types of documentaries. How do they square these facts with what they believe.

@chrisdavenport3621 8 ай бұрын

For me I think the book of genesis was written with intention to give positive beliefs and answers to questions people might have had before it was written. If God was all powerful then writing the heavens and earth was created by him would be the best way to give a positive and holy possibility for creation. I once asked my longtime grandmother about God and dinosaurs and she said maybe he created them first for people looking for reasons to not believe in him… was a quick answer but better than not acknowledging the fact that they were once here and not just 6000 years ago.

@robinhood20253 5 ай бұрын

Many of them ignore them.

@DrachenGothik666 Ай бұрын

If they watch this at all to begin with, they likely simply deny it's possible 'cuz gawd & "Mah holee buuk!"

@johnmcque4813 3 ай бұрын

We should catch and introduce polar bears to the south pole...

@DrachenGothik666 Ай бұрын

Polar bears need open sea ice to travel on while they hunt. Most of the ice in Antarctica is landlocked. Polar bears would do worse there than they're currently doing in the Arctic. Also, food is only available in a very few locations. They'd probably starve or wipe out entire populations of penguins. There are seals in the Antarctic, but they're mostly on islands close to the continent.

@davidschulz3396 4 ай бұрын

It's already been proven that the extreme ice shift was from the change in the magnetic poles and was almost instantaneous, the plant matter found in the frozen mammoths stomach and the magnetic striations in the rocks prove this. So although a lot of this documentary is correct they are also extremely way off because they don't explain the effect of the magnetic poles and solar flares.

@disc64 2 ай бұрын

It's proven? Excellent. Please point us to where the proof is explained for the lay man. Or even just the proof.

@davidschulz3396 2 ай бұрын

@@disc64 Glaciers in a rain-forest, they exist, look it up, only one possible way for that to happen.

@disc64 2 ай бұрын

@@davidschulz3396 OK lookeded up glaciers in a rain-forest. 1st search hit is Franz Josef Glacier followed by Fox Glacier, New Zealand then Glacier National Park Rainforest. Which one should I be exploring more?

@disc64 2 ай бұрын

@@davidschulz3396 search is next to useless nowadays. I did a search on glaciers in a rain forest and it's bringing up things like glacier national park. Usually if I search something between quotes that works. Do you have something I can search for that way that will get me to what you me to see?

@richardnailhistorical3445 8 ай бұрын

"most amazing NOVA production ever"; "great job Kirk" He's a Paleontologist for christsake, not a hero, it's his job to look at ancient things, I expect him to do his job just like he expects me to do mine. Over all a decent job of narration, not great, but acceptable for learning something. I study human nature, and today billionaires run this world, they influence everything masses do and will do in future. Wealthy work on theory to 'live comfortably an abundant supply of poor is necessary', therein we have 8 billion humans in less than 50 years. Nothing is going to stop what is already in the pipeline. Tipping points we passed them decades ago, scientists are not including 'delay times' in their models. Bright side for current generation: You are witnessing end of human civilization so take a lot of notes!

@AstonM6 5 ай бұрын

1:291 You didn't subtract the weight of the container.

@cdred71 5 ай бұрын

Subtract 1 charcoal turd. LOL!!

@bean3571 5 ай бұрын

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

@DrachenGothik666 Ай бұрын

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.

@JohnShields-xx1yk Ай бұрын

We think of dinosaurs and the meteor that killed them, but they ruled for 100's of millions of years prior to that extinction event, human beings would have to survive for a long time to match their prowess on the earth. ?

@zimmy1958 10 ай бұрын

Thanks

@stevenwinterhill3623 6 ай бұрын

I could hangout with this guy all day 😊 🇺🇸

@frankblangeard8865 9 ай бұрын

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 9 ай бұрын

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 8 ай бұрын

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 7 ай бұрын

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

@one8088 5 ай бұрын

Too much words

@elliotw5918 5 ай бұрын

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.

@allythearts5439 9 ай бұрын

Them ice burgs sure are pretty lookin 🤩🤍

@spideywhiplash 10 ай бұрын

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

@tonymcgowan6153 8 ай бұрын

Yes

@patitas010806 6 ай бұрын

Your comment can be shortened as "whatever". Obviously you did not watched or comprehended OUR PART in climate, although is was very simple and clear for all to learn. If we are part of the acceleration, why can't we be part of putting a break in this? That is where the minds of scientific knowledge are not saying "whatever", like you.

@DrachenGothik666 Ай бұрын

In order for your comment to be attached to & reach the person you're replying to, you need to click on the word "reply" under their comment. Otherwise, your comment just appears randomly in the comments section & nowhere near the person you're responding to.

@FriendlyMarmot 5 ай бұрын

59:53 Scrat? Is that you?

@harlandfazardo799 6 ай бұрын

Could it be that the earths polls have moved over the hundreds of millions of years?

@leftear99 5 ай бұрын

They have, but we have extremely reliable measurements of how far. We are confident that their positions are not responsible for the different vegetation

@DrachenGothik666 Ай бұрын

*Poles. The word you're looking for is "poles". Polls are surveys taken of large groups of people. #boneappletea

@jessepollard7132 5 ай бұрын

ignoring tectonic plate movement entirely. The area he was in was much farther south than it is now.

@DrachenGothik666 Ай бұрын

They didn't ignore it. If you were paying attention, you'd have seen that they dismissed it as the reason because _they knew where the various continents were_ at various times. The land mass that became Antarctica was still close to the South pole when it had a forest with dinosaurs. And, the other area wasn't all that far South, either--it was still pretty close to the Arctic Circle. Close enough to potentially be cold if the planet wasn't so much warmer.

@airwaycherry4310 Ай бұрын

i also love NOVA

@jonadavies 9 ай бұрын

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.

@nookdiddy 9 ай бұрын

That seems fairly defeatist. 🤔

@jonadavies 9 ай бұрын

@@nookdiddy Hardly

@nookdiddy 9 ай бұрын

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. ✌️❤️

@nookdiddy 9 ай бұрын

@@jonadavies Repair and Restore. #stewardship

@christianhoffman7407 9 ай бұрын

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.

@bellyarty 13 күн бұрын

Wear natural fibres and use white vinegar instead of fabric conditioner.

@Orang315 9 ай бұрын

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 5 ай бұрын

... No.

@jedrek1521 9 ай бұрын

1:29:49 odorless? Someone has never opened up a club soda bottle close to their nose 😅

@DrachenGothik666 Ай бұрын

You're smelling the club soda, not the CO2. It's carrying the scent on the gas as it comes out.

@jedrek1521 Ай бұрын

@DrachenGothik666 ok good hypothesis, now open a CO2 canister and see if the smell is the same.

@ginakaraba4439 7 ай бұрын

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

@mujkocka 6 күн бұрын

Why are we allowing these permafrost to be unfrozen? It 🤢 means

@InuitWomen_ 8 ай бұрын

👍

@Kunfucious577 9 ай бұрын

We should let earth warm up. It seems like nature thrives in warmer climates.

@danr8502 2 ай бұрын

Over 100000 or 1000000 years not 150!

@DrachenGothik666 Ай бұрын

That would be fine over 100s of thousands of years, but it's currently warming up too quickly for most animals & plants to adapt to the new conditions. We're going to have a mass extinction before this is over.

@sssarzzz 9 ай бұрын

1:28:10 I hate when anyone, regardless of who it is, whether I agree or not.....do charts where they don't start at 0 ...such as 0 ppm for co2 but instead start at 150 ppm....then show the end...where it appears the co2 has more then doubled since the last 100 years or so....when in fact the chart really says it went up alot ... but not double. I don't think it was done to deceive here, but charts doing this stuff is how liars and con men can use an accurate chart to trick people into things that are not true...

@psycotria 9 ай бұрын

I think it WAS done to deceive and confuse people who can't or won't spend the many hours to research everything for themselves. Meanwhile, old data is cherry-picked, hidden, discarded and manipulated into false data being presented as history today. Electronic databases have enabled "1984" on steroids.

@DrachenGothik666 Ай бұрын

It goes back to 500 million years, what more do ya want? To go back to 0 would make for a chart too long to show on the screen. 500 million years is already half a billion, which already covers most of the time we had life on this ball of rock. Your "complaint" is nonsensical.