The return of an ice age has nothing to do with the earth being further from the sun - its the result of the Milankovitch cycle - a combination of orbit eccentricity, axial tilt & axial precession.
Milankovitch cycles have been occurring since the Earth got it's tilt. That tilt has been hypothesized to have resulted in a planet-sized body - Theia ~ en.wikipedia.org/wiki/Theia_(planet) - colliding with the Planet & (perhaps) excavating the rocky material that eventually formed the Moon ... That is supposed to have happened more than four BILLION years ago, and yet there is no evidence (that I know of) of any of Earth's many Ice Ages and glacial periods that are confirmed to have been DIRECTLY caused by the Milankovitch cycles that must surely have existed - with varied period duration's - SINCE the Planet's tilt occurred ...
There are actually 2 chambers fueling Yelllowstone. The lower one dwarves the upper one, and the upper chamber still holds enough magma to fill the Grand Canyon...11 times over
Yeah, those Italy volcanoes are just "simmering" at the moment. Iceland is VERY concerning also, and Ruang volcano that JUST erupted (April 17th) is also another highly eruptive Indonesian volcano. Although there were tsunami alerts, thankfully there hasn't been anything significant thus far.
When I visited California I went to the history museum and I talked with a gentleman that I can’t remember his name but we talked about this specifically and it was very interesting on the information he had to share.
@@JackSmith-kp2vs You're a decent guy, Jack. Social media is so ripe with moments to willfully visit humiliation on others that just the glint of authenticity in reaffirming someone's sincerity becomes something of note, to remark upon what should be unremarkable. Fortunately, the effect of small but pure gestures like yours is logarithmic; emotional generosity has the power of a waveform, each example radiating out from its splash of origin in "ripple-it-forward" concentric victories over the long project to figure ourselves out. If life in our gauntlet of an era allowed, I imagine the spirit of such gestures continuing as long as forgiving, still waters allowed, all the while humanizing the horizons of experience. I hope I didn't patronize either you or Nathan, but I have observed or endured too many episodes of pointless disparagement in social media to let someone's intentional grace go unnoticed. I know the fragrance of humanity when it drifts by.
@@prototropo You should look more into Jesus. Most amazing story right there, usually getting dusty on people's shelves. Talk about opening up spiritually, once you open those eyes, your new world is eternity ahead
You think our civilization is 8,000 years old? Yeah forget Gobekli Tepe. I guess it sat here for 4,000 years before we arrived. Gobekli Tepe is 12,000 years old and contains megalithic architecture, which means it was not our first structure. Way before that, we were living in huts and caves.
I love how this type of documentary completely disregards the fact that Australian Aboriginal peoples survived the ice age. That culture still survives today.
The narrator asserts that Earth's changing distance from the sun is what caused the ice ages. This is doubtful at best. Because Earth's orbit is an ellipse and not a circle, its distance from the sun normally varies from 91 million miles to 94 million miles over the course of each year. And we don't have an ice age every year.
@@redskinjim Earth's rotational axis is tilted to 23.5° relative to its orbital plane. However, its axis wobbles like a spinning toy top that is slowing down. Over time, therefore, the north pole points to different areas of the sky, describing a circle. This is known as axial precession. It takes 26,000 years for a complete circle. It has nothing to do with ice ages.
If the ice age was caused by the Earth moving away from the sun by a tiny bit, why did the ice age go away....did we come back to the sun...? There is one major catastrophe not mentioned that is happening right now...US..!! The woke generation, the Gimme Generation, People do what they want and care nothing for anyone else, only wanting what THEY want. SOME people, THOSE sort, think they are so proud to die they'll take everyone with them. Perhaps we could use another ice age right now...we have had so many in the past. I DO wish we still had the Wooly Mammoth, though.....a fine animal, that..... Nyms.
The Ice Age Cycle is caused by a combination of changes in the Earth's Tilt, shape of orbit, and Precession, together known as the Milankovitch Cycles. The Ice Age Cycle is caused by a COMBINATION of these three orbital cycles.
I never did particularly like the hypothesis that the disappearance of the megamammals was caused by humans hunting them to extinction. How could a few hundred nomadic hunter-gatherer bands do that, especially since they likely didn't hunt the larger animals all that often? The hypothesis that a large meteor impact event caused the extinction of the megamammals seems much more plausible.
It can happen. If there is a large species which have had no predators for a very long time, they can be very slow at reproducing. A new predator with increasing numbers could reduce that population to the point they become unsustainable.
I don't think blame is the correct word. However, they have found pit trap remains that we're used by humans to trap mammoths. The pit trap was an evolution to cliff herd killing, i.e. stampeding herds of the edge of a cliff.
@@OGSomeOne That's true. But how often did any particular band of humans hunt large animals? It would have been a major endeavor and any particular group would not have done it all that often. In fact, it might have taken a combined group to dig a pit trap, camouflage it, herd the animals into it, and process the kills. Furthermore, how often would a particular herd of mammoths, bison, etc. have been subjected to a massive hunt? I doubt that it would have been enough to effect the genetic viability of a particular herd, much less the entire population of a species.
We'll just resort to atomic energy on an increasing scale to power UV light, households and, hey, if it all goes pear shaped we won't need street lights anymore.
Super Volcanoes like Yellowstone, Lake Toba, Siberian Traps, Laguna del Maule, Cerro Galan, Aira Caldera, The Phlegraean Fields/Campi Flegrei outside Naples, Italy, etc.
@@jaysinlsavage50 Mt. Shasta is not a super volcano, but the Long Valley Caldera (California) is. It is possible to create more death & destruction than Yellowstone.
You're joking, right?? The volcano is one of Indonesia's volcanoes (Sumatra), and the eruption occurred 74,000 YEARS AGO, so why would it matter how it looks now??? Did you fail grade school?? 😜 It's a good documentary, try watching it. lol
@@heatherstewart9300 The doc is about Toba yet as was said nothing was shown of it. Yet other calderas were shown and compared to Toba without showing Toba. The caldera is huge and still active with large deposits of ash very visible even after 74000 years. This doc isn't the only one mentioning Toba by far.
@@howsitgrowin 2 problems with your fairy story: 1. Noah never existed. 2. There has been no Global floods since man has existed on this planet, the Chinese and Bronze age Europeans would surely have noticed such an event. Now I could add in the fact that according to your little fantasy story Noah's "family" "repopulated" the whole planet inside their lifetimes which, of course, also never happened but hey if you want to believe in utter bollocks knock yourself out, you do you champ.
There are a few things wrong with this documentary. One, Tunguska was an airburst, not an actual impact. The proof is that at the epicenter, the trees were left standing, as opposed to being incinerated. Two theories not even mentioned in the documentary on the onset of the Younger Dryas deserve consideration. The most plausible theory was a massive solar storm, also known as a micronova, occurred when the sun ejected its topmost layer into the solar system, possibly by pressure building as the topmost layer of the sun started to cool and contract. The effects would have been diverse and catastrophic... instantaneously on the side facing the sun there would have been incineration, as the atmosphere would have been insufficient to shield the earth from the micronova.and the iron clovis layer could be ejecta from the microburst from the sun. On the opposite side, there was an instantaneous drop in temperature drop, which is why you find mammoths with undigested food in their stomach and even flowers in their mouths... they hadn't even time to spit out their food before they were instantaneously flash frozen to several hundred degrees below zero. These are relatively recent discoveries, and explain a lot. So the crater of a massive impact does exist, but it doesn't explain the instantaneous melting of all the ice on earth which brought on a massive flood that is recounted in every culture's oral and traditional histories, including 'Noah's flood" which was recorded worldwide in ancient texts including of cour\se the Bible. Prior to this, the sea levels were up to 400 feet lower than they are today, and an instantanious liquefication of all the ice on earth would have wiped out most of civilization, in addition to creating massive tsunamis that would have wiped out most of civilization living on the then coast which is marked by the continental shelf surrounding the continents. A third possibility is a magnetic pole reversal, which would have reversed the rotation of the Earth and slowed the rotation of the inner nickel-iron core while the surface continued to rotate- air, water, and the associated debris washing across the surface as the 1,000 mph rotation slowed then reversed. A reversal does not mean the earth was flipped upside down, only the magnetic polarity was reversed. Only such a massive shift could cause native Peruvians in the Andes have legends of 'blue-green water' overtopping the Andes. For more information, the Hiawatha crater has its own video I watched half a year back (ua-cam.com/video/wDszV2XvybU/v-deo.html), the solar storm theory is embraced by the UA-cam channel The Why Files and by the Diebold Project, which predicts another microburst based on extensive calculations could happen as early as 2046. No matter which bears out to be the culprit, it is more likely it may be a combination of the three, either in succession or almost simultaneously.
A macronova caused the younger dryas as the best theory? You might have missed the mass of evidence for the impact/airburst theory. Microsphereules, landacites and other impact nanodiamonds.
You've assembled several interesting things into one paragraph, Dave. Some, however, don't fit very well. For example, Earth's magnetic pole has shifted numerous times; we may have one developing in the near term. Magnetic field patterns locked into the Atlantic seabed reveal how often this has happened. Earth's rotation isn't affected, but the magnetosphere probably will be. The cataclysm you described, however, isn't magnetic pole shifting, but a different fringe notion where the geologic layers of the planet move catastrophically.
@@misterlyle. Recently I found out both Dave as well as myself are SOs (Suspicious Observers). I am in the process of reading Ben Davidson’s 4 books. The most recent book is Earth Disaster Cycle, The Cycle resets soon. I watch Suspicious Observers daily (sometimes twice) & read the articles suggested by Ben. Mini-excursions happen -6k years & -12k years there is a “geomagnetic excursion” which is a rapid flip of Earth’s magnetic field, which the North & South magnetic poles move. There is a major reduction in the magnetic field protection of Earth. Currently the geomagnetic excursion has been moving since 1859 Carrington Event. The North is moving toward Russia & the South toward Indonesia. There is a large Ozone hole near Antarctica. - 10 years was estimated the Earth’s magnetic field has been diminished by 25 to 30%. The new % s are probably higher now. SWARM is closed mouth about the changes. The poles will meet near between India & Indonesia. The opposite of the meeting place is near Peru. These excursions can produce major extinctions of species as well as reductions in populations of species that do not go extinct. More radiation is entering our atmosphere & surface, because a decrease in our ozone layer. Impact craters are part of the cycle. Increase & severity in volcanic event’s as well. The is evidence that stars been recurring nova because of a “magnetic kick” or material being dumped on the star. One example is Betelgeuse which dimmed then flicked. The magnetic current sheet from the Milky Way is producing changes in our solar system. The Sun & all of our planets are being affected. This galactic current sheet produces a magnetic kick as well as extra material being dumped on our Sun. Evidence of our Sun to micro nova which will unlock the crust from the mantle. The ice weight at the polar regions would drive the crust towards the equator (Greenland & Antarctica). This Earth tilt has been described in religious texts as well as stories & legends. Tree rings & geophysical evidence of devastating tsunamis convinced Einstein & others that it is a real phenomenon. It was happened before & it will happen again. “No Fear” Ben Davison
The title of this video is misleading, Toba filled only a short part of the longer, albeit interesting, video. Toba is an active supervolcano, unlikely to erupt anytime soon, but still a potential threat. The United States has several supervolcanoes, many of which are active to one extent or another, Europe has one confirmed and one suspected - and as they noted, there are around 27 confirmed, I believe 8 are confirmed active with the status of others unsure. A longer video detailing all the known supervolcanoes, their eruption history and potential for threat would be very interesting to many, certainly worth consideration, but that would need to be at least 1.5hrs long to do the subject even passing justice...
Love these earth science documentaries with a few years on them. It also never fails to amuse the people in the comments section always ready to shred 20 year old scientific theory...lol... Hope everyone has a great day or night!
Exactly, most science is based on theoretical principal and the only thing validating said theories is it's acceptance by the "established" scientific community. Even when one science contradicts another the "established" scientific community is very slow to change it's mind about a "fact" and look for a new answer which in turn will just be another theory until it is again contradicted by another theory.
Tunguska objective was 30 feet across? That's a joke. The estimate was somewhere from 10-15 megatons equivalent energy released in an air burst form 2-5 miles above the forest. More like 300 feet across. Also, not metallic or rocky core found at Tunguska, so more likely a cometary fragment. The Chelyabinsk object was estimated around 75 feet across and yielded 1-2 megatons, they found pieces of the core
@@misterlyle. From what I've read yes comets are faster. You can search for and play with impact calculators online that demonstrate how different factors affect the impact energy.
@@misterlyle. Comets are typically a lot faster since they orbit way out in the solar system and then come in. Asteroids that hit us are usually from a lot closer. Meteors can hit us around 50000mph where comets can exceed 110000mph due to their acceleration as the approach the inner solar system.
Only small mammals that lived in burrows, insects likewise and reptiles survive worldwide disasters. Alligator, crocodile s, snakes, turtles. I don't know the classification of turtle and tortoises but they can burrow and live in water. The Indonesia Toba supposedly had only a couple thousand surviving of our ancestors in Africa. Probably cause they had already been dwelling in caves to protect them from others and predators. They had to have a water source from below ground. Like in Florida that has fresh water springs running from 500 feet below to 1 2 thousand. So we are all descendants of Africa. The instinct to explore caused dark skinned people living in tropical heat to become white after they settled in the northern hemisphere. Don't see many dark haired dark-skinned Scandinavians.
The video starts off with a false statement, that being humanity hasn't experienced a global disaster. There is amble evidence that we did indeed experience a global disaster a mere 12,500 years ago.
@@matthewstorer8236the Clovis were not wiped out. 80% of all Native Americans in both North and South America are directly tied to the Clovis people through DNA. The Folsom culture overlaps the Clovis in North America and continues on after the Clovis. The amount of pure misinformation on this subject being pushed out by peddlers of pseudoscience is astounding.
I lived 600 miles from Mount St. Helens, and I remember shovelling an inch and a half of ash off cars when it erupted. Very heavy. Looked like snow, but gritty.
I followed a series by Anthony Zamora that theorized that a crater made by an asteroid hit the ice on the coast of Greenland that helped cause the extinction of the megafauna in North America. Is anyone following that theory?
Yes. He's right, but the impact was not in Greenland. It was on the ice sheet near the Great Lakes area. There are probably two impacts at that location, also one in South America and one in Europe/ Middle East (I can't remember now). The North American impact pulverized life in North America.
@@justmenotyou3151 There’s at least two impact sites. One in Saginaw Michigan, the other in western Greenland. The latter being the larger (visible) impact site.
@dalesmth1 My understanding is that the one in western greenland is millions of years old. Age dating conductedcin 2022. Hiawatha Glacier in northwestern Greenland, if that is the one you are referring to.
So much focus on Yellowstone but Campi Flegrei and Taupo super volcanoes are more likely to erupt before yellowstone, the lake bed of taupo is rising and falling, is is also the most active super volcano with it being the most recent super volcano eruption and been active 25x in the last 12,000 years
Mr bobbenson disaster being a stalker is incorrect.Disaster has NEVER stalked anything or anyone. Disaster is inanimate. It is not selective. NATURALLY.
I know it sounds odd, but if an eruption like this occurred in our lifetime, it would be terrifying but also kind of cool. I'm sure people would manage to livestream it ... I mean, it would undoubtedly be their last contribution to the world, but would still be incredible to watch xD
AGREED! A meteorite must connect with Earth, so unless it does, it's a meteor (penetrates Earth's atmosphere) and if it's out in space, it's a meteoroid.
As usual, they're talking about Supervolcanoes but they're showing cone volcano images... The reason for that is that there is *_no footage of a supervolcano in existence_* as no human has *_ever_* seen one.
Oh yeah... The Ice Storm of '98".... I was living in Montreal then... in a tiny apartment with my wife of just over a year, our newborn and news that she was with another! Oooh raaah... Irish twins! Anyway... didn't miss a day of work, never lost power because my work and apartment were on the same priority grid as the east end water treatment plant (although we were one line away from total blackout).... but it was a crazy event!
I love how the narrator says that we've not experienced a single disaster. I beg to differ sir. Okay.. Then Please explain for me, if you can... How the fuck humanity survived the Events of the 530's AD?
Everyone here talking about science like they got it all wrong when this doc is likely out of copyright and from the 90s. Things have changed since then, alot of what we were taught in science when i was in school at that age are no longer mainstream ideas today.
The worry about people heading towards the equator shouldn't be an issue. If the glaciers suck up the water, then sea levels will fall, and expose more land.
That theory doesn't make sense. If the meteor wiped out all the mega-animals, then it would have also wiped out all the humans, so there wouldn't be any hunters left either.
@@binkwillans5138 But they can include analysis of the evidence that does exist. One study includes discussion on this topic, published in the _Proceedings of the National Academy of Sciences_ by T. Green, P. Renne and others in 2022. If your default setting is to be skeptical about such things, that is a good thing.
@@misterlyle. Thank you. I agree with the peer-reviewed and as-yet-to-be-tested and hypothesis that continental flood basalts could have contributed in part to this extinction. Nevertheless, first principles indicate the likely first cause of such a mass basalt eruption would be the impact of a large asteroid.
We don't have to worry about human extinction from an asteroid or volcano, before that happens, we have already self destruct because of our greed and stupidity.
Thanks to geologists we think that all living beings on our planet Earth have the most to fear from an asteroid impact or volcano eruptions. But when we look at the many horizontal layers that we find everywhere on our planet, we clearly see the effect of a repeating cataclysm. These disasters are mentioned in ancient books like the Mahabharata from India and the Popol Vuh from the Maya and others. They tell us about a cycle of seven disasters. Certainly, a cycle of regularly recurring global disasters cannot be caused by asteroid impacts or volcanic eruptions. The only possible cause is another celestial body, a planet, orbiting our sun in an eccentric orbit. Then it is close to the sun for a short period and after the crossing at a very high speed it disappears into the universe for a long time. Planet 9 exists, but it seems invisible. These disasters cause a huge tidal wave of seawater that washes over land "above the highest mountains." At the end it covers the earth with a layer of wet mud, a mixture of sand, clay, lime, fossils of marine and terrestrial animals and small and larger meteorites. The Northern hemisphere is covered with a layer of ice that fell down "in blocks as great as mountains". These disasters also create a cycle of civilizations. To learn much more about the recurring flood cycle, the re-creation of civilizations and its timeline and ancient high technology, read the e-book: "Planet 9 = Nibiru". It can be read on any computer, tablet or smartphone. Search: invisible nibiru 9
lmao, hardly any of those layers are young enough to have formed during humanities time. So there can't be a record of that no mater how much junk science and B.S. about that elusive planet people put out there. Its the typical BS that appeals to the ignorant and makes a lot of money on social media.
But if an asteroid hit an ice sheet and didn't make a crater that threw millions of tons of rock and debris into the atmosphere, how could it cause the mammoths to go extinct?
The previous eruptions along the Hawaiian, Yellowstone, or other chains, were they just as powerful with each other and had been eroded down over time, or did they secessively grow stronger and more dangerous with each interation? If equally dangerous, how did life survive? Was it ever totally life-threatening?
You provided wrong data about Toba eruption. According to your video: 2 billion cubic feet = 0.0566 km3 In reality, Toba super volcano eruption 74ka produced ejecta at volume of ~2800 km3. For comparison, Mt Helen's eruption ejected 1 km3 of material (ash, rocks, lava).
Ok genius 🤣, we believe you ( NOT ). How’s your boyfriend doing 👄? You know, Epstein’s wingman? You must be part of the club, correct? Have fun being part of that exclusive club 😂. Birds 🦅 of a feather, true cultist 🤣🤣?
i dont know about ever living through a volcanic eruption that would engulf most of us with ashes. Perhaps all civilizations eventually suffer the same fate
Humans survived the last time Yellowstone erupted, around sixty thousand or more years ago. Other reports suggest it would not be global, but hemispherical. In our modern global economy, that would still be unimaginably catastrophic if we haven't prepared.
A misleading title. There was a section dealing with past and future potential Vulcanic disaster, but this 'documentary' dealt with many other issues as well, asteroids, ice ages etc. I guess that's the cost of turning science into entertainment 😕. Thankyou naked science for the upload all the same. I think many of the comments before mine are interesting and worth reading as well!!
It doesn't make sense that an asteroid would be powerful enough to wipe out large mammals in every corner of North (and South) America without a similar and noticeable impact on Europe and Asia. There has to be some evidence of that elsewhere on the planet for this hypothesis to hold up. Analogizing to the dinosaur event just makes the point.
@jholt03 15 minutes ago The scientific community is too hung up on finding a crater. If it was a flurry of impacts emanating from the disintegrating progenitor of Comet Enki, as some have proposed, the Earth could've been hit dozens of times, over hundreds of years by fragments far larger than Tunguska, and there would never be a crater, not only because the impact(s) may have occurred over an ice sheet, or the oceans for that matter, but mainly because as they enter the inner solar system, low density, frozen comet fragments are travelling so much faster than asteroids, the explosions would have occurred upon impact with the atmosphere, miles before they could ever reach the ground. Climate change is the blame all term these days, but as stated in the video, these animals had survived through many cycles of warming and cooling that happened just as rapidly if not more-so than any climate changes at the end of the last glacial maximum, or that's going on today. The over hunting hypothesis is utterly ridiculous. The overall biomass of just the herbivories would have been many hundreds of thousands of times more than the limited human population at the time of these extinctions. Plus thanks to the footsteps at White Sands New Mexico and many other pre-clovis sites, we know now that humans had been in the Americas for at least 10,000 years before Clovis, so there goes the "naive prey" idea. Another point is that the Clovis culture came to a sudden end right along with the mega-fauna extinctions, suggesting they were nearly wiped out as well. An impact or series of impacts makes the most sense to me.
I don't believe that the layer of ice that was used was representative in the impact experiment, it would represent many miles thick if it were scaled up and the red layer of dust which represents the Earth's crust would be many miles thinner than it actually is, wouldn't it? The crust layer should represent a thickness of 35 - 43 km, and the ice had a thickness of 3 - 4 km on average. That ice sheet that he used was way too thick...by several kilometres.
The only problem with that theory, is the Earth is warming,and the glaciers are meting, so an ice age isn't likely unless we stopped using pollution causing autos that rely on gas, or we stay and work from home(when we can), or go electric,or better yet, we use bicycles,walk,ormake one trip.Instead of going straight home after work,you need say milk,bread, eggs, whatever, go from workto the store THEN gohome
... Well, if the Yellowstone Super Volcano is the " most famous of them all " this is ONE area where America is more than welcome to be NUMBER ONE ! ... 🇺🇸 🥰 🇺🇸🥵😶🌫
This video is quite old. The computer monitors are almost all CRT not LED. The clip of Professor Bill McGuire shows a much younger man than Bill's current age of 70.
I love how the scientists are using SI units, like kilometre and celsius. You'd expect nothing less. It's a real pity the narrator didn't do the same. I mean, how confusing and unprofessional, using two different systems of measurement, on a science documentary.
It's my understanding that the human race went through a population bottleneck about 70-80 thousand years ago, that reduced the entire human population worldwide to about 2-10 thousand people. Could this have been caused by the Toba eruption?
The return of an ice age has nothing to do with the earth being further from the sun - its the result of the Milankovitch cycle - a combination of orbit eccentricity, axial tilt & axial precession.
Right.
Ice block bombing
......................... "RING's" of "FIRE's" !!
What ice age? Lol
Milankovitch cycles have been occurring since the Earth got it's tilt. That tilt has been hypothesized to have resulted in a planet-sized body - Theia ~ en.wikipedia.org/wiki/Theia_(planet) - colliding with the Planet & (perhaps) excavating the rocky material that eventually formed the Moon ...
That is supposed to have happened more than four BILLION years ago, and yet there is no evidence (that I know of) of any of Earth's many Ice Ages and glacial periods that are confirmed to have been DIRECTLY caused by the Milankovitch cycles that must surely have existed - with varied period duration's - SINCE the Planet's tilt occurred ...
There are actually 2 chambers fueling Yelllowstone. The lower one dwarves the upper one, and the upper chamber still holds enough magma to fill the Grand Canyon...11 times over
I believe you have that backwards.
@Anti-furry-UK
Why?
Tobas eruption was stronger
I do believe you are correct.
@@riverlady982
This is true
The supervolcano of Europe: The Campi Flegrei (Phlaegrean Fields) very close to Naples, very dangerous and powerful.
Yeah, those Italy volcanoes are just "simmering" at the moment. Iceland is VERY concerning also, and Ruang volcano that JUST erupted (April 17th) is also another highly eruptive Indonesian volcano. Although there were tsunami alerts, thankfully there hasn't been anything significant thus far.
The biggest most destructive super volcano is here on my ancestors land in America
@@donjizzlemontananope, it's in Indonesia.
Sorry, meant for comments
In the ocean lol
When I visited California I went to the history museum and I talked with a gentleman that I can’t remember his name but we talked about this specifically and it was very interesting on the information he had to share.
@nathanboolin
Cool story
@@JackSmith-kp2vs You're a decent guy, Jack. Social media is so ripe with moments to willfully visit humiliation on others that just the glint of authenticity in reaffirming someone's sincerity becomes something of note, to remark upon what should be unremarkable.
Fortunately, the effect of small but pure gestures like yours is logarithmic; emotional generosity has the power of a waveform, each example radiating out from its splash of origin in "ripple-it-forward" concentric victories over the long project to figure ourselves out. If life in our gauntlet of an era allowed, I imagine the spirit of such gestures continuing as long as forgiving, still waters allowed, all the while humanizing the horizons of experience.
I hope I didn't patronize either you or Nathan, but I have observed or endured too many episodes of pointless disparagement in social media to let someone's intentional grace go unnoticed. I know the fragrance of humanity when it drifts by.
You stink
@@prototropocool very very cool.
@@prototropo You should look more into Jesus. Most amazing story right there, usually getting dusty on people's shelves. Talk about opening up spiritually, once you open those eyes, your new world is eternity ahead
Age and accuracy aside, it is the questions being asked that are important. If we never wonder about the past we have no perspective on the future.
Probably because even the current system still pushes people to survive instead of having people to become smarter and study further.
You think our civilization is 8,000 years old? Yeah forget Gobekli Tepe. I guess it sat here for 4,000 years before we arrived. Gobekli Tepe is 12,000 years old and contains megalithic architecture, which means it was not our first structure. Way before that, we were living in huts and caves.
Nazca was created around the same time.
I love how this type of documentary completely disregards the fact that Australian Aboriginal peoples survived the ice age. That culture still survives today.
I noticed that Neanderthal graves were dated back to 75,000 years , around the Time Toba erupted causing Nuclear Winter and food chain failures.
@@UA-cam_user3333no,convicts haven’t been that long
This program is old, and may have been filmed before the dates for Gobekli Tepe were known.
The narrator asserts that Earth's changing distance from the sun is what caused the ice ages. This is doubtful at best. Because Earth's orbit is an ellipse and not a circle, its distance from the sun normally varies from 91 million miles to 94 million miles over the course of each year. And we don't have an ice age every year.
its the axis...tilt
@@redskinjim
Earth's rotational axis is tilted to 23.5° relative to its orbital plane. However, its axis wobbles like a spinning toy top that is slowing down. Over time, therefore, the north pole points to different areas of the sky, describing a circle. This is known as axial precession. It takes 26,000 years for a complete circle. It has nothing to do with ice ages.
If the ice age was caused by the Earth moving away from the sun by a tiny bit, why did the ice age go away....did we come back to the sun...? There is one major catastrophe not mentioned that is happening right now...US..!! The woke generation, the Gimme Generation, People do what they want and care nothing for anyone else, only wanting what THEY want. SOME people, THOSE sort, think they are so proud to die they'll take everyone with them. Perhaps we could use another ice age right now...we have had so many in the past. I DO wish we still had the Wooly Mammoth, though.....a fine animal, that..... Nyms.
The Ice Age Cycle is caused by a combination of changes in the Earth's Tilt, shape of orbit, and Precession, together known as the Milankovitch Cycles. The Ice Age Cycle is caused by a COMBINATION of these three orbital cycles.
Also the shape of the ellipse changes in a cyclic manner.
I never did particularly like the hypothesis that the disappearance of the megamammals was caused by humans hunting them to extinction. How could a few hundred nomadic hunter-gatherer bands do that, especially since they likely didn't hunt the larger animals all that often? The hypothesis that a large meteor impact event caused the extinction of the megamammals seems much more plausible.
Blaming humans is something of a default setting where archeology is concerned.
It can happen. If there is a large species which have had no predators for a very long time, they can be very slow at reproducing. A new predator with increasing numbers could reduce that population to the point they become unsustainable.
I don't think blame is the correct word. However, they have found pit trap remains that we're used by humans to trap mammoths. The pit trap was an evolution to cliff herd killing, i.e. stampeding herds of the edge of a cliff.
Maori managed to kill off the Moa population in New Zealand within a few hundred years of arrival. So not an unfounded revelation.
@@OGSomeOne
That's true. But how often did any particular band of humans hunt large animals? It would have been a major endeavor and any particular group would not have done it all that often. In fact, it might have taken a combined group to dig a pit trap, camouflage it, herd the animals into it, and process the kills.
Furthermore, how often would a particular herd of mammoths, bison, etc. have been subjected to a massive hunt? I doubt that it would have been enough to effect the genetic viability of a particular herd, much less the entire population of a species.
Between asteroid impacts, mega volcanoes, ice ages, and pandemics life on Mother Earth looks rather bleak, but mankind is very resourceful.
We'll just resort to atomic energy on an increasing scale to power UV light, households and, hey, if it all goes pear shaped we won't need street lights anymore.
Or humans will cause our own extinction.
Super Volcanoes like Yellowstone, Lake Toba, Siberian Traps, Laguna del Maule, Cerro Galan, Aira Caldera, The Phlegraean Fields/Campi Flegrei outside Naples, Italy, etc.
You forgot The Long Caldera in California. The trees are dying from gas emissions in that caldera? Showing other symptoms too.
You forgot Mount Shasta. It uh, yeah. (Bong rip)
@@jaysinlsavage50 Mt. Shasta is not a super volcano, but the Long Valley Caldera (California) is. It is possible to create more death & destruction than Yellowstone.
The Siberian Traps was NOT a Supervolcano. It was an entire area called a Large Igneous Province. An entire continent of lava, basically.
You got everything right except Siberian Trap, it's not a supervolcano.
You title super volcano toba but you never show that region where is toba and how it looks like now
You're joking, right?? The volcano is one of Indonesia's volcanoes (Sumatra), and the eruption occurred 74,000 YEARS AGO, so why would it matter how it looks now??? Did you fail grade school?? 😜 It's a good documentary, try watching it. lol
@@heatherstewart9300 The doc is about Toba yet as was said nothing was shown of it. Yet other calderas were shown and compared to Toba without showing Toba. The caldera is huge and still active with large deposits of ash very visible even after 74000 years. This doc isn't the only one mentioning Toba by far.
I know right, it supposed to be about Toba but somehow shifted to anything related to USA hahaha.
Between Java and Sumatra
@@cavemancaveman5190 that's Krakatoa, not Toba
600 to 1.4 billion people! Wow, way to go, India! 😂🇮🇳
Yeah, sure.
Every Human alive descended from 5000 survivors of Toba. It is thought that before Toba the Human population was about 2 million people.
@@darthwiizius Every human alive is here today because of God saving Noah and his family.
@@howsitgrowin
2 problems with your fairy story: 1. Noah never existed. 2. There has been no Global floods since man has existed on this planet, the Chinese and Bronze age Europeans would surely have noticed such an event. Now I could add in the fact that according to your little fantasy story Noah's "family" "repopulated" the whole planet inside their lifetimes which, of course, also never happened but hey if you want to believe in utter bollocks knock yourself out, you do you champ.
@@darthwiiziusWe are all Tobans!
There are a few things wrong with this documentary. One, Tunguska was an airburst, not an actual impact. The proof is that at the epicenter, the trees were left standing, as opposed to being incinerated. Two theories not even mentioned in the documentary on the onset of the Younger Dryas deserve consideration. The most plausible theory was a massive solar storm, also known as a micronova, occurred when the sun ejected its topmost layer into the solar system, possibly by pressure building as the topmost layer of the sun started to cool and contract. The effects would have been diverse and catastrophic... instantaneously on the side facing the sun there would have been incineration, as the atmosphere would have been insufficient to shield the earth from the micronova.and the iron clovis layer could be ejecta from the microburst from the sun. On the opposite side, there was an instantaneous drop in temperature drop, which is why you find mammoths with undigested food in their stomach and even flowers in their mouths... they hadn't even time to spit out their food before they were instantaneously flash frozen to several hundred degrees below zero. These are relatively recent discoveries, and explain a lot. So the crater of a massive impact does exist, but it doesn't explain the instantaneous melting of all the ice on earth which brought on a massive flood that is recounted in every culture's oral and traditional histories, including 'Noah's flood" which was recorded worldwide in ancient texts including of cour\se the Bible. Prior to this, the sea levels were up to 400 feet lower than they are today, and an instantanious liquefication of all the ice on earth would have wiped out most of civilization, in addition to creating massive tsunamis that would have wiped out most of civilization living on the then coast which is marked by the continental shelf surrounding the continents. A third possibility is a magnetic pole reversal, which would have reversed the rotation of the Earth and slowed the rotation of the inner nickel-iron core while the surface continued to rotate- air, water, and the associated debris washing across the surface as the 1,000 mph rotation slowed then reversed. A reversal does not mean the earth was flipped upside down, only the magnetic polarity was reversed. Only such a massive shift could cause native Peruvians in the Andes have legends of 'blue-green water' overtopping the Andes. For more information, the Hiawatha crater has its own video I watched half a year back (ua-cam.com/video/wDszV2XvybU/v-deo.html), the solar storm theory is embraced by the UA-cam channel The Why Files and by the Diebold Project, which predicts another microburst based on extensive calculations could happen as early as 2046. No matter which bears out to be the culprit, it is more likely it may be a combination of the three, either in succession or almost simultaneously.
You sound an SO, Suspicious Observer, me too. I just saw an article about the Siberian Traps (volcanoes 250 million years ago). Wow!
@@sueerickson9988I watched that yesterday as well!
A macronova caused the younger dryas as the best theory? You might have missed the mass of evidence for the impact/airburst theory. Microsphereules, landacites and other impact nanodiamonds.
You've assembled several interesting things into one paragraph, Dave. Some, however, don't fit very well. For example, Earth's magnetic pole has shifted numerous times; we may have one developing in the near term. Magnetic field patterns locked into the Atlantic seabed reveal how often this has happened. Earth's rotation isn't affected, but the magnetosphere probably will be. The cataclysm you described, however, isn't magnetic pole shifting, but a different fringe notion where the geologic layers of the planet move catastrophically.
@@misterlyle. Recently I found out both Dave as well as myself are SOs (Suspicious Observers). I am in the process of reading Ben Davidson’s 4 books. The most recent book is Earth Disaster Cycle, The Cycle resets soon. I watch Suspicious Observers daily (sometimes twice) & read the articles suggested by Ben. Mini-excursions happen -6k years & -12k years there is a “geomagnetic excursion” which is a rapid flip of Earth’s magnetic field, which the North & South magnetic poles move. There is a major reduction in the magnetic field protection of Earth. Currently the geomagnetic excursion has been moving since 1859 Carrington Event. The North is moving toward Russia & the South toward Indonesia. There is a large Ozone hole near Antarctica. - 10 years was estimated the Earth’s magnetic field has been diminished by 25 to 30%. The new % s are probably higher now. SWARM is closed mouth about the changes. The poles will meet near between India & Indonesia. The opposite of the meeting place is near Peru. These excursions can produce major extinctions of species as well as reductions in populations of species that do not go extinct. More radiation is entering our atmosphere & surface, because a decrease in our ozone layer. Impact craters are part of the cycle. Increase & severity in volcanic event’s as well. The is evidence that stars been recurring nova because of a “magnetic kick” or material being dumped on the star. One example is Betelgeuse which dimmed then flicked. The magnetic current sheet from the Milky Way is producing changes in our solar system. The Sun & all of our planets are being affected. This galactic current sheet produces a magnetic kick as well as extra material being dumped on our Sun. Evidence of our Sun to micro nova which will unlock the crust from the mantle. The ice weight at the polar regions would drive the crust towards the equator (Greenland & Antarctica). This Earth tilt has been described in religious texts as well as stories & legends. Tree rings & geophysical evidence of devastating tsunamis convinced Einstein & others that it is a real phenomenon. It was happened before & it will happen again. “No Fear” Ben Davison
The title of this video is misleading, Toba filled only a short part of the longer, albeit interesting, video. Toba is an active supervolcano, unlikely to erupt anytime soon, but still a potential threat. The United States has several supervolcanoes, many of which are active to one extent or another, Europe has one confirmed and one suspected - and as they noted, there are around 27 confirmed, I believe 8 are confirmed active with the status of others unsure. A longer video detailing all the known supervolcanoes, their eruption history and potential for threat would be very interesting to many, certainly worth consideration, but that would need to be at least 1.5hrs long to do the subject even passing justice...
Love these earth science documentaries with a few years on them. It also never fails to amuse the people in the comments section always ready to shred 20 year old scientific theory...lol... Hope everyone has a great day or night!
Exactly, most science is based on theoretical principal and the only thing validating said theories is it's acceptance by the "established" scientific community. Even when one science contradicts another the "established" scientific community is very slow to change it's mind about a "fact" and look for a new answer which in turn will just be another theory until it is again contradicted by another theory.
Tunguska objective was 30 feet across? That's a joke. The estimate was somewhere from 10-15 megatons equivalent energy released in an air burst form 2-5 miles above the forest. More like 300 feet across. Also, not metallic or rocky core found at Tunguska, so more likely a cometary fragment. The Chelyabinsk object was estimated around 75 feet across and yielded 1-2 megatons, they found pieces of the core
How does speed of impact figure in? Do comets move faster than typical asteroids?
@@misterlyle. From what I've read yes comets are faster. You can search for and play with impact calculators online that demonstrate how different factors affect the impact energy.
@@misterlyle. Comets are typically a lot faster since they orbit way out in the solar system and then come in. Asteroids that hit us are usually from a lot closer. Meteors can hit us around 50000mph where comets can exceed 110000mph due to their acceleration as the approach the inner solar system.
@@SnuffitLabs Thanks for the reply!
very well done, I especially like the info on the younger dryas period
Animals would also be killed too. Not just people.
Not my skunks!
Who you telling?!!😅
That's the sad part. ;)
Only small mammals that lived in burrows, insects likewise and reptiles survive worldwide disasters. Alligator, crocodile s, snakes, turtles. I don't know the classification of turtle and tortoises but they can burrow and live in water. The Indonesia Toba supposedly had only a couple thousand surviving of our ancestors in Africa. Probably cause they had already been dwelling in caves to protect them from others and predators. They had to have a water source from below ground. Like in Florida that has fresh water springs running from 500 feet below to 1 2 thousand. So we are all descendants of Africa. The instinct to explore caused dark skinned people living in tropical heat to become white after they settled in the northern hemisphere. Don't see many dark haired dark-skinned Scandinavians.
The video starts off with a false statement, that being humanity hasn't experienced a global disaster. There is amble evidence that we did indeed experience a global disaster a mere 12,500 years ago.
Looking more and more like that is the case. The entire Clovis culture wiped out along with mastodons,whooly rhinos,dire wolves and Sabre tooth cats.
The younger dryas
@@matthewstorer8236the Clovis were not wiped out. 80% of all Native Americans in both North and South America are directly tied to the Clovis people through DNA.
The Folsom culture overlaps the Clovis in North America and continues on after the Clovis.
The amount of pure misinformation on this subject being pushed out by peddlers of pseudoscience is astounding.
@@matthewstorer8236none of them disappeared at the same time as the extinctions were not synchronous..
I was pretty young back then...
We live in dangerous times
In theory its getting safer the more time passes.
Amazing work and content ❤
Excellent documentary...🎉
I lived 600 miles from Mount St. Helens, and I remember shovelling an inch and a half of ash off cars when it erupted. Very heavy. Looked like snow, but gritty.
St. Helens (1980) ejected 1 km3 of ash.
Toba (74000 years ago) ejected 2800 km3 of ash.
Error: The narrator says that a "giant meteorite" kill the dinosaurs. No, it was a meteor. A meteorite is what you find on the ground after impact.
And before it reached Earth's atmosphere, it was a meteoroid.
And before it reached Earth's atmosphere, it was a meteoroid.
Explains the Carolina Bays formations. The time is about right too. massive ice chunks sent flying and landed in a fanned out pattern around the US
I followed a series by Anthony Zamora that theorized that a crater made by an asteroid hit the ice on the coast of Greenland that helped cause the extinction of the megafauna in North America. Is anyone following that theory?
Yes. He's right, but the impact was not in Greenland. It was on the ice sheet near the Great Lakes area. There are probably two impacts at that location, also one in South America and one in Europe/ Middle East (I can't remember now). The North American impact pulverized life in North America.
@@justmenotyou3151
There’s at least two impact sites.
One in Saginaw Michigan, the other in western Greenland. The latter being the larger (visible) impact site.
@dalesmth1 My understanding is that the one in western greenland is millions of years old. Age dating conductedcin 2022. Hiawatha Glacier in northwestern Greenland, if that is the one you are referring to.
@@justmenotyou3151
I stand corrected. You are right.
I was unaware of that research until now.
So much focus on Yellowstone but Campi Flegrei and Taupo super volcanoes are more likely to erupt before yellowstone, the lake bed of taupo is rising and falling, is is also the most active super volcano with it being the most recent super volcano eruption and been active 25x in the last 12,000 years
Wish people would stop calling Campi Flegrei a "Supervolcano".
It has never had a supervolcanic eruption (more than 1000km3).
always good to get the closest correct info out there to the masses.
this is brilliant
A "diamond" is brilliant. Right???
I can care less about humans,,but its a shame the animals had to die.
I live 4 hours from this Toba supervolcano... if it's erupted.. I might as well just waiting for it.
"Disaster has stalked the earth since the birth of the planet." Way to start as you mean to go on. Fear factor engaged! nerts to this
Mr bobbenson disaster being a stalker is incorrect.Disaster has NEVER stalked anything or anyone. Disaster is inanimate. It is not selective. NATURALLY.
i live in the foothills of mt hood. it still rumbles now and then
Must live in the hood. Hoodlum you must be
I know it sounds odd, but if an eruption like this occurred in our lifetime, it would be terrifying but also kind of cool. I'm sure people would manage to livestream it ... I mean, it would undoubtedly be their last contribution to the world, but would still be incredible to watch xD
Don’t you ever call an Asteroid a meteorite! It…..Well it makes me upset right there.
AGREED! A meteorite must connect with Earth, so unless it does, it's a meteor (penetrates Earth's atmosphere) and if it's out in space, it's a meteoroid.
Mr jaysinlssavage the comment that upsets you doesn't exist. What DOES exist is not upsetting. You do exist do you not???
my fav youtube channel...
As usual, they're talking about Supervolcanoes but they're showing cone volcano images... The reason for that is that there is *_no footage of a supervolcano in existence_* as no human has *_ever_* seen one.
Some have suggested that climate change will end the ice ages.
A paper was recently published that we are in or approaching an ice age termination event due to climate change.
Oh yeah... The Ice Storm of '98".... I was living in Montreal then... in a tiny apartment with my wife of just over a year, our newborn and news that she was with another! Oooh raaah... Irish twins!
Anyway... didn't miss a day of work, never lost power because my work and apartment were on the same priority grid as the east end water treatment plant (although we were one line away from total blackout).... but it was a crazy event!
I love how the narrator says that we've not experienced a single disaster.
I beg to differ sir.
Okay.. Then Please explain for me, if you can... How the fuck humanity survived the Events of the 530's AD?
Being single is a disaster. And ever so lonely
So YOU lived in the 530's?? Your name must be "BARNABAS"???
This is wonderful science wish I watched stuff like this when I was a kid
Everyone here talking about science like they got it all wrong when this doc is likely out of copyright and from the 90s. Things have changed since then, alot of what we were taught in science when i was in school at that age are no longer mainstream ideas today.
The worry about people heading towards the equator shouldn't be an issue. If the glaciers suck up the water, then sea levels will fall, and expose more land.
So you think like "Moses" ?
Wooow. Volcano is a force not be mess with. !
The humans form a species, not a race.
RACES are run in athletic competitions. Like it happens in track and field.
There are no "rings of fire". If there was, it would burn the ring finger.
NO ONE has ever ruled the planet. There is no evidence of this. Markings on earth have never been found i.e. measurements made with a "ruler".
That theory doesn't make sense. If the meteor wiped out all the mega-animals, then it would have also wiped out all the humans, so there wouldn't be any hunters left either.
The word "hunters" is not mentioned. Interpret correctly...
@@frankmejia3605 Why then was the narrator calling the Clovis hunters and gatherers?
Shouldn't there be iridium in that iron layer as well like the KT boundary layer?
🔥
An so the question is . Did an Astroid kill the dinosaurs ??? Or Was it a mega volcano ???
You don't get so much iridium in a volcanic eruption.
@@binkwillans5138 But there have been discussions indicating that it was a "double whammy," where both events happened close together in the timeline.
@@misterlyle. Discussions are not evidence.
@@binkwillans5138 But they can include analysis of the evidence that does exist. One study includes discussion on this topic, published in the _Proceedings of the National Academy of Sciences_ by T. Green, P. Renne and others in 2022. If your default setting is to be skeptical about such things, that is a good thing.
@@misterlyle. Thank you. I agree with the peer-reviewed and as-yet-to-be-tested and hypothesis that continental flood basalts could have contributed in part to this extinction. Nevertheless, first principles indicate the likely first cause of such a mass basalt eruption would be the impact of a large asteroid.
We don't have to worry about human extinction from an asteroid or volcano, before that happens, we have already self destruct because of our greed and stupidity.
The Toba explosion didn’t stop humans from spreading.
Spreading what? Butter on bread???
Thanks to geologists we think that all living beings on our planet Earth have the most to fear from an asteroid impact or volcano eruptions. But when we look at the many horizontal layers that we find everywhere on our planet, we clearly see the effect of a repeating cataclysm. These disasters are mentioned in ancient books like the Mahabharata from India and the Popol Vuh from the Maya and others. They tell us about a cycle of seven disasters. Certainly, a cycle of regularly recurring global disasters cannot be caused by asteroid impacts or volcanic eruptions. The only possible cause is another celestial body, a planet, orbiting our sun in an eccentric orbit. Then it is close to the sun for a short period and after the crossing at a very high speed it disappears into the universe for a long time. Planet 9 exists, but it seems invisible. These disasters cause a huge tidal wave of seawater that washes over land "above the highest mountains." At the end it covers the earth with a layer of wet mud, a mixture of sand, clay, lime, fossils of marine and terrestrial animals and small and larger meteorites. The Northern hemisphere is covered with a layer of ice that fell down "in blocks as great as mountains". These disasters also create a cycle of civilizations. To learn much more about the recurring flood cycle, the re-creation of civilizations and its timeline and ancient high technology, read the e-book: "Planet 9 = Nibiru". It can be read on any computer, tablet or smartphone. Search: invisible nibiru 9
lmao, hardly any of those layers are young enough to have formed during humanities time. So there can't be a record of that no mater how much junk science and B.S. about that elusive planet people put out there. Its the typical BS that appeals to the ignorant and makes a lot of money on social media.
But if an asteroid hit an ice sheet and didn't make a crater that threw millions of tons of rock and debris into the atmosphere, how could it cause the mammoths to go extinct?
The debris came back down and pulverized everything.
These people really just jumped from the Ice Age to the Industrial Revolution???
There is the possibility of a meteor strike in Anatolia as well - check out Gobekli Tepe archaeology which dates from around 12000 years ago.
Actually, this programme pissed me off. America is *not* the only continent on earth, though you'd think so from the half-baked commetary..
The previous eruptions along the Hawaiian, Yellowstone, or other chains, were they just as powerful with each other and had been eroded down over time, or did they secessively grow stronger and more dangerous with each interation?
If equally dangerous, how did life survive? Was it ever totally life-threatening?
So between 0009h - 2030h (not 8.30pm, cos we're using the 24 hour clock) absolutely nothing else happened?
14:04 "Yellowstone park lies near the middle"
Pretty sure that's not the middle of the United States.
You provided wrong data about Toba eruption. According to your video: 2 billion cubic feet = 0.0566 km3
In reality, Toba super volcano eruption 74ka produced ejecta at volume of ~2800 km3.
For comparison, Mt Helen's eruption ejected 1 km3 of material (ash, rocks, lava).
Where's the creator where the other object hit earth?
Lesson learned here: "If you live in Montreal, maybe consider moving to Houston".
Too many hurricanes in Houston. Instead move to Miami. But not Miami, Az.
You left out a large Tunguska event atmospheric blast could do the same as the blast in the ice.
Following the human migration from Africa, there were no humans in India at that time, but much later.
Yellowstone will never erupt as a Super Volcano...it has way too many vents to reach that much pressure !
*FJB !*
Ok genius 🤣, we believe you ( NOT ). How’s your boyfriend doing 👄? You know, Epstein’s wingman? You must be part of the club, correct? Have fun being part of that exclusive club 😂. Birds 🦅 of a feather, true cultist 🤣🤣?
Heaven forbid CO2 rises from 0.04% of the atmosphere. The planet wouldn't be able to take it.
Planet is inanimate. It would take it.
Narrator says re: the glaciers, "for your ancestors, there was no escape!" Didn't our ancestors migrate south away from the glaciers?
i dont know about ever living through a volcanic eruption that would engulf most of us with ashes. Perhaps all civilizations eventually suffer the same fate
Humans survived the last time Yellowstone erupted, around sixty thousand or more years ago. Other reports suggest it would not be global, but hemispherical. In our modern global economy, that would still be unimaginably catastrophic if we haven't prepared.
A misleading title. There was a section dealing with past and future potential Vulcanic disaster, but this 'documentary' dealt with many other issues as well, asteroids, ice ages etc. I guess that's the cost of turning science into entertainment 😕. Thankyou naked science for the upload all the same. I think many of the comments before mine are interesting and worth reading as well!!
K R A K A T O A ! !
Crack?????
Thank you so much,so easy to understand ❤
It doesn't make sense that an asteroid would be powerful enough to wipe out large mammals in every corner of North (and South) America without a similar and noticeable impact on Europe and Asia. There has to be some evidence of that elsewhere on the planet for this hypothesis to hold up. Analogizing to the dinosaur event just makes the point.
@jholt03
15 minutes ago
The scientific community is too hung up on finding a crater. If it was a flurry of impacts emanating from the disintegrating progenitor of Comet Enki, as some have proposed, the Earth could've been hit dozens of times, over hundreds of years by fragments far larger than Tunguska, and there would never be a crater, not only because the impact(s) may have occurred over an ice sheet, or the oceans for that matter, but mainly because as they enter the inner solar system, low density, frozen comet fragments are travelling so much faster than asteroids, the explosions would have occurred upon impact with the atmosphere, miles before they could ever reach the ground.
Climate change is the blame all term these days, but as stated in the video, these animals had survived through many cycles of warming and cooling that happened just as rapidly if not more-so than any climate changes at the end of the last glacial maximum, or that's going on today. The over hunting hypothesis is utterly ridiculous. The overall biomass of just the herbivories would have been many hundreds of thousands of times more than the limited human population at the time of these extinctions. Plus thanks to the footsteps at White Sands New Mexico and many other pre-clovis sites, we know now that humans had been in the Americas for at least 10,000 years before Clovis, so there goes the "naive prey" idea. Another point is that the Clovis culture came to a sudden end right along with the mega-fauna extinctions, suggesting they were nearly wiped out as well. An impact or series of impacts makes the most sense to me.
Has the southern hemisphere ever experienced an ice age effect?
@4:56 It shows movie poster of a movie which was released in 2001. Please get some new video footage from India :D
The documentary is about fifteen years old.
OPPENHEIMER?!?!?!?
Regarding the 'Clovis Line', shouldn't human remains also be found at that level? An asteroid strike wouldn't just kill the megafauna.
"Clovehitch" killer remains were found instead...
You know that there was more than just a meteorite that caused the extinction of the dinosaurs, right?
Right. Dinosaurs didn't exist after it struck
Who else is high?
I am I am!
Spaced out
Lmao shit
Does drunk and wanting to sleep count?
@@simplyhuman3982 I would say no since high usually means the opposite of feeling sleepy.
Glacier ice is metamorphosed ice. Much denser than your standard ice.
I don't believe that the layer of ice that was used was representative in the impact experiment, it would represent many miles thick if it were scaled up and the red layer of dust which represents the Earth's crust would be many miles thinner than it actually is, wouldn't it? The crust layer should represent a thickness of 35 - 43 km, and the ice had a thickness of 3 - 4 km on average. That ice sheet that he used was way too thick...by several kilometres.
The only problem with that theory, is the Earth is warming,and the glaciers are meting, so an ice age isn't likely unless we stopped using pollution causing autos that rely on gas, or we stay and work from home(when we can), or go electric,or better yet, we use bicycles,walk,ormake one trip.Instead of going straight home after work,you need say milk,bread, eggs, whatever, go from workto the store THEN gohome
... Well, if the Yellowstone Super Volcano is the " most famous of them all " this is ONE area where America is more than welcome to be NUMBER ONE ! ... 🇺🇸 🥰 🇺🇸🥵😶🌫
So, i thought this was supposed to be about a volcano?.........
Fire and Ice don't mix. So there was either no fire or a massive flood
Hello...anyone there...brainless
And also, there are 2 possible impact spots in the US that match the impact model giving by the projectile impact experiment.
If the icewas a mile thick, there would be no mega mammals for an astroid to kill
This video is quite old. The computer monitors are almost all CRT not LED. The clip of Professor Bill McGuire shows a much younger man than Bill's current age of 70.
CRT? WHAT?? 70?? You must be a hybrid invention.
... To paraphrase George Carlin ... The PLANET will be just fine ... WE are going away ...
However the supervolcano that is bigger than Yellowstone and toba is in Colorado called the La Garita Caldera.
True but that one is extinct I believe
As a soon to be extinct walking Mammal hybrid ..I worry for the sentient Plants that will overtake the Australian outback over the next 400 years
listen guys there is a location called the bleeding ice caused by rust duh
How did all that material accumulate above the Clovis layer imsidethat cave?
Title is misleading as this is more about calamity from space and hubris of humanity. The first 12-15 minutes are about the title subject. ☹
"humans had now made it through a super eruption and an ice age, the risk of another disaster SEEMED remote..." Lol to whom?
If the yellow stone is going to erupt, why not start making neighborhood greenhouses so we can survive?
I love how the scientists are using SI units, like kilometre and celsius. You'd expect nothing less. It's a real pity the narrator didn't do the same. I mean, how confusing and unprofessional, using two different systems of measurement, on a science documentary.
How long do we exist, no one knows, but there is an end
We exit, not exist.
It's my understanding that the human race went through a population bottleneck about 70-80 thousand years ago, that reduced the entire human population worldwide to about 2-10 thousand people. Could this have been caused by the Toba eruption?
Yes
I can't see disaster in Montreal as anything but a win.
Yellowstone won’t ever erupt again even if it does it won’t be in our life times lmao
in the beginning there you missed many many many many many many freezes and thaws and there was much much more than one asteroid Extinction