I made a follow up to this video explaining more: kzclip.org/video/eB3DJtQZVsw/бейне.html These cycles have little to do with the global warming debate. These cycles occur of hundreds of thousands of years and is unrelated to any changes over the past century. Please see my follow up video.
@Bryan Ray this clip shows root causes in a very simple fashion, the one you suggest actually shows simplified geophysical effects which are ultimately intitiated by some of the astrophysical variations explained in this clip... your suggested clip would actually benefit if cut down a lot and something such as this clip is added to the beginning, as combined they show a simplistic overview of the important factors
Excellent video. As a kid, I've always wondered about the tilt and orbit paths of the Earth relative to the Sun, but never knew the effects changed and interacted with each other!
Very interesting, thank you. I saw a documentary where someone was studying ice ages - on [I think] Barbados! Every time the sea level dropped, a new layer of coral was exposed and died, and a new coral reef began to grow further down. The age of each coral terrace could be dated, and they matched the Milankovich Cycle very closely
Most living things can adapt easily to changes like this that occur over a time scale of tens of thousands of years. The problem today with man made climate change is that the changes are coming just since the industrial age, not even two hundred years ago. And only a very small proportion of the natural world can make changes that quickly without dying out first.
@GordoGambler - It was one of the episodes of Earth Story with Aubrey Manning, made by the BBC I tried searching for this particular episode but you know what YT's like for giving you everything BUT the exact title you searched for! Not that Google's any better. The series is worth watching if you can find it
This is one of the best narrators. It's very concise in answering this question. It would be good with examples of the three cycles and how they affected human evolution and spread over Earth. We can also factor in some irregular things like solar outbursts and meteors - that may have interfered with the cycles.
@Hito Hito Fruit Model: Reaper Scientist had known this since 1938. The scientific article that describe it "The Artificial Production of Carbon Dioxide and its Influence on Temperature" It is still remarkable accurate. All that it predicted has come to pass
@Hito Hito Fruit Model: Reaper First off I'm not attacking religious people I'm attacking their religion and secondly the time for respectful silence when it comes to religious bullshit is over and it's time to call religion out for what it really is. As for willful ignorance sorry my friend but when someone says that evolution does not exist because they want to believe in creation that is willful ignorance at it's best, when someone says the planet is only 6000 years old because that's what their holy book says then that is willful ignorance. It is that willful ignorance that is childish and stupid. That's funny because there is absolutely nothing showing that a god has an impacted on anything either. Cheers! Edit: Oh and yes claiming that the earth is flat is also willful ignorance.
@kosys lol way to be a child and attack religious ppl. Amazing how you can't just so,ply disagree no you have to it to insults as usual. And willful ignorance is blindly accepting what your told without question. There is absolutely nothing showing we are having an impact on the weather.
@iroulis Maybe that has to with the fact that in the beginning of the earth's birth, it was constantly collilding and being bombarded & now that these high energy impacts are starting to "cool" off, so is the earth. In the very beginning, earth was the fireball earth. Also, I wonder what impact the changes in the earth's core over time will have on the earth.
Sun is a major factor for Earth. As we have seen the magnetic poles shift, we will be experiencing a lot of changes and events in the 2030’s-2040’s due to the Sun. Have a peep and listen to Ben Davidson.
Hey! Amazing video, great for the exam I have coming up tomorrow! Could you maybe explain also the effect of the time lag in the melting of ice and how that might exacerbate cooling? Does it influence the start/ending of ice ages, or does it play more into how often ice ages occur?
I just learned so much in this 6 minute video , it was hard for me to make sense of it all . Kind of makes my brain hurt as well just thinking about how the slightest bit of things can cause such a big impact and just thinking about how fragile earth and life is and how lucky we are to be alive . Idk just crazy to think about. And god bless scientists and smart people who figured a lot of this stuff out 😂
Such a clear explanation with great graphics- wonderful - instant subscribe! As a young geology student in the 90s I was captivated by a talk I heard by Dr Brad Pillans about Milankovitch Cycles and sea level change and its effect on a tectonically uplifting landscape - creating so called marine terraces. Good examples of these are found in Whanganui and northern Taranaki provinces, as well as other areas in NZ. Yes, Ice Ages and warm periods are natural, but they happen on timescales significantly longer than human civilisation to date. For the first time ever, the Anthropocene is upon us.
That is what people like you want us to believe. Our influence on that climate changes are very small, infact I doubt our behavior has any significence at all.
Interesting and well done but it would have been much more interesting if you had explained exactly where we are currently in each of the three cycles.
@Patrice Ferguson technically were still in an ice age actually since we still have ice caps. We have yet to go through a major heating period. That is just starting
One thing you didn’t mention is atmospheric conditions due to volcanic eruptions, such as this years Tonga eruption resulted in record floods never seen before. 3 record flooding events in 8 months. And that’s just in Australia alone. This has an impact on temperature, which in turn affects when the next ice age will come.
@Ron Schlorff : Of course you must factor in your surroundings also. Horses most likely in the USA, but in Africa you might want to think Zebra, or other herds of hoofed critters.
3.3 million views and only 50K likes? Come on people, it’s not hard to hit the like button to support these types of programs on KZclip. Not a KZclipr myself but you got to feel for these guys who put in so much work to make these videos!
it’s a good chance that this happened. but IMO we evolved for the last 10,000 years, left earth in search of powerful elements, found them, came back, made the moon and now we can control the tilt of earth and keep everything in balance
Best thing, advice & wisdom I've heard you share. And you're full of amazing perspectives and wisdom! Always leading with empathy and compassion regardless of the pursuit.
Please share this video as much as you can people! This is a very good explanation what’s going on! Please do! We need to start planting more trees and lower the carbon exhaust! We are the generation that could kill our existence and maybe that from the beautiful earth.
This is really an excellent classic! Congratulations to the author(s). It was just reposted on FB by FOP, so being a fan, and subscriber, I reposted on my FB page. Happy New Year to all!
@King James Bible. M.O.R. You can watch live ISS streams. They have windows that show the earth. It's pretty easy to see real, unedited live video of the Earth from space.
You correctly say that the extreme climate changes have been happening for 100s of thousand of years. But the Earth is billions of years old. It seems that continental drift has greatly increased the effect of the Milankovic cycles over the past million or so years by closing off the Arctic Ocean from the Pacific Ocean, cutting off warm currents from the Pacific, and allowing the Arctic Ocean to almost totally freeze over in winter. This ice mostly stays for well past June when solar radiation is strongest in the Arctic, thus delaying land temperatures from rising and melting winter snow cover. It is currently quite an unstable system, and the modest Milankovitch effects can have major consequences.
@Dominant Wolf I would add that CO2 is not even particularly important greenhouse gas anyway, that spot takes water vapour by a very large margin, followed by methane, however CO2 is a `life's fertilizer` it being plant food, thus helping all life to flourish. The net-zero agenda is insane and it's important to resists it will all means necessary - presenting facts is a good start.
An even bigger factor must be ocean currents, and the sudden/gradual changes to them. Take the breaking of the Gibraltar strait that refilled the mediterranean sea. THAT must have had huge impact on the golf stream and other major weather patterns for europe/sahara and the world. How well does the mediterranean ocean-cycle coallate with northern europes gletchers?
It's not so much a question of the heat capacity but primarily a question of the mechanism of heat transport. On solid ground it is heat conduction where as on water you have convection. Convection can be magnitudes more efficient transporting heat from deeper layers to the surface thus preventing the formation of ice. Else from this: Great video and very well explained !
This is an (unusual) almost clean sensible thread with only one troll-idiot so far. As correctly pointed out, snow can stay permanently on land through spring & summer (so permanent for millennia) and can build up and pack down into ice for millennia with a suitably-cool spring & summer, but can't do that on the ocean for 3 reasons. - Thermal capacity of water (heat content per cubic metre) is about double that of moist soil. - Water is more fluid than soil & rock (water flows a lot faster than soil) so the wind blows water around and mixes it and won't let its surface cool by 35 degrees or some such over just 6 months like happens each year with high-latitude land surface. - Ocean is salty so the snow melts at -1.8 degrees instead of 0.0 degrees.
I'm glad there's an actual named hypothesis and theory regarding this phenomenon. I've been talking about this for years, and people have been looking at me like I'm crazy.
I have something important to say. I got all mixed up in this when I really didn't want to. And I just wanted to say that I apologize for anything I might have said to offend anyone or escalate a situation that I know literally nothing about. I hope you all can except my most sincerest apologies.
@DJosh I've been having issues replying to you for some reason. There was a 2017 paper by Keeling et al titled "Atmospheric evidence for a global secular increase in carbon isotopic discrimination of land photosynthesis". It provides a good overview in the introduction section that should help you familiarize yourself with the issue.
Multiple factors, makes sense. I would like to see this on a related to average temp chart showing us where we are in the cycle. Also, curious why the news only talks about one factor, C02. Which I agree is a factor but also agree it is not the only factor.
Because of the its magnitude. These natural cycles take centuries and centuries to occur; what humans have done in a little over a century is unprecedented and absolutely dwarfs these cycles. Secondly, in these natural cycles, a small temperature change causes a small change in CO2, which builds up to starting/ending ice ages. Man caused climate change is the opposite - we've dumped gigatons of CO2 in to the air and this is causing the warming we're seeing. However, the earth is a giant system. Like a boulder, it doesn't move instantly.
Thank you so much for this video, I had a lot of trouble understanding what the precession was until I saw the animation and the way you explained this made it clear!
@Rumford C 1 Corinthians 15:40-41 40 There are also celestial bodies, and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is another. 41 There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory.
Except 13k years ago there was a massive asteroid impact in Greenland was carved mountains through the middle of north American and drowned Egypt in its sand we see today. The last ice age was caused by the enormous amounts of physical ice and water that went into the atmosphere and a temporary sun block from the impact of the rock.
While covering about the evolution of life and especially the Snowball earth I kind of experienced this pattern, but this fact was hard to engulf that greenery gave us so many ice ages, this cements the fact that excess of everything is bad....
Another two ways ice ages happen are: 1. Decreased solar flares and activity. We are currently in an increasing amount of activity. 2. Shifting of the magnetic North Pole. It is currently shifting quite a bit and could become a problem.
@grindupBaker so solar flares have NO effect on the earth?The magnetic field has NO effect on the planet? The planet’s core has NO effect on the environment of the earth? You do realize that earth is NOT the center of the universe and it isn’t flat. Not sure what you’re on but you’re not sharing.
Wouldnt tectonic activity play an effect on climate change or an ongoing ice age? Would either of them affect each other, like increased tectonic activity changing the tilt of earth, causing more extreme temperature changes between seasons, or vice versa?
On top of that, the Earth’s oceans and ocean currents have a significant effect on temperatures in the temperate zones. At one time, North America and Europe’s climate was much, much colder than today because North and South America were not connected by land. Instead of the Atlantic Ocean’s warm water current traveling up South America, into the Caribbean and up towards the North Atlantic, the current travelled around the northern part of South America into the Pacific Ocean. Without these warm water currents, large parts of both North America and Europe were frozen over with ice year round.
Very good video. Worth keeping in mind that the atmosphere can trap more heat as a function of IR-active gas volume. Gases absorbing infrared light re-emit them in all directions, causing a loop (trapping them partly), instead of the radiation being reflected back into space. This doesn't directly have to do with ice ages, but thought it'd be a good idea to mention it as some may have come to the wrong conclusions in the comment section.
Yeah, i see a lot of climate warming deniers be conforted in their denial, sadly, although these cycles have nothing to do with the current problem, which is happening way too fast to be natural whatsoever
This is exactly what I was wondering about at 4 AM (ice ages and interglacial periods), and now it's in my reccomendations. Thanks for the informative and exceptionally well-animated video.
The best explanation of the Milankovitch cycles I have heard. The previous interglacial was the result of a more coherent alignment of the cycles producing a warmer climate.
Everyone should look at the ice core samples they go back a lot farther than 200,000 years. You will notice that it's never been warm for 6000 years like it has been this time but some of the hot peaks have even been hotter than it is now. But this is very interesting and needs more to look into.
The Milankovitch Cycles started about 3 million years ago, and are still happening. We have been in an ice age for 15 to 20 million years, since the re-glaciation of Antarctica. People tend to call Glaciation Periods "Ice Ages", but they are just fluctuations within the current ice age. We currently have ice caps on both poles, definitely in an ice age, right now. We are at the top, or warm part of a Milankovitch cycle, called an Inter-glacial Period. It gets warm for 10,000 - 20,000 yrs or so, and then the cycle gets cold for 100,000 yrs. The cycles used to be much shorter and less extreme in temperature change, and had 40,000 yrs of cold. Now it is about a 100,000 yrs of cold.
@Dave Lawnicki I have the DEEP OCEAN EXPLORATION chart that shows precisely what global temperatures were up to 60 million years ago. The deep ocean core samples show a history of earths earthy atmphere through proxy measurements.
@Paul B never said that a natural event couldn't make that can change the climate in a day. I'm saying that there hasn't been a cataclysmic event and scientific evidence points towards humans altering the climate.
@lambo6012 it has happened suddenly before. One impact or super-volvanoe can change the climate in ways humans couldn't dream of, in one day. And that has happened more often then you've been taught to think. "Gradualism" is, I'm sorry to say, a bit of an old fashioned notion, they're finding. At least, unbroken, never-ending, pure "Gradualism", at any rate. It's actually a preposterous idea, to say "everything only ever happens slowly/gradually"....or to say "nothing has ever acted on nature as quickly as we have in the last 200 years".
This 6 minute video taught me more than school although id probably forget it in 5 minutes but at least i dont forget it in seconds like i do at school.... god that homework is still terrorizing me
It’s too complicated to explain in a few paragraphs exactly when the next ice age will begin. However my extensive calculations point to about 11500 years to go before the next ice age. I can also say with a 99.999 degree of confidence that almost every human alive today will be dead in the next 120 years😊
The younger dryas also has considerable data showing a cometary impact or multiple impacts around the 13000-11000 year marks. Which caused the end of that warming period , short ice age, and then melting again. Milankovich cycle along isn't enough to explain the younger dryas
Dear sir, Thank you for making at least 2 million people aware of the Milankovitch cycle. It's not that commonly known. Except by the scientific community. Thank goodness the earth, currently, is farther away in the summer and closer to the sun in the winter. Without that the climate would be more extreme. We're already having enough extreme weather across the globe. Keep your woollies handy. The next ice-age is inevitable. We just don't know when.
@Orion625 typed "I'm curious what the other variable, CO2 in the atmosphere, does to this cycle. What if our CO2 emissions are actually offsetting the next ice age?" Yes. Of course humans can at present set Earth's average temperature wherever "they" want it within quite a large temperature range so as long as "they" want it too warm for a glaciation period (colloquially "ice age") they can do that and warming Earth just happens to be dirt cheap (cooling Earth is some orders or magnitude more expensive than warming Earth). The issue, almost certainly insurmountable, is that there isn't any "they", there's only "me" and "the rest of you arse holes" because competition to the death is the SOLE purpose of Life. As a matter of fact, right now there's a classic example that most humans have likely noticed going on in some land area humans call "Ukraine" (but some humans call it "Russia"). However that's just 1 trivial example of what's universal for Life and always will be. This is why the subtle, pithy "darugdawg" above typed "You cant test it because of well, time" in response to this thread start of "The next ice-age is inevitable". It's because there's a sub-minuscule but non-zero chance that the human brain will somehow alter by mutation from its basic condition, barely evolved from slime, to something that scrapes by the skin of its teeth past global thermonuclear war and whatever worse technologies they manage to find, and keeps societies with enough technology to set GMST where their experts decide it's most convivial for present Life and then simply holds it there for millions of years, so then no "next ice-age is inevitable". The pithy "darugdawg" above was a human future brain development statement and not at all a statement about the (obviously correct) glaciation period cause. Has to be said though that the possibility that humans will avoid wiping out themselves and all large-bodied Life on Earth for millions or billions of years is almost non existent.
@Davidian 77 sure, but we can actually effect the climate on Earth, we can't effect the sun. In in ideal situation, it would not be impossible for humanity to control the climate enough to prohibit a future "ice age" until the sun grows strong enough to solve "that issue" for ever.
@snuffeldjuret Well there have been a lot of cooling and warming periods. Do you doubt the sun will rise tomorrow? Or that gravity is a thing? There will be more ice ages as there were before.
Interesting that earth is currently at or near the mean tilt of 23.5 degrees and heading toward the lower extreme of roughly 20-21 degrees. So the trend, as regards the Milankovitch cycle, is toward less extreme seasonal changes in the future. Maybe a reason for hope.
Milankovitch is probably ahead in genius to Einstein who was by his own admission standing on the shoulders of giants and second only to Boole who suggested logic gates in the mid 19th century.
To add to this, All of the planets affect each other, like the moon affects the oceans ( Gravity ). If each individual planet is in it's own cycle, It affects other planet alignment's down the line. I wonder what the effects of each solar system & stars have on the next system. Mind blown.
Reading through the comments, I saw a couple of salient points that add to this effect that I also want to reiterate. The effects of the solar maximum and minimums, grand solar minimum in particular, and the effects of volcanic eruptions, especially those like the Toba eruption in Indonesia 74k years ago, and eruptions like Yellowstone, would have a major impact, but even eruptions like Mt.St . Helens and Mt Pinatubo had recently recorded effects on a global scale. Krakatoa was another major one that produced "the year without a summer". Grand Solar Minimum like the Maunder Minimum that produced the "Little Ice Age" between the 17th and 18th centuries should be considered too. This is an excellent explanation of yet another major factor in the natural, uncontrollable cycle of climate. Great video!
"Krakatoa was another major one that produced 'The year without a summer'" That was actually the eruption of Mt. Tambora in 1815 which caused the summer of 1816 to be unusually cold. Krakatoa erupted (and completely obliterated itself) in 1883, and the volcanos we see there today are what was left after the eruption.
Adam Davis: Hate to be pedantic on a good post, but I thought that the "year without summer" was in 1816 after the massive Tambora eruption in Indonesia in 1815. Although Krakatoa may have been the more violent eruption, in terms of material and ash put into the atmosphere, Tambora was far, far higher and had a much larger effect on global weather than did Krakatoa. In 1816 crop failures were reported in N America, Europe and other parts of the world. Even at more northerly latitudes such as the UK, in the summer of 1816, sunsets were marked by the sun turning blood red due to atmospheric contamination!
it is important to note that those aren't the only factors that created ice ages in the past. the composition of the atmosphere and the distribution of the continental landmasses also caused major ice ages. large impact or vulcanic events (like flood basalts or extreme plinian eruptions) where able to alter the atmosperes reflective capabilities enough to block the sunlight and cause nuclear winters over large time periods. the distribution of landmasses is even more interesting. a larger concentration of continental landmass near or at the poles means that ice ages are more likely to happen and stay for longer, since the difference in albedo between land and ice is much bigger than the difference between water and ice. depending on the location of the continents the ocean currents also vary. and we have two wonderful recent examples on how they impact the earths climate: the gulf stream in the north, and the circumpolar current in the south. the gulf stream transports heat from tropical regions towards the poles and effectively acts as a barrier against (possibly) advancing ice masses, while the cold antarctic circum polar current is isolating the south pole from the warmer regions in the north, creating a positive feed back loop (due to albedo) that regulates the earths climate and keeps the southern ice masses intact. we have the luxury to live in a comparatively super stable time period regarding the earths climate. i hope humanity manages to not bork it up somehow. we are pretty good at destroying stable environments after all :)
I often tell people, that we are nearer to the sun, in winter (northern hemisphere). We are always in an ice age, the current one began at least 2.5m years ago, Pleistocene it's known as, we are technically still in it, as the polar ice is retreating. There will be no interval as we begin the next ice age, so yes we're always in an ice age.
I'm glad this was uploaded and very clear. I was trying to understand something regarding this earlier, great timing, thank you! Good recommendation for me.
I made a follow up to this video explaining more: kzclip.org/video/eB3DJtQZVsw/бейне.html
These cycles have little to do with the global warming debate. These cycles occur of hundreds of thousands of years and is unrelated to any changes over the past century. Please see my follow up video.
Yo
Duh...
Im.sure the chemtrails aren't helping they're causing this extreme cold
Don’t let this man trick you we all know that damn squirrel has something to do with it
You're a hundred percent correct
The day the squirrel went berserk,🎶
Best comment this year award goes to..
Best explanation I have found for this topic, easy even for a layman like me . Thanks 🙏🏻
@Bryan Ray
this clip shows root causes in a very simple fashion, the one you suggest actually shows simplified geophysical effects which are ultimately intitiated by some of the astrophysical variations explained in this clip...
your suggested clip would actually benefit if cut down a lot and something such as this clip is added to the beginning, as combined they show a simplistic overview of the important factors
Watch the story of the earth in 33 minutes
Are you sarcastic or serious? lmao
Excellent video. As a kid, I've always wondered about the tilt and orbit paths of the Earth relative to the Sun, but never knew the effects changed and interacted with each other!
Very interesting, thank you.
I saw a documentary where someone was studying ice ages - on [I think] Barbados! Every time the sea level dropped, a new layer of coral was exposed and died, and a new coral reef began to grow further down.
The age of each coral terrace could be dated, and they matched the Milankovich Cycle very closely
@GordoGambler yes ocean water levels can rise and with ice ages and hot house earth conditions
Most living things can adapt easily to changes like this that occur over a time scale of tens of thousands of years. The problem today with man made climate change is that the changes are coming just since the industrial age, not even two hundred years ago. And only a very small proportion of the natural world can make changes that quickly without dying out first.
@GordoGambler - It was one of the episodes of Earth Story with Aubrey Manning, made by the BBC
I tried searching for this particular episode but you know what YT's like for giving you everything BUT the exact title you searched for! Not that Google's any better.
The series is worth watching if you can find it
Oh, never heard that before.
Excellent vid. Explains the phenomenon to the point without not needed diversions. Plain and simple. Thank you.
This is one of the best narrators. It's very concise in answering this question.
It would be good with examples of the three cycles and how they affected human evolution and spread over Earth. We can also factor in some irregular things like solar outbursts and meteors - that may have interfered with the cycles.
That's one of the best presentations I've seen on this topic.
Just plain and easy to understand info.
Thanks.
I understood it perfectly fine 😁
@Phil I can understand the variables but what I don’t get, is... how did this Milankovitch fella know about them for certain?
@Hito Hito Fruit Model: Reaper
Scientist had known this since 1938.
The scientific article that describe it "The Artificial Production of Carbon Dioxide and its Influence on Temperature"
It is still remarkable accurate.
All that it predicted has come to pass
@Hito Hito Fruit Model: Reaper
First off I'm not attacking religious people I'm attacking their religion and secondly the time for respectful silence when it comes to religious bullshit is over and it's time to call religion out for what it really is. As for willful ignorance sorry my friend but when someone says that evolution does not exist because they want to believe in creation that is willful ignorance at it's best, when someone says the planet is only 6000 years old because that's what their holy book says then that is willful ignorance. It is that willful ignorance that is childish and stupid. That's funny because there is absolutely nothing showing that a god has an impacted on anything either. Cheers!
Edit: Oh and yes claiming that the earth is flat is also willful ignorance.
@kosys lol way to be a child and attack religious ppl. Amazing how you can't just so,ply disagree no you have to it to insults as usual. And willful ignorance is blindly accepting what your told without question. There is absolutely nothing showing we are having an impact on the weather.
Incredible. All these forces, centrifugal, orbits, interactions between planets. I imagine Sunspot activity also plays a role. Great video.
@iroulis Maybe that has to with the fact that in the beginning of the earth's birth, it was constantly collilding and being bombarded & now that these high energy impacts are starting to "cool" off, so is the earth. In the very beginning, earth was the fireball earth. Also, I wonder what impact the changes in the earth's core over time will have on the earth.
Sun is a major factor for Earth. As we have seen the magnetic poles shift, we will be experiencing a lot of changes and events in the 2030’s-2040’s due to the Sun. Have a peep and listen to Ben Davidson.
Most likely. Video doesn't mention the Pink Elephant in the room:
Ice Ages only began 2.4M years ago.
Why did it start to begin with.
No
Hey! Amazing video, great for the exam I have coming up tomorrow! Could you maybe explain also the effect of the time lag in the melting of ice and how that might exacerbate cooling? Does it influence the start/ending of ice ages, or does it play more into how often ice ages occur?
How did the exam go?
Awesome information. I learned more from this short video than I have from much longer videos. Great job, putting this together
I just learned so much in this 6 minute video , it was hard for me to make sense of it all . Kind of makes my brain hurt as well just thinking about how the slightest bit of things can cause such a big impact and just thinking about how fragile earth and life is and how lucky we are to be alive . Idk just crazy to think about. And god bless scientists and smart people who figured a lot of this stuff out 😂
You're welcome 👍
Such a clear explanation with great graphics- wonderful - instant subscribe! As a young geology student in the 90s I was captivated by a talk I heard by Dr Brad Pillans about Milankovitch Cycles and sea level change and its effect on a tectonically uplifting landscape - creating so called marine terraces. Good examples of these are found in Whanganui and northern Taranaki provinces, as well as other areas in NZ. Yes, Ice Ages and warm periods are natural, but they happen on timescales significantly longer than human civilisation to date. For the first time ever, the Anthropocene is upon us.
@dj1rst Believe what you want, your opinions make no difference to me!
That is what people like you want us to believe. Our influence on that climate changes are very small, infact I doubt our behavior has any significence at all.
Interesting and well done but it would have been much more interesting if you had explained exactly where we are currently in each of the three cycles.
@Jimjr69 cough cough
@Patrice Ferguson technically were still in an ice age actually since we still have ice caps. We have yet to go through a major heating period. That is just starting
@Stephen Turner 🤣🤣🤣🤣
So well presented and so interesting I did not want it to end so soon!
At least KZclip is always here to educate people that couldn’t go to college. We need more of this for the masses.
yall not missing anything, watching this video and some others was my "reading" homework for my college astrobiology class this week
Why do you think this will be in Universities?
@Danilo Giusti wat wat?
KZclip University
One thing you didn’t mention is atmospheric conditions due to volcanic eruptions, such as this years Tonga eruption resulted in record floods never seen before. 3 record flooding events in 8 months. And that’s just in Australia alone. This has an impact on temperature, which in turn affects when the next ice age will come.
Truly an excellent presentation on a very interesting topic. By far the best I have ever seen. By far!
Wow this was a wonderful video. Had all the answers to my questions and did it fast. Thank you for increasing my knowledge
Your videos are so damn clear and easy to follow. High density of learning/connections per minute. Make more!!!
Trump and his cult of followers reject this video!! Trump makes up his own science.
@KUZIN V KNEE ! ! Great point, and if in Yellowstone park, and you hear thundering hoofbeats, coming your way; watch out!! Bison (aka Buffalo)!! :D
@Ron Schlorff : Of course you must factor in your surroundings also. Horses most likely in the USA, but in Africa you might want to think Zebra, or other herds of hoofed critters.
3.3 million views and only 50K likes? Come on people, it’s not hard to hit the like button to support these types of programs on KZclip. Not a KZclipr myself but you got to feel for these guys who put in so much work to make these videos!
If he'd said that anthropogenic CO2 is to blame for ice ages, he'd have 50k views and 3.3 million likes. Gotta love the propaganda algorithm.
Cry
The scary part is that this is a non stop cycle. That means humanity could have gotten wiped out over and over.
@James Hilton to create a new force of working humans to rebuild the planet
@Norcal Ballin so really askin here what or why do you think humans started over
it’s a good chance that this happened. but IMO we evolved for the last 10,000 years, left earth in search of powerful elements, found them, came back, made the moon and now we can control the tilt of earth and keep everything in balance
@austin bevis we will destroy our selves
If only all of the videos on climate were as clear and rational as this one. Excellent.
Best thing, advice & wisdom I've heard you share. And you're full of amazing perspectives and wisdom! Always leading with empathy and compassion regardless of the pursuit.
👍
Please share this video as much as you can people! This is a very good explanation what’s going on! Please do! We need to start planting more trees and lower the carbon exhaust! We are the generation that could kill our existence and maybe that from the beautiful earth.
Ice Ages happen when a squirrel tries to protect its nuts.
Bruh NC joke
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😂😂😂😂😂😂😂
It’s winter 😮
Deeeeeeeezzz nuts
This is really an excellent classic! Congratulations to the author(s). It was just reposted on FB by FOP, so being a fan, and subscriber, I reposted on my FB page. Happy New Year to all!
Excellent. Very clearly presented. Thank you!
6:20 Excellent graph! I've been looking for such a representation for work. Thank you!
Excellent user-friendly “teaching” (and not just explaining) video. Sub’d.
Wow, it's like that 1 in a 1,000,000 videos on scientific topic that is actually made to be understandable! Thanks a lot!
Because it's true. It's when the speakers try to shoehorn a big line of nonsense into a script that they loose the audience.
Wow! Perfectly clear, excellent graphics, informative message. What else could you ask for? Thank you!
@King James Bible. M.O.R. You can watch live ISS streams. They have windows that show the earth. It's pretty easy to see real, unedited live video of the Earth from space.
@pyroxide Climate Change is not about religion, its about Physics and Thermal Dynamics and some Chemistry with the relation of co2 emissions.
@Jonty Chatterjee This is the problem you get when Christians read the Bible literally rather than metaphorically as it was intended to be read.
@Jonty Chatterjee Pillars all the way down lol
You correctly say that the extreme climate changes have been happening for 100s of thousand of years. But the Earth is billions of years old. It seems that continental drift has greatly increased the effect of the Milankovic cycles over the past million or so years by closing off the Arctic Ocean from the Pacific Ocean, cutting off warm currents from the Pacific, and allowing the Arctic Ocean to almost totally freeze over in winter. This ice mostly stays for well past June when solar radiation is strongest in the Arctic, thus delaying land temperatures from rising and melting winter snow cover. It is currently quite an unstable system, and the modest Milankovitch effects can have major consequences.
@Dominant Wolf I would add that CO2 is not even particularly important greenhouse gas anyway, that spot takes water vapour by a very large margin, followed by methane, however CO2 is a `life's fertilizer` it being plant food, thus helping all life to flourish. The net-zero agenda is insane and it's important to resists it will all means necessary - presenting facts is a good start.
@Dominant Wolf Naw! Find my comment to Jordan H. YOU don't know what you are saying. Really!
Great video. People really are sooo smart. That fact that figured this out is just amazing!
An even bigger factor must be ocean currents, and the sudden/gradual changes to them. Take the breaking of the Gibraltar strait that refilled the mediterranean sea. THAT must have had huge impact on the golf stream and other major weather patterns for europe/sahara and the world. How well does the mediterranean ocean-cycle coallate with northern europes gletchers?
I physically needed to see this video.
It's very well presented too so thank you for that information.
How else would you see the video?
Very interesting, very well done too. Congrats !👍
It's not so much a question of the heat capacity but primarily a question of the mechanism of heat transport. On solid ground it is heat conduction where as on water you have convection. Convection can be magnitudes more efficient transporting heat from deeper layers to the surface thus preventing the formation of ice. Else from this: Great video and very well explained !
This is an (unusual) almost clean sensible thread with only one troll-idiot so far. As correctly pointed out, snow can stay permanently on land through spring & summer (so permanent for millennia) and can build up and pack down into ice for millennia with a suitably-cool spring & summer, but can't do that on the ocean for 3 reasons.
- Thermal capacity of water (heat content per cubic metre) is about double that of moist soil.
- Water is more fluid than soil & rock (water flows a lot faster than soil) so the wind blows water around and mixes it and won't let its surface cool by 35 degrees or some such over just 6 months like happens each year with high-latitude land surface.
- Ocean is salty so the snow melts at -1.8 degrees instead of 0.0 degrees.
cold is the absence of heat .. simple .. DUH
@Juan 😂
Very well presented, easy to understand. Liked the video especially the presentation with explanation
I'm glad there's an actual named hypothesis and theory regarding this phenomenon. I've been talking about this for years, and people have been looking at me like I'm crazy.
I have something important to say. I got all mixed up in this when I really didn't want to. And I just wanted to say that I apologize for anything I might have said to offend anyone or escalate a situation that I know literally nothing about. I hope you all can except my most sincerest apologies.
@DJosh I've been having issues replying to you for some reason. There was a 2017 paper by Keeling et al titled "Atmospheric evidence for a global secular increase in carbon isotopic discrimination of land photosynthesis". It provides a good overview in the introduction section that should help you familiarize yourself with the issue.
Multiple factors, makes sense. I would like to see this on a related to average temp chart showing us where we are in the cycle. Also, curious why the news only talks about one factor, C02. Which I agree is a factor but also agree it is not the only factor.
Because of the its magnitude. These natural cycles take centuries and centuries to occur; what humans have done in a little over a century is unprecedented and absolutely dwarfs these cycles. Secondly, in these natural cycles, a small temperature change causes a small change in CO2, which builds up to starting/ending ice ages. Man caused climate change is the opposite - we've dumped gigatons of CO2 in to the air and this is causing the warming we're seeing. However, the earth is a giant system. Like a boulder, it doesn't move instantly.
@smithologist bingo!
Because they can make money off of it.
Other important factors are volcanic activity, ocean current cycles (e.g., gulf stream variation) and solar cycles.
Thanks for the video. You explained it beautifully,without the usual narration rhetoric, so thanks for that, too.
Thank you so much for this video, I had a lot of trouble understanding what the precession was until I saw the animation and the way you explained this made it clear!
@Rumford C
1 Corinthians 15:40-41
40 There are also celestial bodies, and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is another. 41 There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory.
@Alan Warrick im not saying thats wrong or right, but why put stars in the firmament to begin with? what purpose do they serve?
@Alan Warrick are you delusional?
Wow. I did not know how complex this could be. Thank you very much. Great presentation. RS. Canada
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Thanks for the refreshment, good to re-educate yourself on old topics
I'm curious how much of an effect atmospheric composition has on global temperature versus the milankovitch cycle. Is the effect stronger or weaker?
Except 13k years ago there was a massive asteroid impact in Greenland was carved mountains through the middle of north American and drowned Egypt in its sand we see today. The last ice age was caused by the enormous amounts of physical ice and water that went into the atmosphere and a temporary sun block from the impact of the rock.
Great visuals. Well presented. Thank you
While covering about the evolution of life and especially the Snowball earth I kind of experienced this pattern, but this fact was hard to engulf that greenery gave us so many ice ages, this cements the fact that excess of everything is bad....
I am astounded by the absolute perfection of how our planet’s Goldilocks zone is maintained. Subtle changes to make all of the difference.
Another two ways ice ages happen are: 1. Decreased solar flares and activity. We are currently in an increasing amount of activity. 2. Shifting of the magnetic North Pole. It is currently shifting quite a bit and could become a problem.
@grindupBaker so solar flares have NO effect on the earth?The magnetic field has NO effect on the planet? The planet’s core has NO effect on the environment of the earth? You do realize that earth is NOT the center of the universe and it isn’t flat. Not sure what you’re on but you’re not sharing.
This is pure Knowledge and i love the way it was delivered
Wouldnt tectonic activity play an effect on climate change or an ongoing ice age? Would either of them affect each other, like increased tectonic activity changing the tilt of earth, causing more extreme temperature changes between seasons, or vice versa?
too many comfusing hypothesis and theories that take you on a infinite loop. 😁😁😁😁😁😁😁
@Aegis Raven Go look up snowball earth. I never said they were completely frozen, or even implied that.
@Robert C. Christian you're wrong. Water doesn't freeze under ice. Hence Europa. Educate yourself
Well you taught me something today I always thought that winter was because we were further away from the Sun not closer
On top of that, the Earth’s oceans and ocean currents have a significant effect on temperatures in the temperate zones. At one time, North America and Europe’s climate was much, much colder than today because North and South America were not connected by land. Instead of the Atlantic Ocean’s warm water current traveling up South America, into the Caribbean and up towards the North Atlantic, the current travelled around the northern part of South America into the Pacific Ocean. Without these warm water currents, large parts of both North America and Europe were frozen over with ice year round.
@Alan Warrick scripture evidence for that please?
Does that mean if dig out the land connecting the continents, we can solve global warming?
Thanks cookie monster
@black pearl don't forget about werewolves
Respect for brave scientists traveling through time to observe and document the ice age.
The animations of earth are fantastic !! Well presented information my 16 years of education never taught me. Thank you !
Testament to the education system now days.
Are these changes also taking in account possible impacts?
Excellent, I wish this included some data on the added effects of Solar Minimum or Maximums.
explained as clearly, simply and concisely as you'd explain how to trade or hodl cardano to aunt gertie. top notch
Very good video. Worth keeping in mind that the atmosphere can trap more heat as a function of IR-active gas volume. Gases absorbing infrared light re-emit them in all directions, causing a loop (trapping them partly), instead of the radiation being reflected back into space. This doesn't directly have to do with ice ages, but thought it'd be a good idea to mention it as some may have come to the wrong conclusions in the comment section.
Yeah, i see a lot of climate warming deniers be conforted in their denial, sadly, although these cycles have nothing to do with the current problem, which is happening way too fast to be natural whatsoever
Didn’t know that the 4th of July was important for another reason, I love this kind of content!
Just yesterday i was wondering for a video like this. And here it is. This is wonderful.
This is exactly what I was wondering about at 4 AM (ice ages and interglacial periods), and now it's in my reccomendations. Thanks for the informative and exceptionally well-animated video.
Best video ever !!! Learned so much !❤
The best explanation of the Milankovitch cycles I have heard. The previous interglacial was the result of a more coherent alignment of the cycles producing a warmer climate.
@Ложка Манки Pochka Mankee. That’s a lot of stuff to watch but will see what I can do.👍
@Jacob Yes it is different. Proportions of gases in the atmosphere is a red herring, the point is their effect (direclty and knock-on)
Everyone should look at the ice core samples they go back a lot farther than 200,000 years. You will notice that it's never been warm for 6000 years like it has been this time but some of the hot peaks have even been hotter than it is now. But this is very interesting and needs more to look into.
Amazing video! Kepp up the hard work :)
If there are periods of cooling and thus ice ages, then it is just as likely that periods of heating can occur like the one we experience right now.
In 6 minutes you explained this better than school teacher can in 6 days.
Best explanation I've heard. Congratulations!
The Milankovitch Cycles started about 3 million years ago, and are still happening. We have been in an ice age for 15 to 20 million years, since the re-glaciation of Antarctica. People tend to call Glaciation Periods "Ice Ages", but they are just fluctuations within the current ice age. We currently have ice caps on both poles, definitely in an ice age, right now. We are at the top, or warm part of a Milankovitch cycle, called an Inter-glacial Period. It gets warm for 10,000 - 20,000 yrs or so, and then the cycle gets cold for 100,000 yrs. The cycles used to be much shorter and less extreme in temperature change, and had 40,000 yrs of cold. Now it is about a 100,000 yrs of cold.
@Clime Aware I would love to see your hypothetical data. But it does not have any relevance because its hypothetical.
@Dave Lawnicki I have the DEEP OCEAN EXPLORATION chart that shows precisely what global temperatures were up to 60 million years ago. The deep ocean core samples show a history of earths earthy atmphere through proxy measurements.
@Paul B never said that a natural event couldn't make that can change the climate in a day. I'm saying that there hasn't been a cataclysmic event and scientific evidence points towards humans altering the climate.
@lambo6012 it has happened suddenly before. One impact or super-volvanoe can change the climate in ways humans couldn't dream of, in one day. And that has happened more often then you've been taught to think. "Gradualism" is, I'm sorry to say, a bit of an old fashioned notion, they're finding. At least, unbroken, never-ending, pure "Gradualism", at any rate. It's actually a preposterous idea, to say "everything only ever happens slowly/gradually"....or to say "nothing has ever acted on nature as quickly as we have in the last 200 years".
This 6 minute video taught me more than school
although id probably forget it in 5 minutes but at least i dont forget it in seconds like i do at school.... god that homework is still terrorizing me
It's really interesting, it's really simple, it's really informative
Very informative! thank you!
It’s too complicated to explain in a few paragraphs exactly when the next ice age will begin. However my extensive calculations point to about 11500 years to go before the next ice age. I can also say with a 99.999 degree of confidence that almost every human alive today will be dead in the next 120 years😊
Very good video! Got recommended this by a friend and I’ve subbed to the channel! Hope your day is going well.
Gosh, I like nice people in the comments section.
Im studying geography/ GIS and I gotta say you make great graphics and the information is clear. Great content!
Excellent video. The best I have seen yet about this subject.
The younger dryas also has considerable data showing a cometary impact or multiple impacts around the 13000-11000 year marks. Which caused the end of that warming period , short ice age, and then melting again.
Milankovich cycle along isn't enough to explain the younger dryas
It’s 4 am, I’m drinking beer and learning about our planet. Cool stuff
Drinking beer and watching You Tube, makes learning fun.
fitting profile picture
I would also add the affect of magnetic reversals. They seem to come up at the beginning OR end of an ice age.
That needs studying, for sure - I just don't have the time to investigate.
Thanks for explaining how seasons work, kinda knew that. When are you gonna explain the cycle and discuss ice ages?
An upload would be nice.
Dear sir, Thank you for making at least 2 million people aware of the Milankovitch cycle. It's not that commonly known. Except by the scientific community. Thank goodness the earth, currently, is farther away in the summer and closer to the sun in the winter. Without that the climate would be more extreme. We're already having enough extreme weather across the globe. Keep your woollies handy. The next ice-age is inevitable. We just don't know when.
@Orion625 typed "I'm curious what the other variable, CO2 in the atmosphere, does to this cycle. What if our CO2 emissions are actually offsetting the next ice age?" Yes. Of course humans can at present set Earth's average temperature wherever "they" want it within quite a large temperature range so as long as "they" want it too warm for a glaciation period (colloquially "ice age") they can do that and warming Earth just happens to be dirt cheap (cooling Earth is some orders or magnitude more expensive than warming Earth). The issue, almost certainly insurmountable, is that there isn't any "they", there's only "me" and "the rest of you arse holes" because competition to the death is the SOLE purpose of Life. As a matter of fact, right now there's a classic example that most humans have likely noticed going on in some land area humans call "Ukraine" (but some humans call it "Russia"). However that's just 1 trivial example of what's universal for Life and always will be. This is why the subtle, pithy "darugdawg" above typed "You cant test it because of well, time" in response to this thread start of "The next ice-age is inevitable". It's because there's a sub-minuscule but non-zero chance that the human brain will somehow alter by mutation from its basic condition, barely evolved from slime, to something that scrapes by the skin of its teeth past global thermonuclear war and whatever worse technologies they manage to find, and keeps societies with enough technology to set GMST where their experts decide it's most convivial for present Life and then simply holds it there for millions of years, so then no "next ice-age is inevitable". The pithy "darugdawg" above was a human future brain development statement and not at all a statement about the (obviously correct) glaciation period cause. Has to be said though that the possibility that humans will avoid wiping out themselves and all large-bodied Life on Earth for millions or billions of years is almost non existent.
rex69832 Un-quantified Science-free babbling you have.
@Davidian 77 sure, but we can actually effect the climate on Earth, we can't effect the sun. In in ideal situation, it would not be impossible for humanity to control the climate enough to prohibit a future "ice age" until the sun grows strong enough to solve "that issue" for ever.
@snuffeldjuret Well there have been a lot of cooling and warming periods. Do you doubt the sun will rise tomorrow? Or that gravity is a thing? There will be more ice ages as there were before.
@I will not eat ze bugs what do you base that claim on?
Interesting that earth is currently at or near the mean tilt of 23.5 degrees and heading toward the lower extreme of roughly 20-21 degrees. So the trend, as regards the Milankovitch cycle, is toward less extreme seasonal changes in the future. Maybe a reason for hope.
Milankovitch is probably ahead in genius to Einstein who was by his own admission standing on the shoulders of giants and second only to Boole who suggested logic gates in the mid 19th century.
To add to this, All of the planets affect each other, like the moon affects the oceans ( Gravity ). If each individual planet is in it's own cycle, It affects other planet alignment's down the line. I wonder what the effects of each solar system & stars have on the next system. Mind blown.
It's amazes that humans have figured this stuff out
Cool story bro. How did a mastodon get flash frozen? Food in it's stomach still intact. Could magnetic excursions have anything to do with it?
Reading through the comments, I saw a couple of salient points that add to this effect that I also want to reiterate. The effects of the solar maximum and minimums, grand solar minimum in particular, and the effects of volcanic eruptions, especially those like the Toba eruption in Indonesia 74k years ago, and eruptions like Yellowstone, would have a major impact, but even eruptions like Mt.St . Helens and Mt Pinatubo had recently recorded effects on a global scale. Krakatoa was another major one that produced "the year without a summer". Grand Solar Minimum like the Maunder Minimum that produced the "Little Ice Age" between the 17th and 18th centuries should be considered too. This is an excellent explanation of yet another major factor in the natural, uncontrollable cycle of climate. Great video!
@Adam Davis as shown in Netflix blockbuster Don't look up ... 😂🤣😂
Hi , check your information ! I think it was the eruption of Mount Tambora in 1815 that caused the subsequent " year without a summer"
"Krakatoa was another major one that produced 'The year without a summer'"
That was actually the eruption of Mt. Tambora in 1815 which caused the summer of 1816 to be unusually cold. Krakatoa erupted (and completely obliterated itself) in 1883, and the volcanos we see there today are what was left after the eruption.
Adam Davis: Hate to be pedantic on a good post, but I thought that the "year without summer" was in 1816 after the massive Tambora eruption in Indonesia in 1815. Although Krakatoa may have been the more violent eruption, in terms of material and ash put into the atmosphere, Tambora was far, far higher and had a much larger effect on global weather than did Krakatoa. In 1816 crop failures were reported in N America, Europe and other parts of the world. Even at more northerly latitudes such as the UK, in the summer of 1816, sunsets were marked by the sun turning blood red due to atmospheric contamination!
+ cow farts :)
Thank you for this video. I'm going to show it to my students today.
This video is amazingly informative
What i got from this is that we are still not completely sure why ice ages happen
it is important to note that those aren't the only factors that created ice ages in the past. the composition of the atmosphere and the distribution of the continental landmasses also caused major ice ages. large impact or vulcanic events (like flood basalts or extreme plinian eruptions) where able to alter the atmosperes reflective capabilities enough to block the sunlight and cause nuclear winters over large time periods. the distribution of landmasses is even more interesting. a larger concentration of continental landmass near or at the poles means that ice ages are more likely to happen and stay for longer, since the difference in albedo between land and ice is much bigger than the difference between water and ice. depending on the location of the continents the ocean currents also vary. and we have two wonderful recent examples on how they impact the earths climate: the gulf stream in the north, and the circumpolar current in the south. the gulf stream transports heat from tropical regions towards the poles and effectively acts as a barrier against (possibly) advancing ice masses, while the cold antarctic circum polar current is isolating the south pole from the warmer regions in the north, creating a positive feed back loop (due to albedo) that regulates the earths climate and keeps the southern ice masses intact.
we have the luxury to live in a comparatively super stable time period regarding the earths climate. i hope humanity manages to not bork it up somehow. we are pretty good at destroying stable environments after all :)
I often tell people, that we are nearer to the sun, in winter (northern hemisphere). We are always in an ice age, the current one began at least 2.5m years ago, Pleistocene it's known as, we are technically still in it, as the polar ice is retreating. There will be no interval as we begin the next ice age, so yes we're always in an ice age.
I'm glad this was uploaded and very clear. I was trying to understand something regarding this earlier, great timing, thank you! Good recommendation for me.
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this was complicated but I eventually understood, thanks for the video, very interesting.
@David Davids that shit didn't make sense
I have absolutely no reason to watch this video, not for entertainment nor for learning, yet I still watched the whole thing.
Beautifully explained, I have subscribed