Cracking the Ice Age. Documentary NOVA [12+]

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Survivor's Stories

Survivor's Stories

Yıl önce

Investigates an intriguing lead on the origin of the Ice Age - that the Himalayas were involved
ULTIMATE SURVIVAL STORIES: • Bethany Hamilton: Shar...
#crackingtheiceage #iceage #NOVAdocumentary

@SurvivorsStories Yıl önce
More activity for any video from you = more documentaries from me. Enjoy
@alanmacification Yıl önce
It's amazing to watch these older documentaries. The detail of the understanding of the past was reasonable accurate but crude. The amount of studies and detail that have been added since this documentary was produced is astounding.
@JulithaRyan Yıl önce
It's both wonderful and utterly terrifying.
@sacredweeds 11 aylar önce
I loved the video and the tell on age of the show with the Pabst Blue Ribbon in a tin can instead of aluminum.
@ellenbryn 10 aylar önce
I was just thinking the same thing. It was made before geologists learned of snowball earth or any of the early mass glaciations. And the description of the Earth forming in an inferno of molten rock and gas with an image of Hawaiian lava bujbbling away gives the gist, but of course we now know a good deal more from the Theia collision to Jupiter wandering in and wandering out again.
@susanhoneycutt5610 3 aylar önce
@@sacredweeds for me the time click was the computer graphics
@charlessomerset9754 Yıl önce
I get just as excited watching the Nova intro as I do a 20th Century Studios or Universal or Columbia logo. I just know it's going to teach me something I never knew, and new knowledge is just another piece of the infinite puzzle.
@DSAK55 Yıl önce
Koch Industries is a big supporter of Nova
@kluafoz Yıl önce
I usually do too but this wasn't the one I'm used too though...
@zohaibnaveed7572 Yıl önce
True indeed
@TheWinterShadow 4 aylar önce
For many documentary lovers, NOVA was their first love.
@SurvivorsStories 4 aylar önce
@alwayslive7460 2 aylar önce
@laughingoutloud5742 Aylar önce
I cut my TV documentary teeth on NOVA! I've been hooked since the first episode in '74, and love all the documentary content PBS gives us!! Thank you so much for NOVA full episode docs and may I request BBC's "How to Grow A Planet" narrated my Dr. Iain Stewart please? ❤😀🙏
@JellyRollSoul Yıl önce
Anything Nova does is worth watching ☺️
@Jim007baker Yıl önce
The only problem is that the Sahara desert has alternating between periods of drought and savannah. In fact the end of the last ice age was quite abrupt. I think the mountains do effect the climate for sure but the milankovitch cycles makes more sense as the cause of the ice age.
@harrietharlow9929 Yıl önce
That and both whether there is ice at the poles and the current position of the continents in the Northern Hemisphere surrounding the North Pole.
@noninoni9962 5 aylar önce
So do comets that hit Earth, as in the Younger Dryas period.
@terenceiutzi4003 Aylar önce
Yes, the global temperature change that we are experiencing now is one of the slowest in the earth's history!
@kevinburke9940 5 aylar önce
Since this episode aired in 1996, I wonder how much of the ice depicted still exists?
@scinanisern9845 5 aylar önce
Very very little has melted. Today the rise in temperatures have slowed to a halt. The temperature has not risen in twenty years. We prepare now to round the top of the 1100 year heat spike and fall toward the next cooler cycle, accelerated by the coming Eddie Minimum. You have to understand the temperatures have been falling for near 4,000 years now. During this time there has been a brief heat spike every 1,100 years. The Minoan Warming, the Roman Warming, the Medieval Warming and now a thousand years later the Modern Warming all have come exactly when expected and developed exactly as expected. As the cooling period begins harvests are expected to fail. Wide Scale shortage of food has been projected on the planet before 2030.
@ckwind1971 3 aylar önce
​@@scinanisern9845few people these days discuss these facts, thank you for bringing them to light here ❤
@cruisepaige 2 aylar önce
@@scinanisern9845you seriously wrote this during the #1 hottest and #2 hottest months on earth EVER recorded???!
@jerome8670 Yıl önce
I just love these old documentaries…. The sponsors the voice …the filming just sooooo 90’s 😫
@murdockdacoon2055 Yıl önce
Missing pull tabs on them PBR's......more like 70's. I grew up in the 80's and as a kid I remember the big deal it was when they switched from pull tabs on cans to the pop tops where the tab stayed attached to the tops. That was a huge deal when it came the 80's so this doc is dated in the 1970's.
@jerome8670 Yıl önce
@@murdockdacoon2055 really …. Wow 😯 it looks too good for 70’s but point taken 👍🏽 It was genuine entertainment and educational then …. Now so much drivel out there! Bring back VHS 😊
@laughingoutloud5742 Aylar önce
​@murdockdacoon2055 I remember that! lololol
@honeybear8485 Yıl önce
Nova is one of my favorite and interesting programs to watch for any type of History of science . I thought of quite some time now what has to do with climate change and ice age occurrences.. I believe has a lot to do with the Earth change and access and wobble I've mentioned this before and what causes that several things and I'm surprised scientists don't look at this theory because in 2004 tsunami knocked the Earth's office access it was actually recorded.. seismographic activity and other variations of observation.... Be surprised with any other planet in the solar systems access is Disturbed or changed close to minute way all of the planets will drop in temperatures probably all kinds of other anomalies and events and activities take place...🤔 Maybe in my next lifetime lol
@circusshizshow Yıl önce
It's far more profitable to talk about "climate change"... Actual reality be damned.
@georgecuyler7563 4 aylar önce
Not one of these guys mentioned trees. Growing up, the trees in my hometown were clear cut and the snowcapped mountains went bare, a few years ago I was back in my territory and the trees had grown back and so to were the snowcapped mountains.
@Mrbfgray Yıl önce
4:00 "So much water got frozen solid that sea levels dropped 400ft" has nothing to do with solid or liquid but WHERE the water IS. Ice on LAND drops sea levels, not floating ice.
@user-og3di4ub2e Aylar önce
From Martha's Vineyard..once thought the ice was 20 feet thick when it covered the Island. But new discoveries under a 1742 hotel indicates it was at least 200 feet thick.
@DTavona 9 aylar önce
While enlightening, NOVA celebrates season 50 in 2023. The episode posted for us to enjoy is from Season 23 and first aired on Dec 31, 1996, Production code 2320(453). So as far as climate research goes, it's over 25 years out of date.
@danbeaulieu2130 5 aylar önce
So its 75 years more up to date than the data used by Shell, Texaco, and Exxon
@JMDinOKC 5 aylar önce
At least the title doesn't contain the ridiculous TRshow dog-whistle word "insane."
@ckwind1971 3 aylar önce
@ckwind1971 3 aylar önce
​@@JMDinOKCor "ridiculous" 😂😂😂
@user-ns5os7we4j 3 aylar önce
Or "facts that have scientists terrified"
@behzadn5386 Yıl önce
I am a fan of Paleolithic period and human evolution, this documentary was good and useful
@harrietharlow9929 Yıl önce
Me, too. I find both the Paleolithic and human evolution fascinating. North 02 and Highly Compelling are two great channels here at You Tube. I recommend both highly.
@jeffreyhusack2400 Yıl önce
Great program , very interesting facts and great hypothesis
@lordbacon4972 Yıl önce
Mountains definitely drive the weather, but the himalayas accounts for a small fraction of the entire Earth's land surface, could this relatively small area cause global ice age?
@JMDinOKC 5 aylar önce
Who was it who said, "I'm too intelligent to believe in climate change" ?
@SelfMakeover Yıl önce
I have to get up and do my paid job now but all I want to do is learn more about this. Even reading the comments is educational!
@staceyjordan872 11 aylar önce
As well so are you
@alexontheedge 2 aylar önce
What if the ice age was simply caused by an unfortunate confluence of events/effects? Asteroid impacts: Logancha, Siberia, 20 km wide, 40 mya Haughton, Nunavut, 23 km, 39 mya Mistastin, Labrador & Newfoundland, 28 km, 36.4 mya Chesapeake Bay, Virginia, 40 km, ~35 mya Popigai, Siberia, 100(!) km, ~36 mya That is some serious debris thrown into the atmosphere over the course of about 6 million years, especially from the last one: Popigai. Enough with changes in weather patterns and weathering to perhaps tip the balance? I wonder where this theory has gone in the last 30 years...
@1ntwndrboy198 2 aylar önce
Only one thing in nature colder than ice and that is melting ice 😮 The friction under the plates could have triggered it.🤔
@nohandle62 3 aylar önce
There is no way we can intelligently say the last Ice Age was the worst, especially since there is also speculation about Snowball Earth, a time when the entire globe was frozen.
@SurvivorsStories 3 aylar önce
Yeah, that's right! I know this hypothesis. Did some presentation about this when I was student
@DoctorDildo 3 aylar önce
35:34 How in the world does something so incredibly wrong make it through the process of making this documentary without being caught? Equally confusing is how can she say that without catching it? Unless she thinks that's how far away satellites orbit Earth.
@petepal55 3 aylar önce
I would have thought the mountains would block the cold air from dispersing to the south, thus concentrating it in the northern climes and causing more ice formation from less snow melting. There's snow on top of the mountains because it's colder up there, not warmer. More snow would mean more reflecting of sunlight whereas bare rock would heat more but to what degree if it's pretty cold rock to begin with? Has anyone ever found warm rocks up there, or are they all cold?
@laughingoutloud5742 Aylar önce
They're all cold at that altitude. If they were climbing an active volcano, there would be a pretty good chance of finding warm rocks at high altitude 😂😉
@LewdCustomer Yıl önce
I'm interested in prehistory. Tell us how the ice formation got to be kilometers deep. A deep drop in temperature does not automatically cause deep ice. The temperature must drop while the atmosphere in the area has water drifting through.
@oilsmokejones3452 4 aylar önce
snows don't melt from year to year as in non ice ages..over hundreds of years the build up becomes significant..or you could just ask John Kerry..he's the irrefutable expert on this..
@fredbrandon1645 2 aylar önce
Ask a third grader to explain the water cycle to you.
@sharonshort4018 Aylar önce
Continental ice sheets aren't created overnight. It takes years, maybe even thousands of years to accumulate. Neither do they disperse overnight.
@garyellington1216 Yıl önce
I don't think it was Himalayas alone . Although I think they contributed to the Ice Ages .
@harrietharlow9929 Yıl önce
Maybe the entire Alpide Belt. It runs from out in the Atlantic and includes the Pyrenees, the Alps, the Carpathians, the Caucasus, Tien Shan, Pamir, Hindu Kush and Himalayas. They all rose at about the same time.
@TheBobservations Yıl önce
Erosion worldwide picked-uup at 40 million with major changes in the patterns of sea floor spreading, i.e. the Pacific for one, and the rise of rocky terranes in North and South America and elsewhere. So, the strontium record needs to be examined worldwide if this has not been done. Personally, I come down on Dr. Maureen Raymon's theory as a major contributor. Thank youfor a most interesting NOVA episode, and to all of my fellow scientist--keep an open mind.
@laughingoutloud5742 Aylar önce
Things have been updated a lot since 1994 - OMG that's 29 years ago!! Holy cow time flies! 🤯
@jandrews6254 Yıl önce
The carcass of a woolly mammoth was found in the early 1900s in Beresovka, Russia. It was intact with flesh, hair and eyeballs. It had been grazing, the food was in its mouth and stomach contents. Then it was extremely suddenly knocked back onto its rump, breaking both its hip bones, and was buried and frozen so rapidly that there was no decomposition. It was estimated the 6ton beast would have had to been frozen within four hours. He had an erect penis, which apparently means he was suffocated. What makes you think the onset of an ice age happens gradually?
@peacenow42 Yıl önce
flash flood that froze over really fast?
@SurvivorsStories Yıl önce
Your facts and point of view is highly questionable. And if it's rude for me - is a bullshit
@SelfMakeover Yıl önce
@@SurvivorsStories that's unkind and disrespectful.
@puppiesarepower3682 Yıl önce
Whatever it was that chill certainly happened catastrophically quickly. Scientists don't like catastrophies, it makes them ideologically uneasy. Some are so dedicated at shooting anything catastrophic down, that there are some still trying to wave away the Dino impactor.
@thevoiceharmonic Yıl önce
If a big meteor crashes into ice a few km thick, the blast wave will blow most of the air away from the region which would cause sudden blackout.
@dennismendez947 5 aylar önce
Great documentary! Hope more sense video to come THANKS NOVA
@garyellington1216 Yıl önce
It was a combination of things. From the Earth's orbet to volcanoes to ocean 🌊 currents. In my view.
@ronaldjanert7456 Yıl önce
Your view is wrong. Read the science literature, visit the NASA Climate website, take a university course (like I did) in climate science, whatever. Opinions mean nothing when unsupported by the evidence.
@Mrbfgray Yıl önce
Sure, but not relevant to my comment but maybe it was too obvious to note.
@cruisepaige 2 aylar önce
Your view? “Orbet?”
@rocioaguilera3555 7 aylar önce
Some scientists say we're entering another ice age. Perhaps. I doubt that our civilization would survive in such a case.😢
@scinanisern9845 5 aylar önce
The planet has been cooling for near 4,000 years now and during this time there has been a brief heat spike every 1100 years. Like the Minoan Warming, the Roman Warming after it, the Medieval Warming after it, the Modern Warming today came exactly when expected and developed exactly how expected. Today we round the top and begin the slide down the falling side of the spike to a new and even colder period than before, known as the Little Ice Age. As this happens the Eddy Minimum is due, likely in the early 2030's. As we chill once again harvests are expected to fail. Global crop failure is forecast before 2030. If you were to measure the ice on the planet you would find that there has been more ice in the last few hundred years than in the last ten thousand all added up together. Never in the entire Holocene as this pattern of climate developed. The only time this sort of pattern has ever emerged is when the previous Interglacial Periods came to a close. It indeed does look like the Holocene is ending and today is warmest it will be for the next 100,000 years. Start a garden.
@ivaselendic2514 Yıl önce
Great one, thank you👍🏼🌸
@SurvivorsStories Yıl önce
You're welcome ^^)
@JamesVesely 5 aylar önce
I can't understand why PBS don't make these available on their website.
@SurvivorsStories 5 aylar önce
That's good for me!☺ I can help you with that
@nohandle62 3 aylar önce
They want money. It's not about education. It's about profit.
@SurvivorsStories 3 aylar önce
@@nohandle62 Who?
@edwardperl-scott7498 9 aylar önce
What about ocean currents and the oceans conveyor belt? That makes way more sense to me then some complex Guessing game
@SurvivorsStories 9 aylar önce
That's what I'm talking about...
@rdgurule Yıl önce
As interesting as this and fascinating. I think the most eye opening happened for was seeing cans of PBR on the table in Tibet. Cans with old school pull rings to open the can. They should have studying when did those PBR come into a Tibet and what effect PBR has effected the Tibetans. 🍺🍺
@myronkroeker6474 11 aylar önce
Pbr is good for Tibetan.
@peatmoss4415 5 aylar önce
"12,000 years ago the ice sheet shrank away" That's when man started driving SUVs and TRshow says it was from burning fossil fuels.
@gc583 3 aylar önce
12000 years ago our suv's were much larger and used 10 times the fossil fuel we use today.back then fuel was almost $5 /gallon.
@gandalfgreyhame3425 Yıl önce
Wow, this is REALLY OLD. I looked it up and this episode first aired in 1997, that's 25 years ago, and there are so many more details and better theories to explain what happened in Earth's ancient past. The Milankovitch cycles are now a standard explanation for the ice ages occurring every 100,000 years, evidence for one or more "Snowball Earths" dating back to the beginnings of life on Earth has also accumulated. In 1997, people were still more worried about a global nuclear winter from the fallout of a massive thermonuclear world war than about global warming from greenhouse gases. Science marches on......
@loris7660 Yıl önce
As soon as it started I was thinking….this must be old. Even the narrator’s voice seems 90s. 😳 I’ll have to look up a more updated video on the subject.
@puppiesarepower3682 Yıl önce
Odd, Al Gore was vice president at the time and you're saying that climatic change was not a concern at the time... fascinating. There are cartoon shows from the 1980s that had PSAs at the end, and climatic change... I mean Global Warming, was a topic of concern. You've obviously never seen Captain Planet have you.
@gandalfgreyhame3425 Yıl önce
​@@puppiesarepower3682 I knew about climate change way back in 8th grade, in 1970, when I read in our science textbook that 1) carbon dioxide in the atmosphere increases the greenhouse effect, and 2) carbon dioxide in the atmosphere was steadily increasing because of fossil fuels. Now, these bits of fact were presented on separate pages in the textbook, and there was no connection made between the two, but it wasn't hard to see the link and so in class, I asked the science teacher, "doesn't that mean the climate is going to get warmer and warmer on Earth?" And the science teacher thought for a minute and said, "yeah, you're right, it probably will, but that won't be for another hundred years, and then we'll all be dead!" Well, that was over fifty years ago, so, he was pretty close - in another fifty years the full force of global warming will be upon us. As to Captain Planet, no never heard of it, never watched it. If you were old enough to be paying attention to the news in the 1980s instead of watching cartoon shows, the news was full of Reagan's military buildup, the neutron bomb, the basing of nuclear capable Pershing missiles in Germany, and the massive protests against all that in favor of "world peace". In the midst of all that, Carl Sagan's group came out with the hugely influential "Nuclear Winter" paper in 1983, postulating that the dust from a global nuclear war would cause a massive global freeze. This pretty much drowned out whatever faint messages of global warming were out there at the time. In the 1990s, whatever Gore was doing as vice-president during the Clinton administration was swamped by the news media circus going on with the Clintons during that time. He didn't really make an impact until he came out with his movie documentary "An Inconvenient Truth" in 2006. That movie served as the clarion call that finally brought global warming to the forefront of public attention. By then, the Soviet Union had broken up, Shrub had declared Vladmir Putin to be "trustworthy", and the possibillty of a nuclear winter seemed remote. Today, despite Russia and North Korea constantly threatening to use nuclear weapons, people (other than the diehard preppers) still seem very blase about this possibility of a nuclear winter. A nuclear winter would actually be a pretty solid cure for the ongoing global warming.
@ColumbiaB Yıl önce
Note that in the credits, at 55:12, we see, “© 1996”. That could probably be consistent with a first air date, at some outlets, in 1997.
@BarraDrenn 27 gün önce
Could it be possible that both theories are correct?
@citizendavid 3 aylar önce
The destiny to the top of the highest mountain is at the lowest bottom of the sea.
@SamtheIrishexan Yıl önce
It was the Himalayas and the separation of Africa from South America which drastically altered the gulf stream.
@anorthosite Yıl önce
Africa and South America separated much earlier (during the Mesozoic), before there Was a Gulf Stream. But the much more recent creation of the Isthmus of Panama (by volcanism) separated Atlantic from Pacific ocean currents and could have affected the Gulf Stream, and the amount of moisture available to form glaciers in Europe.
@petercyr3508 Aylar önce
From 1996. How things change.
@trentshaffer2747 2 aylar önce
I still can't see how the Himalayas caused a worldwide Ice Age especially considering how long it took them to get to the height they are. It's more interesting that we didn't have ice caps on our poles, don't let Greta Thunberg find out she'll implode! How dare you! Great documentary. Nonetheless.
@drlindberg1 Aylar önce
I imagine she’s known that for a long time.
@soner818 3 aylar önce
What if the earth drifted out of orbit further away from the sun, would this cause and ice-age?
@JohnPlissken Yıl önce
Can't watch because TRshow's "fact-checking" box interferes with my view window. I honestly couldn't care less what TRshow's corporate opinion is about any subject, but I can definitely say that when you try to force your ideas on me and tell me i'm not allowed to even hear a different opinion, or i'm not allowed to hear a different opinion without you "fact-checking" it for me, my first gut reaction is you are not only a liar but you are trying to harm me in some way not least of which by restricting or currating my access to information.
@y4s563 29 gün önce
It's called censorship .
@jeffreyhusack2400 22 gün önce
​@@y4s563lol , only in America
@b.b.grenade1407 12 gün önce
Hear Hear !
@gerardoneill1513 Yıl önce
Seems to me that you have air intake below the engine, put it upside down to get through water.
@BillFromHalifax Yıl önce
How could the last ice age have been 40 million years ago when they happen every 26,000 years? 🤔🤔
@anorthosite Yıl önce
Many people confuse "glacial period" with "ice age". An Ice Age is a long-term period (up to millions of years) during which multiple glacial and interglacial periods can occur. The program was about the long-term cause of the current Ice Age. They also touched on how glacial/interglacial periods match cyclical changes in the earth's orbit (and axial tilt and precession). Ocean sediment cores indicate that around 8 to 10 glacial/interglacial cycles have happened over the last 800,000 years. But on land, the most recent continental glaciation tended to "bulldoze" away the record of the previous ones (but not everywhere). The most recent cycle lasted about 100,000 years, and glaciation peaked around 26,000 years ago.
@brettwilson3142 Yıl önce
The good old TV shows
@ozoneswiftak Yıl önce
We might see a meteorite hit before a polar shift.
@mikestand714 Yıl önce
i just love that you tube has to fact check this by united nations no less.
@jerrypeal653 Yıl önce
Yeah I saw that , guess humans stopped the ice age , lol
@JFrazer4303 5 aylar önce
Meanwhile, in the last century, we've put mor carbon into the atmosphere than hundreds of millions of years of natural activity.
@mattematsson554 3 aylar önce
The atmosphere contains 415 ppm of CO2. Less than half a percent.
@JFrazer4303 3 aylar önce
@@mattematsson554 And? If your claim is true, you concede that we've increased it drastically.
@JFrazer4303 3 aylar önce
@@mattematsson554 And? Doesn't change the fact of what I first wrote.
@jerrypeal653 Yıl önce
The mountains haven’t shrank so if it was these mountains what changed to make it warmer again and when did that warming take place . This could be addressed as I continue to watch .
@paulmetrich87 Yıl önce
Like it or not Electric Universe theory needs to be included in mainstream science
@michaelfried3123 Yıl önce
nope. flat Earth needs to stay out of real science too...
@michaelfried3123 Yıl önce
@@paulmetrich87 you dropped your tin foil hat bro.
@miroman6860 11 aylar önce
You forgot to mention & explain the "Milankovic Cycles" and their influence on the climate
@AJ-lu3wx 3 aylar önce
2:55 For extended periods of time, no ice existed, not even at the poles. Those climate change guys must have been working REALLY hard back then. Just lush horrible.
@mrglasecki 5 aylar önce
Slowly is relative, mastodons flash frozen standing upright eating sub tropical vegetation, that wasn't exactly slow
@ozoneswiftak Yıl önce
50 years later , news flash it is still melting. Oceans are rising. We are getting a lot more meteorites are way.
@JMDinOKC 5 aylar önce
You notice that the titles of these originally made-for-television programs don't include cynical, manipulative TRshow dog-whistle words like "have scientists scared," "terrifying," "fearful," "cataclysmic," "astounding," "unbelievable," and ESPECIALLY "insane." I have not seen ONE SINGLE "insane" TRshow video except for all of the videos where Donald Trump opens his mouth and gibberish comes out of it.
@JFrazer4303 5 aylar önce
See also the Hamaker theory. The older movie "Stopping the Coming Ice Age" is out there, as an older idea.
@SurvivorsStories 5 aylar önce
Thanks for advise!
@DwayneShaw1 11 aylar önce
"Climate change refers to long-term shifts in temperatures and weather patterns, mainly caused by human activities, especially the burning of fossil fuels." - - Actually humans contribute a relatively small percentage of greenhouse gasses to the over all total emitted - but, it just happens to be the percentage that tips the balance - and accounts for most of the accumulating build up in the atmosphere.
@davidkelter8379 Yıl önce
No mention of the Melankovic Cycles. Fascinating.
@ronaldjanert7456 Yıl önce
That’s because the Milankovitch cycles are NOT currently having an effect on Earth’s climate, so why mention it? Moreover, those cycles affect earths climate on 100,000 year cycle, not the last 50 years in which the majority of our climate change has occurred from manmade CO2 emissions. And yes, they do know that the excess CO2 accumulations are from fossil fuels because they carry the C12 isotope signature, which can only come from fossil fuels.
@davidkelter8379 Yıl önce
@@ronaldjanert7456 my comment wasn't disputing modern day climate change as I am not a climate denier. The damage brought on by fossil fuels is indisputable. The video of cracking the ice age centered around the building of the Himalyas as the primary driver of the last ice age. Nowhere in the documentary did they mention the Malencavic Cycles. I found that fascinating.
@ronaldjanert7456 Yıl önce
@@douglashanlon1975 It’s not a matter of how long humans have been around burning fossil fuels. What’s at issue is HOW MUCH of it we’ve been burning, and HOW FAST. Before us, Earth’s Carbon cycle has been in BALANCE (i.e., equal amounts drawn out of the atmosphere vs. How much gets released naturally). that has kept our climate extremely stable for the last 8,000 years, and relatively stable for the last 800,000 years. The problem is, the Earth can only absorb a certain amount at a certain speed, and CO2 persists in the atmosphere from a 100 to a 1,000 years before it’s circulated back out again. That means that everything extra we emit ACCUMULATES year over year, the same way a bathtub fills up over time and eventually overflows under a dripping faucet when it’s not allowed to drain as fast as it’s accumulating. And that faucet’s been dripping faster and faster over the last 200 years. The greatest amount of accumulation of CO2 has occurred in only the last 40-50 years thanks to Globalization. That’s why it’s risen from 280 ppm to 419 ppm in so short a time. As for your argument about glacial and interglacial periods, they’re irrelevant to any discussions about our CURRENT climate situation. Why? Because those happen in roughly 100,000 year cycles in response to variations in the Earth’s orbit and axial tilt (Milankovich Cycles) and there are currently no appreciable changes that can even remotely, possibly have an effect on our current climate, and they most certainly can’t explain the speed at which the Earth is heating up. None. There is no natural explanation for the speed at which global warming is occurring. The science doesn’t match what we’re witnessing. Moreover, the isotopic signature of the carbon building up in the atmosphere proves the excess CO2 is human-caused because the ratio of C12 is increasing relative to C13, and that can only come from fossil fuels where it’s been shielded for millions of years from the ionizing effects of solar radiation.
@NevilleRamdeholl 11 aylar önce
Has anyone at MIT given a thought that was anything was there before the Himalayas for a start.....
@christianmartin5854 Yıl önce
Soooo... If I get it, we need to burn coal, oil, natural gas, and wood to compensate the impact of the Himalaya on climate? COOL! Question: Will Homo live long enough to win the fight against the mountains? And what happens when MORE mountains build up, such as during the closure of the Mediterranean Sea or the Bearing Strait? Two million years is a LOONG time AND species evolve a lot faster than what Darwin thought, ESPECIALLY when there are major environmental changes.
@darwinwins Yıl önce
the kite at the 1:12 mark did not fly off because of the wind.
@hotarchives5569 Yıl önce
How would one put on paper the climactic hypotheses that involve the interaction of CO2 and weathering?
@SurvivorsStories Yıl önce
The rhetorical question...
@woody5109 3 aylar önce
This science is sound and accurate, it’s a cycle, very natural. Man’s influence is minor, insignificant.m, there is no climate crisis.
@tiffanym4202 3 aylar önce
If the rise of the Himalayas caused an ice age, then why are we not still in one? Are they not still rising and eroding? I'm disappointed that I didn't hear this very obvious question be addressed.
@janetbyrd1065 5 aylar önce
Scientists forget that out of the clash of various opinions, the Truth will emerge!
@MendTheWorld Yıl önce
I don't like when they say that GHG's "trap heat" in the atmosphere. That's not really true, although it might be the easiest way for people to understand its effect. What it does is to slow the rate of escape of outgoing heat, which alters the equilibrium between incoming sunlight and outgoing infrared radiation. This imbalance causes the net accumulation of a very small fraction of the incoming solar energy. But it's enough of an effect to cause net warming of the climate. Most of this excess heat goes into the oceans by the way, not into the atmosphere. This is one reason why warming will continue to occur even if we became net zero tomorrow. The scientific discussion in the video seemed quite good to me in general, and I realize things have to be simplified a bit for popular consumption. The problem comes when anti-science AGW Denialists misrepresent the science in an effort to support their political theories that AGW is a hoax.
@SurvivorsStories Yıl önce
@bradfregger2561 5 aylar önce
There’s a lot here that touches on the global warming hysteria , especially the impact on CO2 and the suggestion that the natural state is a very warm planet. Without sufficient CO2, plants starve and O2 is threatened which is a disaster for animal life. It is also interesting that one of the ice age theories involves volcanos causing the suns energy to be blocked. I suspect that many factors, volcanos, orbit, solar activity, and this current theory all come together, acting as a catalyst … ice age. I’m wondering how smart it is to seriously consider trying to block the sun to stop the highly controversial AGW hypothesis?
@timothylane6043 3 aylar önce
Never forget about boils law because this explains what happens on mountains they can't start a ice age, its only the orbit of the moon and sun creates ice age
@xKiNx 3 aylar önce
So, Ice melts revealing more rock. Rock cools the earth into making more ice? Or the melting causes flooding and that facilitates moving of the tectonic plates, pushing up more rock and cooling the earth? Smh I'm just a plumber, but whatever is going on it's cyclical it seems.
@antonio85197 Yıl önce
Wow Thanks, my friend 👍👏👏👏
@marvinstorm9153 Yıl önce
Great insight to combat the current climate change hysteria. The hystericals will not listen, they wallow in ignorance and self flagelation. Fine, don't inflict it on us! Thank you
@peacenow42 Yıl önce
so maybe you can contact the families of the dead firefighters from spain and explain that to them.
@daleolson3506 Yıl önce
You can’t reason with any fanatic. Racing religion politics none can be reasoned with.
@jeffreyhusack2400 Yıl önce
I'm curious though that nothing was mentioned about the Milankovitch Theory
@ronaldjanert7456 Yıl önce
They don’t need to. The Milankovitch cycles are irrelevant, because at this time there has been no kind of changes affecting earths climate.
@susanharris5926 Yıl önce
@@ronaldjanert7456 Who is talking about at this time? We are going back millions of years and this would certainly include Milankovitch cycles. That being said, I think it was more than just the Himalayas that caused the ice ages. We are still in one (tail end) actually, but global warming will take care of that.
@laughingoutloud5742 Aylar önce
@paulwolfenberger3884 8 gün önce
"Carbon dioxide controls the temperature of the earth". That statement is false. Water vapor and methane have a much bigger impact. Also it has been shown that as the level of carbon dioxide climbs, it's effectiveness as a green-house gas decreased.
@SurvivorsStories 6 gün önce
link please
@cherylkrause4998 4 aylar önce
What if “ice age” is the normal and warm is the out of the norm?
@SurvivorsStories 4 aylar önce
What if...
@jvcyt298 4 aylar önce
It's difficult to have to listen to him keep saying there were no ice ages before 40 million years ago when strong evidence exists of snowball earth, which was 2 billion years ago, and just before the Ediacararin period
@leostgeorge2080 3 aylar önce
The attempt to explain the ice age with the rise of the Himalayan mountains is absurd. The mountains took hundreds of thousands of years to rise. The wind patterns would have slowly adapted as the mountains slowly rise. If the mountains cause the ice age. We would still be in the ice age because the mountains are still there.
@mikekirk1513 Yıl önce
The last ice age started 40 ma? No, I don't think so.
@Mrbfgray Yıl önce
40k in round numbers. That's colloquial for latest (probably not last) glacial maximum, strictly speaking we *are in the ice ages* beginning aprox. 3M yrs ago to present, with relatively brief interglacial times like now, alternated with longer glacial periods. We are roughly 'due' for next glacial max, 'soon' to a couple thousand yrs out. We are on the cusp of tech/economic power to prevent next devastating event but CO2 probaly will not do the job, even a lot more than now in the atmosphere, it will at least marginally reduce the risk of mass plant extinction caused by dangerously low CO2 levels (meaning the end of everything that matters) that recent glacial max events have just skirted.
@Zebred2001 Yıl önce
Back when climatologists were professional enough to admit "the science isn't settled!"
@MendTheWorld Yıl önce
Your criticism is a straw man. Scientific conclusions become effectively "settled" when vast quantities of carefully collected evidence support them, and when no plausible alternatives can explain the evidence. This is the case with anthropogenic global warming, and climate scientists have been entirely professional and how they have addressed this question over the past 150 years.
@antenna-man Yıl önce
Very interesting analogy software. 👍🌬️
@revolvermaster4939 Yıl önce
So the climate has fluctuated wildly for the entire existence of Earth due to millions of variables, but now I’m told it’s anthropogenic!
@peacenow42 Yıl önce
you may catch up some day, give yourself some time to figure it all out and all.
@revolvermaster4939 Yıl önce
@@peacenow42 put your mask back on and go back to sleep
@peacenow42 Yıl önce
@@revolvermaster4939 keep your mask off and help facial recognition AI.
@MendTheWorld Yıl önce
Frolic and revel in your ignorance. Be proud of it! That's the way! Don't try to understand it! Be content and satisfied to know nothing at all.
@proudchristian77 Yıl önce
Because Almighty God is a artist, He makes wow things, like lons tiger's & bear's , & decorates the land scape , 🐾💖🐅 💒
@ronaldjanert7456 Yıl önce
How old is this documentary? It looks and sounds like it may have been produced in the 1970’s or early 80’s, and seems to be a bit behind in terms of what we know today.
@77AbleArcher Yıl önce
It's awesome that they weren't frothing about global warming with every breath.
@nick24mobi Yıl önce
@peacenow42 Yıl önce
@@77AbleArcher like you
@ColumbiaB Yıl önce
A reasonable question . . . but where to find that information should be obvious: look in the •credits•!!! At 55:12, we see, “© 1996”. At the risk of giving offense, I have to say it seems baffling anyone would need help figuring that out.
@Mollyedmonton Yıl önce
I think methane from animal farming also contribute greatly to the changes in weather and temperatures.
@tsunamis82 3 aylar önce
Also the methane bubbling out of the permafrost which is melting at an alarming rate.
@gerardoneill1513 Yıl önce
A synthesis is just another way to say I'm guessing, kind of a theory, what do you believe.
@richardnailhistorical3445 Yıl önce
Rather primitive science project, let me know when you get all your facts together and approved by the London Society of Science!
@patrickcorbin8904 Yıl önce
I figured it's always Near Earth Object that makes it what ever it get cold or hot.
@mackknife8414 Yıl önce
Watched nova as a kid in the 70's
@louisesumrell6331 Yıl önce
This is pretty old, but still good....the phone I'm typing this on can tell me my elevation and coordinates, to five places...
@EuroWarsOrg Yıl önce
Ice Ages did NOT start 40 MYA? What about "Snowball Earth" 650 MYA?
@sharonshort4018 Aylar önce
Very likely its a combination of all the things mentioned. We may never be sure.
@ronc7743 Yıl önce
These guys probably couldn't get funding today. Not enough talk about the nasty humans.
@Jose_Hunters_EWF_Remixes Yıl önce
How old is this documentary? The 4 : 3 frame makes me think it's older than the Himalayas
@michaelfried3123 Yıl önce
its from the early 2000's. 2003 I believe.
@ColumbiaB Yıl önce
If you’re genuinely curious, try finding that information in the most obvious place: look at the •credits•. At 55:12, we see, “© 1996”. The real mystery is, why does anyone need help figuring this out?
@1onearth Yıl önce
@@ColumbiaB Nature and nurture are often irresponsible. Why we invented science.
@SurvivorsStories 5 aylar önce
@ColumbiaB +1 million credits for you for information for inattentive people. Thank you! Gosh...face palm
@circusshizshow Yıl önce
Why in the world is this "12 + "
@bigmerchmrpresidentccgtvmu3522 10 aylar önce
I thought this was a Dave Chappelle skit Called " Cracking the ice age " with crackhead cavemen .. 😂 Lol
@ds9902 Yıl önce
The Earth orbit changed and so did the wobble along with the magnetic polarity changed and how close the moon was to the Earth during that time period, that a scientific fact. the Himalayas did not cuz the ice age.
@shawnesantana575 Yıl önce
Prove it
@charliehorse43 Yıl önce
wikipedia The causes of ice ages are not fully understood for either the large-scale ice age periods or the smaller ebb and flow of glacial-interglacial periods within an ice age. The consensus is that several factors are important: atmospheric composition, such as the concentrations of carbon dioxide and methane (the specific levels of the previously mentioned gases are now able to be seen with the new ice core samples from EPICA Dome C in Antarctica over the past 800,000 years); changes in Earth's orbit around the Sun known as Milankovitch cycles; the motion of tectonic plates resulting in changes in the relative location and amount of continental and oceanic crust on Earth's surface, which affect wind and ocean currents; variations in solar output; the orbital dynamics of the Earth-Moon system; the impact of relatively large meteorites and volcanism including eruptions of supervolcanoes.[57][citation needed] Some of these factors influence each other. For example, changes in Earth's atmospheric composition (especially the concentrations of greenhouse gases) may alter the climate, while climate change itself can change the atmospheric composition (for example by changing the rate at which weathering removes CO2). Maureen Raymo, William Ruddiman and others propose that the Tibetan and Colorado Plateaus are immense CO2 "scrubbers" with a capacity to remove enough CO2 from the global atmosphere to be a significant causal factor of the 40 million year Cenozoic Cooling trend. They further claim that approximately half of their uplift (and CO2 "scrubbing" capacity) occurred in the past 10 million years.[58][59]
@jeffreyhusack2400 Yıl önce
@@shawnesantana575 it's called Malankovitch Theory
@shawnesantana575 Yıl önce
@@jeffreyhusack2400 not proof
@MendTheWorld Yıl önce
@@charliehorse43 Excellent answer! Thank you for being a spokesperson for science.
@raderator Yıl önce
We're still in an ice age, as well as a CO2 famine.
@swirvinbirds1971 Yıl önce
While yes we are, we are technically in the warm interglacial period of the ice age. CO2 famine? 😂 No... Plants are not starving for more CO2.
@JCO2002 Yıl önce
47:19 Lower the tyre pressure. Off-road driving 101 when you're in sand.
@SurvivorsStories Yıl önce
Realy interesting: did they know that at that days?
@JCO2002 Yıl önce
@@SurvivorsStories They should have. A lot of off-road vehicles have compressors just for that reason. Lower the tyre pressure in sand, then pump it back up for rock. It gives you more of a footprint, so the load is distributed over more area.
@liberatovillavicencio7159 4 aylar önce
Pick your outcome ice age or what’s currently occurring to our planet’s disturbing warming average temps.
@theresawalker460 Yıl önce
Do unto others as you would have done unto you is a forever law.
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