How Warm was the Roman Climate?
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- Опубліковано 5 чер 2024
- This video explores the significance of the Roman Warm Period, a centuries-long climatic anomaly that brought periods of exceptionally mild and stable weather to the Mediterranean world.
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Chapters:
0:00 Introduction
0:43 The Holocene climate
1:32 Evidence for the Roman Warm Period
4:26 Klima
5:31 A regional anomaly
5:58 Significance of the Roman Warm Period
Thanks for watching!
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Can you make a video on the (late antique little ice age) (lalia) as it's very fascinating,
Are you aware that we don't know any eras in the last 3000 years where there were more trees than today in Europe ?
In France, forest area got multiplied by 3 since Revolution.
Having a sponsor is more usefull compare to planting trees....
Plant a tree if you want it, trees are cool, and it's better to plant trees than killing people or doing drugs. But please don't say that planting a tree can have any link with climate, it's just ridiculous.
I signed up!
Klima will probably plant ten trees of a fast growing variety which are completely non suitable for where they are planted. In the UK the government has this plan to offset carbon by just planting trees, thats green right? What's not to like? Climate saved!
Well, no actually, they plant rubbish fast growing species like Sitka spruce which isn't used to our climate and soil, so every time there is a bit of wind they immediately fall over and need disposing of.
Ah well, as long as government tree planting graph line goes up, that's all that matters to these green people. Pure utilitarian urbanites.
@@jackoates6418 You're right. They will plant fast growing pyrophyte trees like Eucalyptus, and when these plant will provoke fires (that's what "pyrophyte" means), they will say it's because of global warming. They do that in Portugal for decades.
I would like to hear more about this polar bear
Yes, and the comment about Greenland as well? Was there Roman discovery of or habitation of Greenland?
Me too
@@johnmcglynn4102 no nothing of the sort. i believe the remark about roman lead on the greenland ice cap was simply lead pollution discovered from times where roman industrialization was in full kick, notably from times such as caesar’s rule.
Me too
I should have qualified that as "what is generally assumed to have been a polar bear." The evidence is a poem by Calpurnius Siculus, who describes a shepherd's impression of (presumably real) games in Nero's amphitheater. One of the spectacles he sees is a bear diving for seals. Since polar bears are the only species of bear accessible to the Romans that behaves this way, it's assumed that the poem reflects the presence of one or more actual polar bears in Rome. (Martial also mentions a great white bear appearing at the Colosseum in the reign of Domitian, but this may have just been an albino European brown bear.) So - how would a polar bear have ended up in Rome? Your guess, frankly, is as good as mine. Perhaps some Roman amber merchant working on the Baltic heard about a polar bear that had ended up in Scandinavia...
And yes, I was referring to traces of lead discovered in the Greenland ice cap. The Romans (to the best of our knowledge) never ventured past the Northern Isles of Scotland.
Wheat was grown in Northern England during Roman times in places where it's not grown today - I never knew the reason why. Great video!
They also grew grapes as far north as Scotland during the Roman warm period.
Weath was found i northern Sweden, Lycksele the findings are from 500BC. It's not possible to grow weath there today, it's only possible in southern Sweden.
So I must have been warmer than today
@@jesperfaerch4184 SCIENCE DENIERS REVEALED AGAIN. awwwHUMPFTY DRUMPFTY HAD A GREAT FALL bahahah
The historical content you produce is of the best quality and at the same time enjoyable to learn.
Now there's a very interesting topic that not many mention, likethe first time I heard that the celts fought against the Romans while naked, I didn't believe it due to how cold it is here in modern times.
Really puts the "global warming" fear mongering in perspective, huh.
@@ANPC-pi9vu well that’s because of fossil fuels and we should be afraid of that. What’s the issue? Are you insinuating mankind isn’t directly responsible? That would be irresponsible and frankly dumb.
Soldiers who wore no armor were often described as 'naked' in the past - ie they fought without armor and/or shields.
Ancient armies would typically only fight in the summer.
@@pinchevulpes Yes, that is what I am saying. While we do have some influence on the climate, we do not control it, and climate change is a natural occurrence that pre-exists humanity. I'm all for reducing polution, but fear is only used to assert control, not solve problems. It was only back in the 80's all the hysteria was about a coming ice age, you know. And then when they switched to the global warming hysteria, none of their dire predictions have been met. You are the fool if you think we fully understand these processes or how to use them to control the temperature of the Earth as of yet.
You know what happens when there's too much carbon dioxide being produced, btw? Faster plant growth. The real concern is preventing ocean acidification, as the ocean is where most of the Earth's oxygen actually comes from, and is also the largest carbon sink.
0:17 I heard that as: “A polar bear was brought to Rome and, led from Roman furnaces, settled on the Greenland ice cap”
That is quite a swim!
Yeah, i had to play that three times to parse it.
Those darn Romans and their numerous coal power plants!
And here it is. I actually searched the comments for a climate change denier. Why do you even bother to watch documentaries when you will believe anything your right-wing cult leaders tell you?
@@davidlawrence3106 Why do you even bother to watch documentaries when you don't understand what they are about? :)
@@snookiewozo its was Silver mining and smelting .you can see lead pollution at Greenland ice
@@zapnic. Good thing we do much less mining and smelting nowadays. /s
It's interesting that dendrocrinoligy, if you want to study the history of earth's climate, the trees carry so much information. I learned alot about it from watching 'Time Team' in the UK. It was great for learning about what real archeology is about. It is still on UA-cam for anyone who is interested.
It's Dendrochronolgy' meaning the timeline in chronological order re trees and plants as they leave traces of their original make up, like DNA, which can be extracted and includes tree rings and other readable things, though these are not always available...
What's interesting about dendrocrinoligy is that it has no correlation with temperature, which is why Doctor Mann truncated his dendrocrinoligy data in the 1800s and slapped on the North American recorded temperature data in its place on his hockey stick dendrocrinoligy temperature graph in 1998.
As a forester, I guarantee data from tree rings is useless in determining magnitude of past temperatures. Dendrological physiology information does not support temperature proxy reconstruction from tree rings. The medieval warm period has been shown by numerous papers to have been at least 2 degrees warmer than current global temperatures. The proxy data presented in the graph has huge error bars associated with it that is not presented here.
An extended period of favorable weather, with resultant food surpluses and increase in horse population on the mongol steppes, was a necessary precursor to the rise of Ghenkis Khan. Weather has had a massive impact on human history.
Probably not. Did you not listen to what he said? He explicitly said that you can't just take good climate and say "this is the reason Genghis Khan was so successful in his conquests". You're massively overestimating the impact climate has had.
If it’s so much warmer now grapes should happily survive in Scotland
Good connection between the past and present,with great geological knowledge,great production,thankyou very much
Why are the fluctuations of temperature average natural before the introduction of climate change concept, and man made after? When you look at global temperature average estimates gathered through archeology as well as ice core drilling you will see the current uptrend in heat is very normal.
Those graphs in the end are the PERFECT example of using data to manipulate perception. Learn about manipulative chart assembly to get a good understanding.
I recommend the book 'False Alarm' by Bjorn Lomborg. There are some.. misconceptions being promoted here.
Have you read The Fate of Rome by Kyle Harper? Two semesters ago my professor assigned this book for our History of the Roman Empire class to show how the climate was tied to humanity even in the past. It was a great read and very interesting.
Lol I just posted a comment with the same recommendation. The Fate of Rome was so good I read it twice!
There's a hypothesis that empires rise and fall with solar cycles.
There are many strange hypothesis.
This! I’ve been talking about this with my friends for the longest time and they don’t believe me.
That chart shows a 1c change over the past 200 years which is still far less than what was experienced during Medeval Times or during the Roman Warming Period. Additionally, both warming periods brought prosperity to humans and their crops and plant life. It was when the warming periods ENDED that trouble started. Warmth is not our enemy, cold is.
You know he has to say this otherwise his channel will be cancel by the gestapo
Pretty good way to advertise a book. Im not much a reader and have been watching your videos for a while now without planning on buying the book. But with each video I'm a little more interested in life back then and am more tempted to get the book.
i have bought his book months ago. electronic version, but it is the same as printed version of course. i never regret buying his book. altough he describes and explain things i knew about greek and romans, i learned new things and it was not bad to relearn things i already learned, but was stored somewehere in my memory.
Great work as always!
I would like to hear how we distinguish between human global warming and what you have pointed out natural warming with periods of increased temperature.
I wonder why so many remain silent on it
Yay always enjoy your videos!
I'm reading a sci fi book set in the roman era that also has alien abductions!
It's called Phobetors Children if anyone is Interested.
Hmm interesting suggestion, I'll give it a try.
Love the videos. Just wish they were longer.
Um. That climate graph, commonly called the "Hockey Stick" graph, was debunked back in 2008, by two Canadian mathematicians. Consequently, that graph is no longer commonly used as evidence.
Perhaps, then, we should listen to the tens of thousands of scientists that recognize the reality of anthropogenic climate change.
@@apexerman1 or you could listen to the thousands of scientists who have bravely stood-up to criticize the climate activism. To declare the science settled, is to deny further evaluation, which is unscientific. Too many adults indoctrinated by Captain Planet et al. If one wants to know the right side of history, ask oneself: what takes more courage standing with climate activists or against?
@@christineparsons401 - Or course, the science isn't settled. The process is amenable to change with new information. However, the last COP26 meeting indicated that 99.9% of the scientific community have demonstrated the reality anthropogenic climate change from over 90,000 studies. Trillions of dollars are being spent by nearly every industry to remake our dependence on fossil fuels. That sort of investment would not occur if the research was unsound.
We trust science in a thousand other domains of our lives from Internet protocols to food safety to medical advancements. I cannot abandon that trust simply because I don't like the data or prefer to be riven by political concerns. We have an extraordinary task ahead of us. Let's adopt some of that Roman resourcefulness in the face of a crisis.
@@apexerman1 I guess we'll have to agree to disagree on this matter. However, I honour your willingness to stand by your opinion as you honestly see it.
I am totally picking up your book.
A very good summary.
I'd love a follow-up video...were there any particular cold plunges in Europe that, say, coincided with the fall of civilizations? (Likely caused by massive volcanic eruptions, or comet strike.) Thanks!
Yes, many times. Look up 536AD. which was considered to be caused by a volcanic eruption which cooled the planet and caused the Dark Ages.
Giant volcano eruption, which destroyed Minoan civilization. And marked the start of the Bronze age collapse. The nature occurred catastrophes at the time if 3AD Imperial Rome crisis, followed by the climate change at the time of the Hunns. Then smol Ice Age which started in 14th century, with great famines. A big amount of such stuff
So, the Roman era was on average 2 degrees Celsius warmer than today, with nary an internal combustion engine in existence. Nice.
But _only_ in the region of Rome, the rest of the world was not that hot. That's the issue that we're facing today, that the global average is rising.
No, Northern Europe was between 0.5-1 degree warmer back then compared to today. Many countries would prefer and prosper with a warmer climate.
Bury your head in the sand all you want. Human-caused global climate change isn’t going away until we make it go away.
Hey Toldinstone, love the videos. A really interesting question I have been asking myself, which I can't seem to find the answer to, is: How often did the Roman Senate meet?
It varied, both over the course of the year and over time. Under normal circumstances, the Senate met twice a month, on the Kalends and Ides.
Thank you for the video.
I was in Rome August, 2019-- hotter than h🔥ll. I can't imagine the temps back then. It's easy to see why the wealthy Roman elite retreated to their mountain homes -- I toured the ruins of some. Definitely cooler there.
We were there July 2019, so hot. They had an unusually hot summer in 2019, brutal.
@@tyleraltom6026 I have lived in Rome between 1986 and 1990. The whole five years. 1990 summer was so hot, Trenitalia had to cancel several train routes for quite some time due to train tracks being distorted by the heat. Hot summers in Central and Southern Italy are nothing new or unusual.
@@oliviertwist4955 here you get an award 🥉
I'm sure the Romans with their ingenuity found a way to create houses that stayed cool during this time period. If they could figure out central heating and indoor plumbing, then designing houses that stayed cool in the summer without the need for air conditioning should've been a walk in the park for Roman architects.
Modern Rome has a population over 4 million. Rome during the Roman Warm Period, about a tenth of that. The heat island effect of the infrastructure required of a higher population would likely make modern Rome somewhat warmer than ancient Rome.
Very interesting. Thank you.
Recent ice cores from Greenland showed the Roman warm period there was 3 degrees Celsius above today.
The Roman Warm Period also helped their opponents, as shown by Hannibal.
I thought the world was supposed to collapse if temperature increased by 2 degrees.
Well that's obviously a lie.
It's just climate hysteria.
Some "experts" in the 70s, 80s, and 90s said that the world would be unlivable by 2020. And yet, here we are and we're still doing fine.
Pollution on the other hand is a very real problem.
@@TwizzElishus Other "experts" claimed in the 70's that global cooling will turn the earth into an unlivable ice ball before year 2000. Pollution is a real problem, as well as wars, child molesting and everything you want, there's just no link with climate.
@@nicktamer4969 When you tell blatant lies you undermine any argument you might have made.
Maybe the global climate, but this video was about the climate in Europe and the Mediterranean.
It's crazy that you just posted this because I watched a 2 hr UA-cam doc last night about Rome and China first contact and this is like a nice little dessert lol
what is the name of that docu?
@@aka99 ua-cam.com/video/CO3senO4JZ0/v-deo.html
@@aka99 the channel is "Voices of the Past" the video is "Ancient China and Rome 1000 Years of Contact" or something
@@novalone3211 ah thanks!
Learn some science. Why are you people even watching a documentary if you believe everything is a lie that isn't farted pout of Trump's anus?
Finished your book great read! Cant wait for the next one.
I just found your channel and am currently binging all your content. this shit is like fucking cocaine dude, it listens like a collage lecture and i love to listen to those at work. have you ever considered doing a podcast so you can try out longer form content? theres always so much to say about history and so little time in a 10-15min video, it be cool to see you go more in-depth. You remind me of Dan Carlin actually, and i am starved for his content lol.
Fascinating! The links between climate and culture are interesting to explore.
For me temperature answers all our questions
Climate in roman times was warmer than today, we learnt it at school before Thatcher and Reagan formed IPCC in 1988 and so started climate hysteria. The fact that it's now impossible to say romans climate was warmer without minimizing it with a lot of stupidities ask more questions about our today's religious denying of science, than about roman's climate.
You do realize that even if your story about your learning it in school is true... Which one doubt quite frankly... Then a stupid teacher teaching you something wrong is not an argument for anything.
The data simply does not show that... And yes scientific data and studies... Not some teacher,... Hell do you confuse "some teacher told me" With science?
@@Dundoril If your belief doesen't fit with reality, change your beliefs. The question is how warm was Roman climate ? the answer is: warmer than today. Mediterranean sea was 2°C warmer than today, Alps Glaciers was 300 m higher than today, and romans covered all Europe with towsends of open air show venues (Theater, arena, thermes, circus, etc....). it's a fact. And it wasen't even a question before the climate inquisition appeared 30 years ago.
It’s pretty dry material to cover but thank you for making interesting. It goes to show that history isn’t just war and dates but even something that usually dismiss like climate has a big effect. Like how climate negatively affected Europe so badly in the 1600’s that there was scarcely a moment of peace for the entire century.
Mediterranean sea waters average temperature was 2°C warmer in the roman times than today. And it makes roman times the warmest period of the last 3000 years. As Toldinstone not allowed us to post links, just google: "Persistent warm Mediterranean surface waters during the Roman period", and you will find a recent study from italians and spannish university explaining that on Nature's web site.
I know its a different time period, but Mycenaean frescoes clearly show Mahi Mahi or Dolphin fish. Found only in tropical waters today.
@@raclark2730 There's something like 20 species of dolphin in the Mediterranean sea today, and wikipedia says Mahi mahi can be found sometimes in the Mediterranean sea, but yes, it make sens that when sea was hotter, there was more tropical fishes living there.
@@nicktamer4969 Ah cool, that would certainly be a prize for a local fisherman. Thanks for the info.
@@raclark2730 Shure, I found the Santorin's frescos you talk about. They obviously was good at Mahi mahi fishing.
Warmesr period only in a very small part of the world. That the whole point of the end of the video
But didn't the Rhine river freeze over in antiquity? I always was always under the impression that Germania had what we would consider Canadian winters today. Also, the northern coast of Africa was said to be far more temperate and fertile than it is today...
I don't know about the Rhine river, but as far as I know the Thames in London was frozen over 26 times during the little ice age.
In 2. century climate went considerably colder. One of the reasons that rome abandoned britain,
@@KK-xz4rk
Yea, that's correct, because between the Roman warm period and the medevial optimum there was something similar like the Maunder Minimum aka "the little ice age".
The fact that a river can freeze over can happend in all sort of climate. Last time Rhine was frozen was winter 1962/1963. The year after, in 1964, winter games in Innsbruck get close to annulation because of the worst lack of snow in the Alps during XXst century (games was saved by austrian army carrying tons and tons of snow and ice on the olympic sites).
@@nicktamer4969
The Thames was frozen 26 times between 1309 and 1814. Then again once 1963 and just recently in Feb.12 2021 again.
So yes, it can happen anytime, regardless the actual global temperature. But it clearly happened more frequent during the LIA.
You're using the graphs that have completely erased the Medieval warm period, when vineyards were grown in North England, something you can't even do today despite the graph showing that it is much warmer now than during the medieval warm period, and it erased the cold of the little ice age, when the Thames in London literally froze solid. What is wrong with you?
Is this linked to the expansion of the desert in Northern Africa. I know there are Roman cities, which are in way too dry conditions today to have supported large populations.
The Sahara turning into a desert took many thousand years and it began around 6'000 BC.
You show real science like proxy and then graphs that blatantly don't agree with it. Those graphs are based on computer models and they're adjusted to however the authors wish.
Gotta go with the sponsor
still, this video is interesting.
Roman warm period; Medieval cold period...yet no industrial revolution to blame.
seems like there are aspects of our climate that scientists dont understand...
sssssssh !!!! you are not suppose to wake up the NPCs !!!
According to this guy we are far warmer today than in the past, yet somehow vegetation that cannot grow as far north today as back then existed...I guess they were magical trees and plants?
Hush peasant!
NPCs don't know how to read a graph where the heat/cold cycles are way out of whack. Retards.
I have been to Rome and Naples many times. I always get pretty sweaty and stinky there.
Romans took weather with them, especially to nothern "barbaric" territories. Roman Villa Otiem was type of villa where building was in the shape of square with empty inner squre courtyard. this way building was protecting against winds and rain. It has to be large enough for sufficient sun to get into inner courtyard. often only small windows were on outer side of the quilding for protection and for heat retention.
Jamie, pull up the video of that polar bear getting hit by a wagon in the coliseum
My understanding is that the Greeks and Romans also depleted the soil through agriculture, deforestation, and goats, (which led to erosion). (although where I live, they use goats to keep the ski hills clear of brush during the summer months.. which seems like a good idea.)
Stop talking about deforestation. During antiquity and middle age, there was less trees than today in Europe. In fact, we don't know any period in the last 3000 years where there was more trees than today.
Thinking the world is born with a primordial big forrest that is now reduced by human actions is a fairytale. It doesn't work like this. The matter of Nature is not "Trees or humans".
@@nicktamer4969 all what i read about trees in antique times and mediavel times, led me bring to the conclusion, i have to agree with you.
The world has greened considerably with the rise of CO2.
Tony Heller and his videos points to evidence of temperature manipulation by a handful of scientists today. Cooling the past 100 years but warming the present.
If the warmer periods of the past were natural at lower levels of CO2 can someone explain why our period is not natural?
The Danes settled in a new land they called Greenland during the medieval warm period and farmed successfully until it became too cold.
England grew grapes to rival French wines. It’s too cold to do that now.
Haha Tony heller 😂😂😂😂 congrats you been scammed. You can connect the dots when there’s no food on the shelves
That's an impressive tree trunk at 2:00.
Somewhat related but, is it true that North Africa was not as barren and desert during much of early-mid antiquity? I’ve often heard it said that large parts of North Africa was to the romans a grassland with almost tropical characteristics that gradually became the desert that it is today.
Thanks
I love your roman videos about daily and mundane things!
BTW, I bought the book! 🙌
As with much of history, there is no one cause. The warm periods probably helped the Roman Republic in its early days with good harvests.
7:24 good way to put it.
What implications does higher temperature have on sea levels and therefore coast lines? Was this notable for any certain historical episodes? Eg battles
both sea levels and ocean currents can be and are greatly influenced (if not completely controlled by) temperature. indeed, it is probably the single most determining force in the movent of wind and water. temps are hot or cold masses that rise and fall respectively. e.g., when warm air from the south rises up and flows north, the cold air of the north rushes to the south - hot rushes to cold. cold falls. heat rises. the spinning of the earth, along with w/ influences from space and other atmospheric conditions, including the magnetic activity of the earth's core, generate such of these forces and proceed to move them about the planet. now the circumstances present themselves for mankind to both enter into and/or avoid battle, exploration, and conquering land, air, and sea. actually, the activities of man are dictated mostly by climate and weather conditions. you may safely cite pretty much the major portion of everything man has done hitherto, or indeed shall ever do! ; )
No. The sea level rise on average of 1 or 2 mm per years for 8000 years.
At roman times, sea level was more than 1 meter lower than today.
There's no records of sea level change during the differents warm and cold eras of the last 3000 years.
Sea level is not directly proportionnal to temperature.
Sea level and temperature diagrams are not merged.
Did ancient rome have snow? I dont know much about the climate there but i imagine its similiar to the other European countries. If so, how did they stay warm in the winter season? Because ancient romans are often depicted wearing togas or tunics, but surely its not enough to keep the warm right?
I know further north of Rome in Florence a winter day is in the 50F/10c range and often cloudy with frequent rain. Better than Minnesota but still not t-shirts and shorts weather. I can't imagine walking around a 10c day with drizzle with bare legs. Even the Northern Plains Indians like the Sioux/Lakota wore leggings in cool weather.
Many Mediterranean homes even in the modern times do not have any heating, especially in poorer areas. They can get pretty cold at winter time.
It snowed occasionally in ancient Rome, just as it does now. The toga was warmer than you might think, and people often layered their tunics and wrapped bandages around their legs in cold weather.
@@Cyberspine they have small stoves and ovens like in the old days of American homes everywhere, town and country. like the old wood-burning 'pot belly' stoves only not pot-bellied and more compact. they burn pellets also. they have peat fuel in Ireland - dug from the nearby bogs. in London today, many are using wood stoves again. one small stove can heat a room exceedingly well. plus you can cook on it. if you live in the American South, be advised that winters are migrating to the lower states w/ greater frequency, and getting a wood stove is a good (and maybe life-saving) idea. 2 'cords' of wood can get you through winter - be prepared! a pellet stove requires electricity to light its starter - so consider a woodstove if you have no generator. canned and freeze-dried foods last a long time. chocolate too! a few drops of bleach in a 5 gallon bottle of water (several) shall be good for washing for some time - at least 'til Spring!
One of the ancient Roman writers made fun of an elderly senator who was rumoured to wear 7 wool tunics at once (!) under his toga in order to stay warm; that said, layering tunics (2 or more) of fine soft wool was standard in cold weather. if you look at the 2 mosaics in this video 6:30 you will see farm workers wearing a long sleeved top under their tunic, and knee-high leggings or socks underneath the sort of knee-high sandals which we still call "gladiator sandals". Think of those farm workers as being dressed like traditional Scottish dress. Scotsmen were comfortable for centuries wearing woollen kilts and woollen knee socks. In fact, Roman soldiers stationed in Caledonia (Scotland)are on record as specifically requesting "woollen socks" as part of their army issue kit, to deal with the Scottish cold, so they could be as comfortable as the locals. And of course, Romans, just like every other nation, put on a cloak of thick wool when they went out in the cold.
So what you are saying is that Hannibal would have crossed the alps too when it were 2 or more degrees colder or that the northern boundary of the roman empire was not influenced by this?
Interesting video! Hope you had a great vacation!
Once again excellent research and very well explained!
Wouldn't a warmer earth support more trees and biomass?
The Romans would not have had the numbers to outlast other Mediterranean powers without the increased food from warming. The same thing happened in China where civilization expanded north.
Love how history is literally PACKED with 50-100 year periods of climactic change, often global in scale, and yet we insist that our current climactic shift is completely different, irreversible, and only due to human intervention.
It's called science.
@@rafaelrondon1813 People who talk about "the science", "believing in science", and the like rarely understand it as much as they claim to. No one said climate change isn't real and that humans played a role. I'm simply noting how we NEVER seem to bring up these longer term climactic shifts that are historically verifiable when we talk about climate change and mitigation.
And only solvable by implementation of massive, economy-throttling carbon taxes that transfer billions of dollars to the wealthiest and most powerful groups and interests on the planet... I guess there's nothing to worry about!
@@slinky6481 So when it comes to problems like national security or healthcare, it's okay to transfer billions of dollars to the wealthiest and most powerful groups and interests... but it's not okay for solving climate change?
The connection between carbon and global temperature was severed around 2008-2010 when carbon continued to increase in the atmosphere and the global temperature began to dip, which it continues to do as we head towards a new Ice Age. The warming period from the 20th century is now postulated to be from a total lack of significant volcanic eruptions. We have been in a volcanic drought for more than a century.
Where is the location of the photo at 1:43.
Interesting how the data shows 2 degrees of warming during Roman warm period in the northern hemisphere (not just Europe) and your graph does not include it. Tree ring temperature data has no significant correlation coefficient. It is useless in reproducing past temperatures. The current warming is also primarily northern hemisphere because that’s where most of the land is located. Ice temperature data is sketchy at best and only produces long term averages (hundreds of years and excludes melt periods entirely.
Everyone who is interested in the Roman Empire should read "The Fate of Rome". It's a great book that takes a fresh look at the Roman Empire using all the new scientific discoveries. The rise of the Roman republic and empire and it's fall were largely catalyzed by the climate.
Thank you, thank you, thank you for using AD and BC!
I knew I chose right subscribing to you.
in germany we say before christ and after christ. everybody know the year 0 is meant by that. AD or long Anno Domini. simply means in the year of the lord as you know.
@@aka99 I think he said that because now, people use bce (before common era) and ce (common era) instead, in order to achieve "religious neutrality" aka progressive stuff
@@lehendakari7022 well, i understand, but i prefer christ, instead commen era. i am fine with that.
But don't researchers nowadays say that the Roman Warm Period and the Little Ice Age of the Middle Ages were exaggerated events and local anomaly in the weather, which is why they had no effect on the climate and the Earth and therefore don't appear in modern climate curves?
🎶It’s getting hot in here so let’s take off all our togas🎶-Gaius Nellius
Yemen at that time had the same climate as Italy and they were known as the land of wine, this is also said to be where the three wise men came from and where the Garden of Eden is, on an island off the coast of Yemen. They call themselves today the people of the Queen of Sheba
Of course the warming of the past 150 years corresponds with the ending of the series of solar minimas, the last of which was the Dalton minima which ended about 1850 or so... Also during the Medieval warm period they grew wine grapes in northern England and olives in Northern Germany (per the historical tax and monastery records).... which we still cannot do as it is too cold.
The Roman warm period was a global phenomenon. For example, China was facing the same famine and drought during the 3rd to 5th century, leading to the collapse of Han dynasty, Three Kingdoms warfares, and later the invasion of nomadic tribes. It happened exactly the same time as Roman Empire collapsed.
Regional weather conditions is not the same thing as global climate. they know that these temperature rises did not apply to enough places to be considered global.
Where can I read the account of Roman merchant's in China? I thought the closest the two got were just vague ideas of each other because the Parthian's kept getting in the way of things.
hmmm, read the wikipedia article about sino-roman relationships and google for ancient romans in china
i say the most precise method is to find out where the best wine came from. the farther north, the warmer the climate.
Well Britain was warm enough to grow grapes during the Roman period, so must have been much hotter then.
Yes the graphs and his words dont make sense together. He says it was more than 2 degrees warmer then and we are now only 1.4 degrees warmer but graphs do not show the rise then as big.
We grow grapes and make very good wine now in he UK. Have done so for decades.
Wierd how the graphs you provide do not match the historical trivia you provide.
I consider it a major scam that the much talked about temperature rises are always compared against particularly cold period. If they were scientific they would compare today's temperatures with the average temperature of the nineteenth century, (not just the coldest).
So let me guess... You believe climate change is a hoax, viruses are a hoax, the Earth is flat, Trump is divine.
the Mediterranean climate is fantastic and unique
Wasn't Egypt and most of North Africa also pretty wet around the time the Romans were there?
A coin of Pontius Pilate has 2 wilted barley leaves showing the climatology of his governance
sounds like HEAVEN!!! . . .
So you’re telling me that we found evidence in the RINGS OF TREES of specific temperature changes that made it easier for hannibal to cross the alps? And another suggesting a drought in hunnic lands? The world is insane!
Yes, that’s exactly what tree rings can tell you.
How did romans keep warm in winter?
personal carbon footprint is often a joke, but i get thats how they get ya. Planting 10 trees a person is amazing tho. And as always, thanks for the history.
Depends on where you were at
Damn I don't know about registering my carbon footprint so they can tell me if I can leave my house or not nah I'm cool with that
Classical horticulturalists knew how to grow plants in cooler areas.
Glad to see my fave history channel getting sponsored. We’re moving up in the world!
App sounds cool.....now let make one for all the multinational corporations spilling oil into our rivers.
Seems I heard about a study years ago linking roman lead smelting to regional climate change. Can't recall the source. Great vid as usual!
As a Brit I've long thought that while global warming is a tragic fact, I think we in Britain have done enough work over the past few hundred years, we a deserve a return of warmer temperature and Mediterranean like lifestyle. If (fingers crossed) we do manage to reduce or reverse global warming I guess I will just have to move south
The climate warms up but, not due to human activities. We will all witness that in the next few decades. The Western populations will suffer lowering of living standards and the poor nations' economic catch up will also slow down due to implementation of so called greening programs and the climate will continue to change as it does now without listening to the climate change ideologues prayers.
Have you ever wondered why in the movies it's always summer in Rome?
Does a high carbon atmosphere and warm weather yield more plant growth. That is the question
Judging by the evolution of their clothing, it seems it was a lot warmer 2,000 years ago. The Romans hated pants, and no way they are running around in Tunics sub 40°
We American geologists pronounce it: Qua-TER-ner-y.🙂
Also, the climate in North Africa was completely different from today
And yet the famous Roman dole of grain to the poor was grown in north Africa and shipped via Carthage and other cities. Cleary, in Roman times north Africa was fertile and not a desert.