Besides eruptions, many other scarier events can cause huge shifts on the planet's thermal equilibrium including our current state of global warming or many other unknown events (like whatever happened to cause the Younger Dryas [1] "only" ~13k years ago which is theorized to have been either a mega eruption, impact event or stellar supernova).
It's pretty scary and definitely not something that we're at all prepared even with all our technology so we're basically in a permanent state of risk of complete reset which is guaranteed to happen eventually. Sadly it's not something most of us spend too much time thinking or preparing for. I guess this is largely because we live very short lives and that make these kind of events appear much "larger than life" so they go mostly ignored except for some underfunded science departments or the occasional billionaire. To me this is the main reason that going multiplanetary or space habitat based is basically the only way to escape this inevitable doom even though that is also a huge barrier to overcome on so many levels.
[0] https://en.wikipedia.org/wiki/2010_eruptions_of_Eyjafjallaj%...
Effectively the time when it is useful is "when we don't have cheaper alternatives yet". We still should strive to make renewables and storage the cheaper option though.
To get really pedantic our 20th century understanding of power and energy are exactly backwards colloquially from what is really provided. Power is energy over time. The "power" infastructure was actually largely an energy infastructure with the exception of say hydro electric dams - you can only burn fuel once no matter how clever your ability to extract it. Meanwhile "renewable energy" provides power over its period of existence.
There will plenty of metals on the surface. Use the wood to melt iron. Use iron to make saws. Use saws to cut trees into beams and planks. Use beams and planks to build windmills. Use windmills to generate power and electricity. Etc.
Using coal and oil we went through the part from using mills for power to where we are now in about 250 years. On the one hand, if knowledge is retained, that can be sped up. On the other hand, it will be a lot harder to go through that process without coal and oil.
I would guess the net effect will be that it will take longer, as one of the effects of not having coal and oil will be lower yields in agriculture and, hence, a much smaller world population that also has to make a bigger effort to produce food.
Not just that, but there's no way to sustain the level of human development (and population) we currently have without continuing to feed the energy beast. Our daily burn rate on oil/gas/coal is so profoundly high, and growing, that a) nothing can fill the gap; and b) it can't be shut down without condemning further development (esp. in Africa, India and China). Two disconnected factoids to illustrate the level of dependency and consumption we have today: without ammonia synthesis from fossil fuel, worldwide organic fertilizer stock could sustain only about 4bln people - globally; China in-serviced more cement (which requires fossil fuels) in like five years than the US did in the last 100 years.
To reduce carbon output, you need to switch coal use to natural gas where possible. That's the best near term solution right now - isolate coal and oil consumption to the industries that really need them - e.g. transportation, manufacturing - and work on alternative sources of electric generation, i.e. hydro where available, nuclear where not, unless some miracle net-positive and reliable electric generation method becomes available in the meantime.
Not usually a fan of us vs them mentality, but your use of "we" here feels bad. Surely, it's all of us that use these resources, nobody on HN is self sufficient (please be the exception). But at the same time, most of us aren't getting much of the "cocaine" here, at least relatively.
It would almost be reasonable to say "They are effectively draining our planetary rainy day fund and spending it on cocaine".. whoever they are. The ones with cocaine mustaches presumably.
EDIT: Someone paid a lot of money to make this not an "our" choice but instead a "their" choice. If you feel like this is something you have any real control over, I urge you to change things.
Eyjafjallajökull was only VEI-4.
Now, one can argue about how Eyjafjallajökull caused ashfall in most of Europe, while Pinatubo is in the Philippines, but given the extent of ashfall from Pinatubo ..
EDIT (forgot link): https://en.wikipedia.org/wiki/1991_eruption_of_Mount_Pinatub...
I disagree with this. Leaving the Earth doesn't remove random acts of doom from happening, and in fact, they are more lethal in unfamiliar and hostile environments.
If we do not figure out how to handle such black swan events on our home planet, we have no chance of handling them in space or on other planets.
Granted, this doesn't cover bigger black swan events like gamma ray bursts, where the entire solar system is screwed, but it'll at least help with Earthside apocalypse.
The fact that we couldn't handle it is indeed incriminating against our abilities as a species, but as they say, perfect is the enemy of good.
It would probably also require a change of culture, away from treating information as property and/or trade secrets in favour of open-hardware with shared designs. Designs would be shared and manufacturing decentralised, to improve robustness.
Putting people on Mars, and then other solar systems: Backups
A massive global famine could kill a billion humans or more. But if the 1 in 10 of us (likely the poorest, most vulnerable people) died, would civilization end? I don't think so.
However, if that leads to all out nuclear war, then we have two enormous correlated shocks to the system. Maybe even that wouldn't be enough, but some number of such shocks could push us over the brink.
Just like an economic meltdown or a plane crash, it's never one thing that goes wrong, it's a sequence of failures.
My understanding is that the current leading theory is a drastic shift in outflow of Lake Agassiz (an expanded version of Lake Manitoba in Canada).
[0] https://www.pnas.org/content/pnas/108/1/40/F1.large.jpg
[1] https://capeia-usercontent.s3.amazonaws.com/uploads/2019/07/...
I'm thinking this way because of our current situation with the corona virus. Initially people were all into doing everything to protect themselves but as time goes in, we kind of get used to living our lives around the existence of the pandemic and the videos of people dropping dead in china aren't going around anymore.
After COVID-19 shut down supply chains, there were some problematic delays, but seems like we quickly recovered. If the entire planet's crops were wiped out, we're all just SOL if we don't get canned goods in time? If we had 12 months notice, could we as a planet get it together? 6 months? 3 months?
Is there forecasting for volcanoes? (looks like yes: https://volcanoes.usgs.gov/vhp/forecast.html) How often do geologists cry wolf?
One of my favorite sites for tracking Volcanic eruptions is: https://www.volcanodiscovery.com/volcano_news.html . It provides real-time updates on volcano advisories.
I would say we're still very susceptible to a supervolcano eruption. There is no stopping that level of force. It can dramatically shift the climate for years, if not decades. And it would be catastrophic for crop production. I suspect we would need to move a large portion of our crop production into greenhouses and growhouses in order to survive that level of event.
The bigger problem is the lack of any economic or physical contingency planning. There was some medical planning of a sort for a pandemic, but there seems to be no economic planning of any kind for catastrophes.
National governments seem to have improvised economic solutions to COVID with varying degrees of competence and success.
This is negligent and inept. Catastrophes are more or less guaranteed, and there should at least be some thought given to making sure that the first thing that falls apart isn't the national economy.
On the other hand...
Getting food to eat was never a problem at any point. And today, reliably getting meat, chicken, dairy, paper products even if not exactly what you want, most baking supplies, etc. is pretty much a non-problem.
The initial shock has past, and consumer product makers have had plenty of time to do whatever they were going to do.
"Recovery" is a word that sets up certain expectations. It seems to me that what happened during the first half of this year is more usefully considered "change".
Huh, so that is why Google Maps keeps asking me whether TP was in stock every time I go the store - I did not realize there were still actual shortages on that elsewhere, I thought it was just a couple of days of panicing in March and that Google was just being weird / behind the times.
FWIW, I haven't noticed such disruptions here (Finland) since March, so it probably varies a lot regionally.
So it presumably has something to do with how US supply chains work compared to, say, Europe rather than being solely caused by the COVID-19 pandemic.
I understand that this is/was not the case across the country, and I have been a bit baffled about that. (Although I do recognize the supply chains to restaurants and to corporations (TP) and to grocery stores are not the same and don't easily switch on a dime. But, we have meat and yogurt and eggs and milk on the shelves, but some friends in Connecticut or NYC, for example, say that they do not. And I can not understand why.
On a less likely and more extreme level, Yellowstone has erupted 3 times over the past 2.1 million years [2] and there are other known supervolcanos [3] on Earth.
[1]: https://en.wikipedia.org/wiki/Eyjafjallajökull
If you haven't listened to it, the one on the Siege of 717 deserves it's own bowl of popcorn - super super entertaining.
I loved the original The History of Rome podcast that goes through to the fall of the West, but I think I've come to prefer this one even more.
The first few episodes require a little patience as the author gets his footing - but it pays off. Awesome podcast.
[1]: http://gen.lib.rus.ec/book/index.php?md5=F33DA79F872937C22C8...
Except that Constantinople had essentially continuous government dating from the 300s AD until it was sacked by the army of the 4th Crusade in 1204, whereas the Holy Roman Empire's first emperor--Charlemagne--was crowned in 800 AD, some 324 years after the dissolution of the Roman Empire in the West. The Holy Roman Empire of Charlemagne was, as you imply, an entirely different beast from the original Roman Empire.
Finland!
The Roman Empire was home to many different ethnicities and was ruled at various times by different ethnicities. Latins, Greeks, Armenians, Arabs, etc.
Even the Ottomans considered their empire a continuation of the Roman Empire – one of the Sultan's title's was "Caesar of Rome". So you can add Turks to that list too.
> 536 Icelandic volcano erupts, dimming the sun for 18 months
I’m not aware of any evidence that the 536 eruption happened in Iceland. Ash has been found in both Antarctica and Greenland indicating that the eruption was probably much closer to the equator[1].
> 541–543 The “Justinian” bubonic plague spreads through the Mediterranean, killing 35%–55% of the population and speeding the collapse of the eastern Roman Empire.
The Roman empire stood for another 9 centuries after the Justinian plague. I was under the impression that Justinian the Great had overextended the empire in the sixth century so it naturally shrunk to a more manageable size.
1: https://kvennabladid.is/2018/11/20/ekkert-bendir-til-ad-risa... (Icelandic)
The Justinian expansion was untenable. If you look at it on the map - there are strong enemies on literally all sides. It was a desperate but hopeless attempt to regain the Western Empire.
The plague made it worse - but was hardly the catalyst. ...and the East Roman Empire was far more than a city state for a majority of the remaining NINE centuries.
but there is not yet a smoking hill in Iceland identified for these events:
https://en.wikipedia.org/wiki/Extreme_weather_events_of_535%...
See compare this to the 1783 Laki eruption which caused similar weather events. Unlike 535, the weather events from the Laki eruption were limited to the Northern hemisphere.
It is much more likely that this eruption happened close to the equator, where evidence erode much quicker and the ash has an easier time effecting the two hemispheres.
Fascination aside, this is another one of those sobering reminders that whatever I spend my time on as an engineer might be worth absolutely nothing in the near-term, and that's a bit frustrating. What could I be doing to help engineer a better world for future generations? How do I optimize my individual talents so I can achieve the most impact in my lifetime? How do I find the right team of other humans to work toward this? Convince others or myself that it's a worthy cause? (I could care less about legacy or personal comforts/gains - I just want to help humanity move forward, not maintain it)
God help us all.
Humans are stupid. We think that because we survived the Cold War, that it won't happen. ...but if you read the history - it very nearly did happen a couple of times. ...it's only a matter of time.
I'm pretty sure everything that's happened is his fault.
"The repeated blows, followed by plague, plunged Europe into economic stagnation that lasted until 640."
Imagine the kind of horror and suffering that a century of global economic stagnation inflicts on generations of people.
What's.......our intended process for dealing with this?
Are there any technical solutions for dispersing ash from the atmosphere?
I know this is a stupidly naive question to some degree - how do you prevent acts of god, but I am curious if someone has thought about it.
Read up on Yellowstone, for example -- AFAIK it's "due for a big one" but it blows up so infrequently and so catastrophically that there's no real plan other than "maybe think about not living in North America."
But hey, volcanic ash is a coolant for the climate -- a few well-placed eruptions could do some good, on a global scale (sorry about the locals)...
>Although fascinating, the new findings do not imply increased geologic hazards at Yellowstone, and certainly do not increase the chances of a 'supereruption' in the near future. Contrary to some media reports, Yellowstone is not 'overdue' for a supereruption.
https://en.wikipedia.org/wiki/Yellowstone_Caldera#Volcanoes
www.nationalparkstraveler.com/2014/01/reactions-yellowstone-supervolcano-study-ranged-hysteria-ho-hum24449
[0] https://www.usgs.gov/faqs/yellowstone-overdue-eruption-when-...
Same as other existential threats like asteroids. Spend a relative pittance on monitoring, not much else.
in the event of something like this, having the supplies to just weather the fallout would be best. a years worth of supplies on-hand would be a good start.
That may be, but the set of things that humans can prevent gets larger over time. For example, 100 years ago, an asteroid hitting the earth would be an act of God we could do nothing about, but today it is at least within the realm of possibility that we could observe a large asteroid on a collision course and send in a spacecraft or missile to divert it. https://en.wikipedia.org/wiki/Asteroid_impact_avoidance
humans are really bad at conceptualizing the risk from such events. we are also overdue for another major solar geo storm (ie. like the carrington event).
Seems like the dispersal of the ash is the problem, and you'd want to be collecting it.
The extent of the USA's preparedness, from the federal agency in charge handling Emergencies, is a website with a bullet point list of what you should have in a first aid kit in your house:
I'm being only partially facetious. There are of course multiple agencies at the federal, state, county, and local level with their own plans and processes in place for this kind of thing.
But! We can look to the past for what would happen.
Katrina taught us that the US federal government doesn't have the resources, means, or disposition to rescue people from disaster zones. It also taught us that as an individual or family, the best thing you can do is take evacuation warnings very seriously, and be ready to be able to provide for yourself and your family for the short and long term. So, ready.gov build a kit, and stuff it full of cash while you're at it. Keep the cars gassed up.
Katrina also taught us that the US government will choose to enforce "property rights" before it will ensure people in disaster zones have shelter, water, or food. You could flip from one channel with a helicopter view of people waving for help on a roof, and another channel would be showing National Guard soldiers with rifles chasing off "looters." Hm.
The COVID pandemic also taught us that partisans and capitalists are motivated to prioritize the wellbeing of the stock market over humans lives - all the more reason to prepare to protect yourself and family rather than count on the Gov coming to your aid.
I'm not saying the homesteaders and preppers aren't a little crazy, but I'm also not saying they don't have the right idea...
The population of New Orleans alone is 1.5 million, so 1‰ of the population died.
That's a pretty small number, and tells me that society coped just fine.
Crop failures caused by volcanic eruptions, which kill 50% of the world population, is a far bigger issue. It is also something mankind will recover from in a couple of generations.
In fact, we never really have. Initially, only free, white landowners could even vote!
Edit: ah, found yet another “thing you can’t say on HN,” I suppose. :) Talk about lack of TP in stores: +6. Talk about how our “representatives” don’t represent most of us: -2
My plans to stock up on survival supplies and buy a little bug out property in a remote spot have gone from "wouldn't that be neat?" to "maybe it is time to set some money aside and start building up a savings for this" pretty quickly.
IMO that's the main issue with those hoarders. You can hoard as much as you can, but local gang will expropriate everything.
So may be it's better to stock guns and bullets...
But, if they were being logically consistent, anyone arguing for a 12 month supply of rice and beans should also have:
- Headed for a place in the hills/woods
- Stocked up on guns and ammo however unpopular an opinion that might be in certain circles
- A generator and gasoline
- Lots of large containers of water
- Seeds/tools/etc.
The list goes on. It's one thing to guard against short-term disruption to supply chains. It's another to basically guard against civilizational collapse. And if you just hoard 12 months of rice and beans in your suburban, much less urban, apartment, you're way overdoing it for the former and not preparing at all for the latter.
So there's a very significant annual cost to maintaining that perpetual one year supply of necessaries.
Probably could slim down and live off half that. Or 500 cal/day for adults with more for the kids. It is survival situation after all.
Whether it might be uni- or multilateral is also interesting, given the possibly serious effects on e.g. agriculture in "downstream" geographic regions. It's not much of a stretch to imagine it kicking off some kind of war.
https://www.bloomberg.com/news/articles/2020-06-03/solar-geo...
More seriously though, I think there are better and more economical ways to combat global climate warming.
Hastening its collapse several centuries later?
So few human institutions have lasted 917 years, it's hard to compare this claim to anything. It's a little bit like arguing that the sack of Rome in 390 BC was a mere precursor to the one that took place in 410 later, or like arguing Charlemagne and the Carolingian Renaissance helped hasten along the Italian Renaissance.
We need geoengineering now. If a volcanic eruption occurs and blocks out a significant portion of light, we need a way to compensate for it(solar mirroring/concentration?), or eliminate the particulates.
Considering when the ERE "fell", the plague did a pretty poor job of hastening it's collapse, no?
> The Plague of Justinian (541–549 AD)
> The Byzantine Empire, also referred to as the Eastern Roman Empire..[was] in 555 under Justinian the Great, at its greatest extent since the fall of the Western Roman Empire.
> It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Empire in 1453.
The article indicates that the plague killed 35%–55% of the population.
Eg. After this period, in the early 600's, Slavic tribes migrated south, all the way to Greece/Egean sea, but eventually were pushed back to current/modern areas....
So, these events contributed heavily to even modern borders and some events....
I know, there are some weird post-modernist movement to say 'dark ages were not that bad', but indeed, these were some of the darkest/harshest time in our recorded history....
The volcano being in Iceland, could explain on why Britain was one of the harshest hit areas by the dark ages....
I'm still inclined to believe that this is just nowadays optics. The life was very harsh in general for pretty much all but recent history. There were a lot of life risk vectors all around and the capacity to do something about that was modest at most. For us looking back only the major events stand out -- the pandemics like the black death, the major depopulating military campaigns like that of the Mongols, or the climate altering events. People died of diseases, wars, famine, or whatnot all the time though. Not just a few here and there like we see nowadays, but community-wide wipe-outs, with survivors having no-one-they-knew left alive. I doubt that for them it made much difference that the faced calamities were limited only to their region or were world spanning, or that the cause for the latest bane was this or that out-of-control event.
slightly orthogonal to this, but the original motivation behind the 'dark ages' label was that for large parts of europe there are very few written records for the 5-7th centuries. e.g., we know practically nothing what happened in 5th century england because the only written source -- gildas -- is mostly concerned with pontificating about sinful behaviour in artful ways. even some actual people he mentions in passing get biblically coded nicknames so we have to make wild guesses who's he referring to. and that's our only source for pretty much a century.
https://www.princeton.edu/news/2019/12/02/maybe-first-plague...
https://www.semanticscholar.org/paper/The-%E2%80%98Justinian...
I dunno, sounds like 541 was the worst year to be alive. That year also had a second volcano eruption according to the article.
> Summer temperatures drop by 1.5°C to 2.5°C
While I now understand that it means a drop of roughly 2°C plus or minus 0.5°C, my initial reading was that the temperature dropped from 4°C (in the previous Summer) to 2.5°C (in Summer of 536).
Is the meaning of "a drop by A to B" always to be inferred from context?
For your interpretation: "drop by X, to Y"
For author's intention: "drop by X-Y"
It took a few reads and an internal debate over whether European summer temperatures could possibly have been 4°C in the 6th century to understand what the author meant.
Yikes! What can we do to make sure that doesn't happen again? Oh, right, nevermind.
The fact that the book won awards from NYT, Royal Society of Literature, BBC, and many other publications and is well-reviewed, yet Wikipedia only lists negative feedback in the Reception section indicates to me that there must be bias in the Wikipedia article. I don't see any other answer for why more than half of the article is just listing criticism that doesn't seem to be reflected across the broader industry.
Again I haven't read the book and don't really care about the subject matter either way, but the Wikipedia does not seem to hide its bias.
The page in incognito: https://i.imgur.com/EHhGjJ9.png
The page with uBlock, sticky elements removed, and the sidebar removed: https://i.imgur.com/mNJFMyj.png