Without Volcanoes, Earth Might be Dead
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- čas přidán 13. 04. 2021
- This episode is brought to you by the Music for Scientists album! Stream the album on major music services here: streamlink.to/music-for-scien.... Check out “The Idea” music video here: • The Idea, written by P... .
You might think of plate tectonics as destructive since it's the ultimate force behind earthquakes, tsunamis, and volcanic eruptions. But the slow movement of our planet's surface does a lot more than shake things up now and then. Some scientists think life may never have survived without it!
Hosted by: Stefan Chin
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How Tectonic Plates Shape Life... and Vice Versa
Life Might Never Have Existed Without Volcanos
Without Volcanoes, Earth Might be Dead
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Sources:
arxiv.org/abs/1706.10282
www.sciencedirect.com/science...
agupubs.onlinelibrary.wiley.c...
www.scientificamerican.com/ar...
www.nature.com/articles/ngeo2707
www.sciencedirect.com/science...!
www.sciencedirect.com/science...
www.sciencedaily.com/releases...
arxiv.org/abs/1712.03614
www.sciencedirect.com/science...
www.sciencedirect.com/science...
www.bbc.com/earth/story/201701...
theconversation.com/does-a-pl...
www.hou.usra.edu/meetings/hab...
agupubs.onlinelibrary.wiley.c...
www.sciencedirect.com/science...
citeseerx.ist.psu.edu/viewdoc...
www.ncbi.nlm.nih.gov/pmc/arti...
citeseerx.ist.psu.edu/viewdoc...
www.britannica.com/science/ig...
www.sciencedirect.com/science...
Images:
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
www.eurekalert.org/multimedia...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
This episode is brought to you by the Music for Scientists album! Stream the album on major music services here: streamlink.to/music-for-scientists. Check out “The Idea” music video here: czcams.com/video/tUyT94aGmbc/video.html.
Senpai I'm your biggest fan
Thankfully massive swings in CO2 concentrations don't effect downwelling IR radiation all that much so we'll be fine. Besides plants are doing better now that is more CO2 in the atmosphere and beyond that the atmosphere has actually been cooling recently (over the past 120 years which is a geological blink and even so only by a tiny about YoY).
This music is great!
55558DRCLIMAX10
Hi my name is not arlene My name xander and I'm a kid and really want to know everything
It's incredible that we were barely teaching about plate tectonics by the time we were sending men to the moon. Nuts!
no thoughts, just shifting plates on a giant rock flowing through space
Return to monke
hey emily
hey Diddkong7
@@justindavis3623 reject homosapien
hey @@icomeinpeace2717
Very interesting. I never figured that the relationship between tectonics and life went the other way
It's nice to see crossover between the different scishow channels. This definitely felt almost like a scischow space video!
Im a geology student, so when I saw this video in my suggestions, I IMMEDIATELY clicked. 💗 Gimme the rock knowledge.
Well I hope it rocked you 😂
Gneiss
those are minerals marie
Rocks! Heck yeah'
Hard science
Looks like it's time to watch the "history of the entire world, i guess" again. Idk why, but whenever I hear "The sun a deadly Lazer [sic]" and "the cambrian explosion" I just have to rewatch that video again lol.
I feel this at a personal level. lol
Can you do a video on Iceland and the ongoing eruptions? It is so beautiful... and life giving!!!
Stay safe, stay sane, be well
Well, they didn't start up so I've been told due to other eruptions you know a chain reaction type thing?
@whesley hynes, W T Front panel? you need some serious counseling or prison time dude
I took geology this semester and plate tectonics is the most interesting topic
I took a Geology class this past semester and I learned more from Scishow than from my class
I literally took an exam on this exact subject last week - the volcanic carbon cycle and everything! Wish I had this as a review video then!
@@mekaylasullivan51 either you didnt pay attention or you have a shitty teacher...
Edit: have = had*
I loved our field trip to see the San Andreas fault! I still enjoy the topics decades later.
It's the most moving subject in the field. /s
Tectonic Plates may also be why we have so much water. A recent study indicates that water gets constantly embedded into the crust and as that continues, all the the liquid water would eventually disappear; but Plate Tectonics changes that is it continually liberates the water from the crust - mostly via volcanos. Mars (which does not have Plate Tectonics) may have lost its water not to space, but rather to its crust.
Plate tectonics plays a vital role in the carbon cycle and water cycle here on earth. As well as other minerals and compounds described in this video. And while we are fairly sure water is trapped in the crust of Mars. We are also reasonably sure surface water was lost mostly to space. Without tectonics to cycle the water into the crust. The past volcanic activity would have removed much of it from the crust. Without a clear mechanism to replace or reintroduce it to the deeper subsurface. This may also play a part in the current dormancy or extinction of Mars volcanism. We will learn more as we get more data. Specifically seismic data over the next few years.
Who knew headstones and countertops were so special? Don't let this information get out, they'll raise their prices.
Fascists raise taxes. Fascists make extra laws. Fascists can only rule when the people are kept stupid and poor through racism, prejudice, fear, and vote fraud.
Plot twist; Plankton created earthquakes as an attempt to get the Krabby Patty formula :^)
Touching the granite countertops and going "earth rocks..." rn
It's like if everything that happens on earth today is intrinsically connected to what happened in the past and cannot have happened without said past.
Sci show doesn’t have a episode on why we get chapped lips even when well hydrated :(
Any chance that you'll cover the Brood X cicadas on the east coast? 17 years until your next chance!
"You wouldn't think that plankton can make a difference on something the scale of a whole planet." Um.... Oxygen catastrophe, anyone?
I think he meant the actual planet and not on a worldwide scale. Of course life can have an effect on other life and atmospheric conditions but the fact it can literally change the planet itself is astounding
@@bobthegoat7090 Check out the Oxygen Catastrophe - we already knew that microscopic life could and did literally change "the planet itself". Just as one point: Until photosynthetic life existed, metals like iron in their reduced state could exist on the surface because there was no free oxygen. Afterward, they couldn't for long. That's not to mention that atmospheric conditions are part of the planet itself. I think you meant something like ..."change the lithosphere..." but life changed some of the fundamental building blocks of the lithosphere merely by breathing. Much of the iron and steel our civilization uses ultimately comes form banded iron formations that were created by cyanobacteria.
We LITERALLY just started our plate tectonics unit :)
Use a peer reviewed paper instead of a CZcams video.
A compilation video on all things volcano would be great, particularly because of all the interesting things ongoing at the eruption on La Palma in the Canary Islands. Your back catalog on this is great, btw
Only oceanic plates experience subduction - I know I knew that, but had never heard it be put so bluntly, very helpful, thanks!
While it is true that on the border of an oceanic plate and a continental plate it is the oceanic plate that is subducting, continental plates can subduct under other continental plates. This is how the Himalayas formed.
@@KukulcanCan Thanks - you learn something, and something else pops up!
@@KukulcanCan I think continental plates stay relatively close to the surface because of their density though. Even if one goes under the other, neither will get pushed deep into the mantle like oceanic crust.
@@KukulcanCan I don't understand why the ocean floor would lock water under it and why that same ocean floor would subduct under basalt. Seems like the basalt would subduct under the ocean floor.
@@danielculver2209 I think the velocity plays a big role in this outcome the former Indian continent was moving fast relative to typical tectonic plate motions and given the timing of that very rapid motion and its fairly antipodal position relative to the Chicxulub impact that might not be a coincidence. There was an acceleration of tectonic activity a little over 1.8 billion years ago also coinciding roughly with the Sudbury impact the last verified impact comparable to the one that ended the Cretaceous and there is a spike of major craters events on the Moon around the Neoproterozoic so those might bee related.
Always love learning new things
Alan Dean Foster wrote an entire 3 book series that partly hinged on plate tectonics, though not in the way this video explains it. This video suggests planets need plate tectonics in order to have life. Foster suggested that tectonically active planets produce aggressive intelligent life while dormant planets with a single supercontinent produced calmer intelligent life.
Neat video! Thanks for uploading!
More geology please :D
Can you guys discuss the expanding earth hypothesis/theory? I do not understand how crust subduction happens when the material underneath it is denser.
Is the mantle denser? What happens when you heat things? Does that make it denser than a like or same material cooled? So which will be denser? The mantle or oceanic crust? Think about that for a moment.
The expanding earth hypothesis is an outdated falsified idea that has the earth expanding. When current measurements show (even though we receive about forty-three tons of dust and rubble a day from space) the earth is slowly contracting as it cools. Oh and that dust and rubble (Impacters like meteorites) will only add (If memory serves) a millimeter or so on average per year to the earth's surface. In short, there is no more evidence for expanding earth than for flat earth.
@@zed1stwizard Usually heating things up makes them less dense, but what about all the pressure the mantle receives from the crust? Would that not also increase its density?
A millimeter per year doesn’t sound like much, but when you multiply by millions, it adds up. That would be a radius increase of 1 kilometer per million years,
And 1,000 per billion (obviously, the radius increase would slow as the planet expanded due to surface area:volume ratio, but you get my point).
Don’t tell people how widely discredited something is without telling them why; it only makes them want to look more into it, which is usually a bad a idea since most people don’t specialize in geology (myself included).
Moral of the video: "We shouldn't take things for granite, Morty".
That is very interesting. I thought plate tectonic was due to convection from the upper mantle, but I learned it wasn't always a thing watching PBS eons.
However, I have a problem with the theory that life is responsible for plate tectonics. If I can see how life can accentuate plate tectonic once it's started, I don't see how it can make it start in the first place. If you have no plate tectonics, what is doing the subduction? What is putting the stuff life is accumulating in the oceans and on earth back into the mantle?
Interesting to think about! But some studies have found that the earth didn't always have 'plate tectonics', it might have had a 'stagnant lid' tectonic system, where the plates didn't move but stayed still. Subduction still occured though, as slabs of the denser crusts sinked down into the mantle. Still very controversial though haha
I’m more likely to buy a book called “Science Stories for Scientists”. I’ve got other places to look for music I’m going to enjoy.
It’s definitely one of the weirder sponsors I’ve seen.
@@OakenTome I mean if I was offered money just to talk about “top 10 toilets” or smthn in a video basically I’d accept quickly
The name is what puts me off. I'm not a scientist so and I'm not going to pretend to be one... so yeah.
just good music for autism spectrum
@@edwardcarrington3531 hopefully you don't mean this in a derogatory way, if you do, then get off this video, but if not then yes. Yes this music is the best lol. But definitely the weird name is like wtf.
There must be a nearly unlimited ad budget for that album...
Pandemic-guy makes SciShow on his pajamas; working from home has its advantages.
thank you for the knowledge, easy to listen to :D
Being Irish I'm a lover of the volcano as 65 million years ago a huge volcano made Ireland. We should pray to volcano's, the real life giver.
Our planet seems very special indeed.
On most days I see humans as animals living off the earth and see earth as this passive background that live on. But every once in a while I see and appreciate how we come from and are earth, everything around us, including us, came from here. It all came from the elements contained on this ball floating thru space. The idea of Mother Earth is 100% accurate. For some reason this video triggered that change in my point of view today and I get a little taste of childlike wonder again
Earth Child💛
Literally just had an exam on this stuff last week!!
It also recycles the ground and replenishes the earth with new minerals.
I love learning about rocks! But then again, I like learning about most "sciency" things. Nice episode! 👍😊🌍🌎🌏
We can't take granite for granted.
Thank you
Planet Earth: "Hey, Life!"
Life: "Yeah: what?"
Planet Earth: "You rock!"
7:24 he wanted to do the pun :)
This beat is... This beat is...
This beat is Tectonic...
Old tecto song from the 1990s.
Thanks for always making great video during quarantine :)
In biology there is no "phosphorous" (highly chemically reactive), only "phosphate", which is the most abundant intracellular anion.
there should be a crash Course Geology series
Correction: granite formations have been identified on Venus, which is part of the evidence used in making those hypotheses that Venus once had plate tectonics, but lost it with the planet's oceans boiling away.
Earth is already known to NOT be the only planet with granite.
They don't joke when they say life is a delicate balance
I thought earth has tectonic plates from the wait of the
Oceans and what about pulling of moons and other planets
Granite and basalt differ mostly due to Si and Al, not carbon.
To immediately jump to the conclusion that life influences plate tectonics is a HUGE claim, and would require much better evidence before reaching such conclusion.
I HAVE A THEORY, that life ,Cyanobacteria to be exact, accelerated the mechanical weathering of our planet which led to it namesake.
Wadding Pool Photosynthesis> Atmosphere oxygenation> IceBall Earth > Loess > Terrestrial Life > Lush Jungles
6:40 First announced by the Danish/Greenlandic professor in geology Minik Rosing.
Eventually search for biogeology.
Without volcanoes Earth would still be a giant ice ball.
Who was here before SciShow changed the title?
I don't understand why the ocean floor would lock water under it and why that same ocean floor would subduct under basalt. Seems like the basalt would subduct under the ocean floor.
Volcano are needed, because volcano ashes is the reason why i see many forest near volcano
One of the best video.
(rising levels of sea water gives tidal forces more grip - more geothermal friction/geothermal activity)
So rust is. A sign of life or plate tectonics activity .
SO what if we find a planet made of rust . .
Season I think not because of rotation, but revolution earth round the sun. Because the time earth rounds the sun is a year. I think rotation from the axis effect weather daily.
Ok, if photosynthesis = plate tectonics = granitic rock, is there any way to tune our analysis of exoplanets to look for planets with granite? Seems like since photosynthesis also = oxygen = possibly of life as we know it.
So If basalt is pushed under granite and melted . . Does that mean most of the fossils would have been melted down? . . Making it that much hard to have a consistent record
Yes. Also the ocean plates are recycled every 200 m years if I recall correctly.
Perfectly wonderful. Cant wait to get back to AMNH Hall of Planet Earth. All the cycles, plate tectonics and our stromatolites pumping out oxygen. Thank you!
Next: without asteriod impacts, earth might as well be dead
Imagine what human politics would be like if we all lived on a supercontinent like pangea. XD. I couldnt even imagine.
Just civil war. Forever.
Unfortunately
And then you have to wonder about Gondwana.
Actually, they would never develop ICMBs
Oooh, fun!
The more I learn about the amazing energy and mass cycles of our planet, the less far out the Gaia hypothesis (the Earth as a whole is a self regulating 'organism') sounds. In spite of major upsets such as 'snow ball Earth' and 'hot house Earth' over Eon timescales, the planet seems to eventually recover to a more mild climate conducive to an incredible variety of life. Amazing!
Do an episode on The Expanding Earth Theory (teet).
Nickelodeon once had this awful series called "thundermans" and there's a special that forms it's story entirely off the subversion of this logic.
So lava and water makes granite? I guess Minecraft needs another update.
Only in some circumstance.
The Caves and Cliffs Update has now been delayed, so you can suggest it, though we already have a crafting recipe for it (1 diorite + 1 quartz).
May we have a video about how you guys make your videos. Pls
that's assuming that other alien species couldn't have evolved to use different elements to sustain themselves
Quanta Magazine just did a video on plate tectonics and life. Wonder what happened to make it the hot topic today.
How life shapes tectonic plates?
In short:
Basalt and granite got different density which influence plate movement.
Life increase how much stuff there is in the ocean (like creating oxygen that help wearing stuff in the surface) the which help creating granite instead of basalt
from the magma.
Long version start 7:50 more or less to 8:50
Imagine if we change oumuamua direction to hit mars or another planet... To see what happens
Without Earth, volcanoes might be dead.
More geology❤️
I'm glad I'm an engineer and not a scientist. I can listen to any music I want. You must get bored with just the one CD to listen to? What did y'all do before it came out? Only listen to spoken word?
Wow.
💜
Nice theory’s 👍🏽
This was interesting thank you!
and the old saying.. correlation does not mean causation..
I wonder how this fits with Ganymede and the tectonic processes it has undergone.
We LITERALLY just finished our Plate Tectonics unit! :|
This could be a game changer, if true. It almost suggests life would beget more habitat for itself to explore. This is a neato hypothesis, and I can't wait for them to try to figure out how to develop a working (non-computer) model.
So the earthquakes could be Earth responding to us pushing hundreds of species to extinction??
No
You got a Thumbs Up for that granite joke at 7:24
Aw, who am I kidding? You would've gotten the Thumbs Up without it :)
The entire earth is a living organism, we are all merely parts of that.
I am reading the book Emarald Planet now. This video is very much related to that
What happened to ChinCoins?
were just two lost coles swimming in the mantle, year after year,
09:05 Well, you wouldn't think that smart monkey could. Or, that bacteria could cause biggest extinction ever. Maybe comparing planet life to geology is a different scale, but it's certainly planet scale stuff.
Mars looks like it had tectonic plates
I was thinking the same thing. The existence of Olympus Mons proves that it was at least volcanically active.
Prove we shouldn’t throw plastic into volcanoes.
Are we gonna just gloss over the image of weathered vs unweathered rock right next to eachother? How can those rocks be so differently weathered?! How is that possible?! Am I crazy?!
They easily could have chiseled away the weathered surface of the rock on the left
So, more co2 is good because it dissolve elements that makes co2 go... down? Am I missing something?
The more carbon sequestered in carbon sinks and oceanic basins by biologic and other processes. The higher the amount trapped in the crust to aid in dissolving those elements. And not free in the atmosphere. There are great studies that indicate that carbonates and hydrous play a vital role in deep carbon sequester. As well as in plate boundary volcanism. Since both aid in lowering the temperatures needed to form melt bodies.
@@zed1stwizard thanks, I got a bit confused
@@CarlosBunn
You are most welcome. Our planet has some fascinating and complex physics and geochemistry. Unless you spend decades studying this stuff it is easy to be overwhelmed. Heck, even then it can happen when something new is discovered. All of it helps to make this a place we have evolved to live in. And something we should protect for future generations.
Thank you for your curiosity and desire to learn. I'm always humbled to know others share these traits and will someday learn much more than I have.
aint earth just the greatest? it sure is.
Why is the video name different when I open it than on my subscriptions tab
Great
Well this was overly simplified. At least that’s what it felt like.
Did you expect more in eleven minutes? I think that's a bit ambitious.
Brb praying to Hephaestus
Of course, there are also some people who insist the earth moved for them during certain activities, and that often creates new life......... :P