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- เผยแพร่เมื่อ 29 พ.ค. 2024
- As Antarctic ice melts, the ancient substances within are slowly being released. What will happen to our planet once it's all gone? Visit brilliant.org/astrum to sample their courses in a 30-day free trial. You’ll also get 20% off an annual premium subscription.
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References:
Naughten, K.A., Holland, P.R. & De Rydt, J. Unavoidable future increase in West Antarctic ice-shelf melting over the twenty-first century. Nat. Clim. Chang. 13, 1222-1228 (2023). doi.org/10.1038/s41558-023-01...
Stips, A., Macias, D., Coughlan, C. et al. On the causal structure between CO2 and global temperature. Sci Rep 6, 21691 (2016). doi.org/10.1038/srep21691
Baldovin, M., Cecconi, F., Provenzale, A. et al. Extracting causation from millennial-scale climate fluctuations in the last 800 kyr. Sci Rep 12, 15320 (2022). doi.org/10.1038/s41598-022-18...
Hodnebrog, Ø., Myhre, G., Jouan, C. et al. Recent reductions in aerosol emissions have increased Earth’s energy imbalance. Commun Earth Environ 5, 166 (2024). doi.org/10.1038/s43247-024-01...
Hao, D., Bisht, G., Wang, H. et al. A cleaner snow future mitigates Northern Hemisphere snowpack loss from warming. Nat Commun 14, 6074 (2023). doi.org/10.1038/s41467-023-41...
Caesar, L., McCarthy, G.D., Thornalley, D.J.R. et al. Current Atlantic Meridional Overturning Circulation weakest in last millennium. Nat. Geosci. 14, 118-120 (2021). doi.org/10.1038/s41561-021-00...
Jackson, L.C., Biastoch, A., Buckley, M.W. et al. The evolution of the North Atlantic Meridional Overturning Circulation since 1980. Nat Rev Earth Environ 3, 241-254 (2022). doi.org/10.1038/s43017-022-00...
Ditlevsen, P., Ditlevsen, S. Warning of a forthcoming collapse of the Atlantic meridional overturning circulation. Nat Commun 14, 4254 (2023). doi.org/10.1038/s41467-023-39...
René M. van Westen et al. ,Physics-based early warning signal shows that AMOC is on tipping course.Sci. Adv.10,eadk1189(2024).DOI:10.1126/sciadv.adk1189
Giuliana Viglione. Ozone-depleting gases might have driven extreme Arctic warming. Nature News (2020) www.nature.com/articles/d4158...
Credits:
Writer(s): Chris Bartlett
Editor/Animator: Pavel Allsi
Narrator: Alex McColgan
Producer(s): Alex McColgan/ Raquel Taylor
Thumbnail Design: Peter Sheppard
#astrum #astronomy #earth #enviroment #climatechange
I don't get what is going on in all your videos comment sections lately. Everyone is so bitter and angry. I just want to say there's definitely plenty of us out here who love your approach to these videos. You're willing to cover topics that upset all political ideologies and just focus on accuracy as it should be. I'm happy every time i see a new video from you
BECAUSE PEOPLE ARE GETTING PEED OFF WITH THIS SO CALLED CLIMATE CHANGE CAUSED BY HUMANS
Probably deceptive titles
The contentious attitude you find here is going on everywhere. Everyone is so volatile and aggressive, The legacy and social media platforms are pushing with great gusto, it ups their viewership.
@@gayprepperz6862the truth is very unpleasant that some are not willing to accept
Entropy is something, unfortunately that is not well understood by the majority of people otherwise they would understand that the heat being used to convert the ice to water will heat the water rapidly once the ice is gone
great video! I’m used to astrum doing vids abt space, but a video about earth itself is a nice change
It's pandering.
If we compare the rapid melting of the ice from 12'000 years with today, they should know that half of Northern Europe was under a kilometer-thick layer of ice, and North America too. Today, most of the ice is already on the sea, only in Antarctica is it relatively balanced, but the masses of ice that are now over Greenland are no longer comparable to the kilometer-thick layers that existed in the past. The sea level will not rise much as a result. And the previous model predicted a rise of 2.5°C, we "only" achieved 1.5°C. So they were already 1°C too high! Most civilisations had a flowering period in warmer times, there were safe harvests. No reason to spread panic!
especially that example from 2020, a human made virus, yeah great. At least don't use a man made virus as example ASTRUM!
@@interstellarsurferpandering to who? Sounds like he made up his mind due to the evidence
Dude, earth is IN space
What refutes science:
• Better science
What DOESN'T refute science:
• Your feelings
• Your favorite politician
• Your religion
• Your half-baked opinion after watching two TH-cam videos
Rubbish
@mr.honeybee7661 yeah... my religion DOES REFUTE SCIENCE. Lol good 1.
Best comment I've seen. Some real mouth breathers in this comment section for some odd reason. Yikes.
_"Trust the Science"_ ✝️
@@onlyonewhyphy no, you don't blindly trust the science. You strive to come up with a better explanation and prove it so that others get same results as you. Can't do it? then shut up
What a day. A new Astrum, PBS Spacetime and Veritasium video 👏🏻
Nice channels
2 out of 3 are Aussie ❤
Great Channel!👍🏻🇺🇲
Yes those are quality and entertaining channels.
Astrum's too good for TH-cam.
Astrum is exactly what TH-cam needs more of ❤
Lot of people here saying personal opinions like it was scientific evidence 😞 I blame politics. And money
Morons are a dime a dozen, and the internet was made easily and affordably accessible. Instead of learning from that pipe line of information, they went the wrong way down stupidity holes.
I blame dunning kruger effect
@@MichaelHarto you should blame the ever changing story, the highly questionable record gathering, the experts with stock in "eco" companies and far more than anyone has to type out.
I blame willful ignorance.
@@onlyonewhyphy Hardly an ever-changing story. Sure, new measurements come along, and models are adjusted, but they've all be saying broadly the same thing for decades. It would be more suspicious if it didn't ever change and all new data perfectly conformed. Sure, some people might be in line to make a profit from new Green tech companies, but that pales in comparison to the trillions of vested interests in Oil, Gas, Coal and the status quo in general.
@@onlyonewhyphy In your case, blaming yourself might be helpful.
Netherlands war against the sea continues
Submarine colony
My house is at -3m below current sea level 😳
Indeed, and most dutch people dont even care these days. You can tell them all this stuff, they will still vote for rightist parties that deny climate change... its maddening
Netherlands took away what belonged to the sea. It's just matter of time and it will claim back.
The Dutch get too much credit for coming up with the brilliant idea of digging a trench.
And not enough credit for the effort they put into it.
The worst part is Google adding context from the United Nations, like thats something I need to hear to be able to think clearly.
I've been a subscriber to your TH-cam channel for a couple years now. So, I just wanted to say to you that I'm grateful that a bright young person such as yourself takes the time and effort to produce such quality content that is easily understandable for so many to learn from and enjoy as much as I do. So, thank you Alex. And everyone that is part of helping you produce these videos.
Alan Massoli
United States
It's rising because people are pouring their unfinished drinks into it.
Not only that. Every time I go swimming in the sea, I go pee.
No, it's coming from people flushing toilets.
I was just gonna say because the rivers keep flowing, duh!
It's rising because the core has reversed direction.... 😆
All possibly right . . . maybe. Although I did spit into the sewer today.
Thanks!👑 fantastic as always 🌟
Great video as always, I have learned things :) Thanks!
I love your videos and am very impressed. Your slow and excellent narration allows me to get my head around what you are saying. I have a Bsc so am not a thicko but need time to understand a new concept. Well done.
I am from Wales in the UK and think that you must hail from around the valleys in south Wales.
Did I miss the thermal expansion of the oceans? …now I’ll have to go back and properly listen instead of multitasking
11:35
Thank you for your absolutely amazing work.
Can't say that I've ever licked a ski lift pole, but I skill get your point.
These videos are great. Thanks for your time and effort.
One fact I believe you got wrong.. Man does not learn from his mistakes.
😢
If that was true, misanthrope, humanity would have gone extinct hundreds of thousands of years ago.
As it stands, humanity conquered nature.
Yeah mom has to always clean up after them.
edge. If true, we wouldn't be on youtube.
History always repeats itself.
Astounding as always 👏👍👌
Short answer: Atlantic meridional overturning circulation (AMOC)
What a-mock 😅
Only if east coast American sea levels are all you care about. Globally (which I assume is what is implied in the title), the short answer is thermal expansion.
AMOC is very important. I just spent a few days watching TH-cam videos about it. Unfortunately we have absolutely no data as to what would happen if the AMOC did change in some way so there's no way to say it would be catastrophic, but all signs are pointing that direction such as Europe becoming as cold as Canada for example. AMOC is a good subject to explore for sure. Understanding how el niño and el niña are related to sea temperatures is important too. We're finding out more and more how the sun cycle effects our day to day weather so that's another subject of interest worth investigating more here on TH-cam. Lots to learn about for those willing to take the time.
@@JonnoPlays A kindred soul ! Also , the fresh ice melt water is going to contribute to the AMOC to turn over .ICE BOMB !! Going to get fucken chilly.
Another short answer nothing because there is no Antarctica that would be the ice wall
Alex, another great offering by you and your very accomplished colleagues ! This quality of work keeps me coming back to your site when I want a dependable source for such information.
Looking on the bright side we might get a nuclear winter, that should help out the poles 😬
The Poles will likely have a hard time of it, though.
How many poles do we have ? like 3 ?
@@luizmonad777 A whole land full of them.
@@interstellarsurferThey make the best jokes... well, except for those aliens...
I think the Poles are more concerned with what Russia is up to.
@Astrum Question: when we talk about 70m of ocean level rise, does that take into account thermal expansion, or is that purely the amount of water released by the ice caps and glaciers?
I've learned in lectures that the land ice in Greenland are big enough to attract ocean water in that region; the loss of Greenland ices could mean less water around Greenland and more water elsewhere
we are talking about a few mm at best over the entirety of the planet here.
@@KT-pv3kl What ? Try differences of over 15 feet over the planet...it's called gravity and density !
You forgot to mention the contribution of the connection between the Axial Procession and the Equatorial Bulge/tides influenced by the moon.
And we have yet to see if the migrating Magnetic Poles have a major effect to the ice caps. And if we actually have a long over due Magnetic Flip, what that will contribute to the overall change.
There are multiple overlapping groclimactic factors and forces making our planet habitable.
I knew we were doomed. if I start having a tiny bit of optimism, I make sure I read the diahreah that is the youtube comments section.
We are not doomed, we're just going to be forced to adapt in what seems thousands of years of complacency.
I liked this video because it didn't have a doom tone, which is always present on climate change videos, which I hate.
I don't believe climate change is a catastrophe, its something to be managed, a problem we could fix if we decided it was important and invested effort. It doesn't even need to be a lot, 15% of the GDP over decades might do it.
What's dooming us is our inaction.
@@luizmonad77715% of countries GDP isn't a lot?😂
You can tell us how doomed we all are when you retire from work and get your pension, because unlike the crisis alarmist nonsense, that is going to happen!
@rr-zb3rh not if you live in africa or the middle east or south America 😂
@@rr-zb3rhUS politicians launder that amount in 6 months easy
Great visuals in this presentation and nuannced overview
Alex, you have a wonderful voice that adds another layer to your presentations. I think all of your videos are outstanding, intelligent and chalked full of information. If people choose to live under a rock and pretend our world isn't changing dramatically, so be it.
Love your work, please continue, and please ignore the detractors. You make a difference.
6:58 What sort of man takes his phone into a sauna?
Interesting video.
Is the picture at 6.45 correct? Havent done thermodynamics in many years.. but the units seem mixed up? 4.18kJ to heat 1m3 water 1C sounds.. low?
4.2 kJ/kg is usally used as baseline. i guess somebody at astrum doesn't understand quadratic equations.
Excellent episode, thanks!
Fascinating!
Just a little typo correction at 6:46 - water heat capacity is not 4.18 kJ/m3/C but 4.18 kJ/l/C or 4.18 MJ/m3/C Disregarding this little detail, this is a fantastic video, thank you.
I really enjoy Astrum.
I’m of the mind that if it weren’t for the Moon the Earth would not have such a balance in the ocean. Of course with the exception of when our orbit takes the higher plane and everything gets icy.
I thought sea level rise was caused by the tears of haters.
Tears of global warming haters, right? :)
😂 I thought it was from carbon taxes flowing out into the deep blue
We have enough haters in the comment section on this video to do it all ourselves! Haha
It’s tears of laughter from the boomers. They caused this and got all the benefits and are laughing at us left to deal with it.
Thanks for the video brother Alex
Excellent!
what are you referring to in 2020 the Black Swan I don't recognize the reference can you please explain that further? Thanks
Haven't watched the entire video yet, but could they mean "black swan theory"? Basically an event that is extremely rare (so it is not taken into account when making preparations, creating policies, etc.) but has colossal consequences once it eventually occurs
Perhaps he's referring to the start of the pandemic in 2020. He should be more specific though.
Some of the issues in sea level rising. Is the sand that is used for construction. If you dig into this subject you’ll understand why we’re running out of building sand. And you’ll see how it affects the beach’s. It’s an open market with little to no oversight.
Same with drainage gravel and ballast mix, the ton bags turn up smelling of brine...... wonder where they're getting all of that..
I have never heard this aspect been mentioned before
Pulling sand further inland would have the opposite effect. Much of that sand is pulled from the edges of the shores and just beyond it, for that exact reason. It doesn't matter how much you look into something, if you're looking in the wrong places.
beach sand is not suitable for construction.
@@michaelotoole1807 you are wrong. It’s beach sand that’s is the only sand useable in construction. Its shape is why that is. It’s also why you can build sand castles. Go look into it. Sand mafia is a good video.
The map at 4:09 is wrong. It shows a 6 meter sealevel rise, not 70 meters!
The map shows wildly inconsistent sea level rise, it is around 6m in Southern Vietnam, in Florida it's about 25m and the Alaskan panhandle is around 700m. I tried to do Cuba but it didn't line up closely no matter what height I used. Just look at it, in what world would the Norwegian west coast be more affected than the Swedish and Finnish coast?
@@roevhaal578 The map is on the wikipedia page of "Sea level rise"
@@user-jp7df6th4l Well it's still an incorrect map. Wikipedia can't change geography.
..and what do YOU base that comment on?..?? IF you want to call someone wrong. How about some facts, proof. !
@@stanm4601 go to google maps look at the coastline of the Wikipedia map and check the altitude of the new coastline in google maps you will see vastly different values when the sea level should always have a consistent value and not vary by more than a few meters as water finds its level and cant be at 6m higher in one spot and 70m higher in another.
''How dare you'' . . . Doom Goblin 2024.
Alex, I quite enjoyed this very interesting and informative segment. Your videos are par excellence bar none! Your content, narration, and production are better than some huge budget tv productions imo. 👊🇨🇦
I just came of the comments. I'll watch later but the civil war is far more interesting right now.
please explain?
@@johnrichardson8606 I'm going to need you to use your words.
TRUMP 2024 👊
@@TheSolidSnakeOil 😂 you couldn't have been clearer
It's hard to care much about oceans rising just now...
I really had to go. I mean I REALLY had to go....
First off, Alex, please don't ever consider not presenting and narrating yourself - you are at the top.
Next, congratulations on another episode with amazing animated and still graphics and images. While still a lecturer at a university, I have presented some of the things you covered today in ecology lectures, but this would have blown the student away.
Finally, I cannot understand the amount of negativity in many comment. Presumably you have spoiled them - they should try watching some channels supposedly covering science topics, and at least one that shall remain nameless, does not allow comments despite totally click-bait titles and low level research narrated by an AI that is still at Fourth Grade level.
@astrumspace Seems the units are screwed up a little on the heat capacity screen.. 4.18MJ instead 4.18kJ would make more sense
Oh no a typo - Antarctic*
AntARTic means… against art?
@@paulendry6398That would be Antiartic.. LoL
A paper from the University of Toronto several years ago showed that the Antarctic ice shelves have a gravitational pull. That means when they disappear the water currently being pulled to the southern hemisphere will move north. Sea levels will recede in the southern hemisphere and rise in the northern. I've been wondering what effect all this shifting water will have on tectonic plates. Or is the water like the arms of a figure skater, she pulls them in close to spin faster and spreads them out to spin slower? Will the water concentrate at the equator slowing the earth's rotation?
the arctic ice shelves have the same gravitational pull so why do you think it will move north?
@Pax.Alotin I think the point he was making is that liquid water would start mostly evenly distributing itself and its gravitational pull across all the world's ocean, whereas solid ice can pile up in huge mountains over antarctica, locally increasing gravity in that area relative to the rest of the planet.
@@KT-pv3kl There is far less arctic ice than antarctic ice and that gap is widening since the arctic ice is melting faster than the antarctic ice. Ice is more resilient over land than over water, and the arctic has a lot less land than the antarctic.
Ice melting doesn't make the gravity of the water molecules go away of course, but mountains exert a locally elevated amount of gravity because the mass is piled up in one place. The same is presumably true for massive sheets of ice relative to the lower and flatter ocean.
@weissfox5857 your explanation is exactly right.
As a physicist, that's just stupid. I'd ask why such a paper never crossed my desk considering I'm an expert in gravitation, but then I suppose not every dumb idea gets published in a reputable publication.
I sincerely appreciate this and your previous video. You did an excellent job of laying out all the refutations of climate-change deniers and then clearly presented the dire situation we now face. However, it's the up-beat, we can fix this ending that troubles me. Not because of anything you said, but because I don't believe humans are capable of hearing anything they do not want to hear.
Exactly!
Not just black swan coastal flooding events, but also the increasing intrusion of seawater into formerly fresh water coastal aquifers. So even if your Florida property is (for now) above flood levels, it doesn't mean you'll be able to drink the water.
Thats what wells are for
And filtration devices, they got plenty of sand
@@ClyDIley Ummmmm, not sure we're one the same page with this. Putting a well into salt water only brings up....salt water.
@@ClyDIley Sand doesn't filter out salt.
@@ClyDIley ... You know, wilful ignorance won't change reality. Plug your ears al you want, your won't magivally stop being under water.
I've noticed the total lack of wildlife in the last 30+ years, we used to hear birds every morning, woods were filled with birdsong, if you went for a walk in the evening you'd see hundreds of hares and rabbits, now it's quite everywhere, the numbers are pretty low now and seeing any of the above is rare.
Where? What are you talking about?
This year there were more birds recorded during migration in the Great Lakes then ever before :)
Hundreds of hares and rabbits? The hare and rabbit farm must have closed some time in the last 30+ years.
Not enough CO2. Levels are dangerously low on Earth. We need more CO2 plant food to make more plant growth to enrich soils, to feed more animals. CO2 is NOT pollution and not a cause of imagined global warming.
@@Squintz45 You've obviously never lived in the countryside, never gone on an evening walk in it and maybe too young to ever see it, which judging by your childish comment is probably about 15.
@11:46 - what was the delta T that caused the thermal expansion resulting in sea lever rise of 2 cm between 2011-2018? And if global warming had been occurring for a long time, then how come the thermal expansion only started around 2011?
Very interesting video! 😲 But does anyone else think that there are many factors other than melting ice that contribute to sea level rise?
Sorry guys, its my fault.
I left the tap on.
great episode!
he changed the title and got me confused for a full minute
arctic circle is moving to north all time... so is it means that more and more sun energy comes to nothern area by year...
Land is sinking in some areas, rising in others. Shift happens
🤣🤣🤣🤣🤣🤣
Rising here in Scandinavia, but little use for that if it gets too cold...
The rising sea levels discussed here is due to human activity.
@@user-rl6wr2ny7f Yeah... sentences... hard for you... we know...
Weird... If you look at an interglacial chart we haven't crested the top yet of the current warming cycle. We have a few degrees higher to go and a couple hundred years to get there before we start down the other side towards a new ice age. For those of you in The peanut gallery. And ice age is a bad thing. That's when extinction events happen. There ain't no deserts around the equator and generally the world likes heat
"The world likes heat" - well said. We have temperatures going above fifty degrees in the capital, so the problem is that most people aren't equipped with acs. Cemented infrastructures and pitch roads are probably not deserts but the heat generated - wuff!
"Other side of new ice age" - Nice, I like how you made a quick leap there. This guy in the video found it hard to predict what would happen in 2100 and you were able to determine nevertheless about the next ice age.
I like your style of looking at things, you give me hope in humanity's sensibility.
Ice ages have been cyclical for millenia. Are you suggesting we intervene in the natural cycle to prevent ice ages? Something like... anthropogenic global warming?
@@jsonjsoff "Cyclical for millenia" - Proof beyond reasonable doubt based on observable trends is one way of looking at large time scales, but the interpolation is a long shot. Didn't say it wouldn't happen, but there is a possibility where the atmosphere heats up too much for ice to form. Or say the atmospheric layer runs haywire and the Earth's water is flung into space. These are some of the catastrophes that you may consider before coming to a conclusion that "what's bound to happen will happen" based on your deduction of "what's bound to happen".
Thanks!
As a sea farer you shoulld know sea levels are unevenly distributed around the planet due to local terrain, distance from the equator, and uneven patterns of ocean expanding. Obviously where you anchor often, the land is rising at the same rate as the ocean.
And the earth is expanding like an inflating Baloon as concecuence.. . 😐
@@rastrisfrustreslosgomez544 As the ice melts from the poles, it changes Earth's mass distribution, making it more spherical. This results in more sea level rise at the equator. So for now there actually are some places that stay roughly the same because the ground is moving up.
@@JB52520 that is just not true. All the water mass in the world is neglible to the overall mass of the earth. Even if all the poles were to melt away earth Will remain largely the same shape since it's such a neglible mass by comparison. We call it planet earth but I think planet iron is way more appropiate
@@JB52520 that is not true. All the water mass on the whole world is neglible when compared to the overall mass of the earth. That means that a change in water distribution is neglible to the overall shape of the earth
@@rastrisfrustreslosgomez544 We don't need to think of the mass of the planet, only the crust, as it is floating itself. Any land that has been covered in thousands of metres of ice, has enough mass on it to be depressed downward, and consequently return upwards when the ice retreats. I believe there is a lot of land still rebounding from the last ice age.
ONE PIECE FANS!
Vegapunk:- "The World is Sinking"😬
True! We must stop the world government from raising the water any higher!
Sea levels are rising because some of us speak to the sea! 😢
1. A shape-shifting alien intent on conquering the earth.
2. Intelligent winged starfish people.
What can you profit off a hot planet?
Probably the women will be carried away *shrug*
It's rather tragic how many 'can't be bothered' if they don't receive affirmation within the first 5 minutes.
Want to adopt a star? Not a real one, just the one at the end of our videos - they’re lonely and could use a Patron’s name next to them 🙂 Sign-up here: bit.ly/4anEb5u
Not the own a star thing from three bodies problem 😂
@@mugennojin3513 y do you love me for
Want to free Palestinians from colonial settler apartheid war crimes? ISISsrael created and supports Hamas. Zionism is antisemitism and terrorism ❤️🍉🇵🇸🍉❤️
Dude your last couple videos are pretty lame and ignore a boatload of science on the matter.
@@themollerzlol yeah you nailed it. Im about to unsub🙃
Water expands when it warms. Areas held down by mile thick ice sheets spring back causing adjacent areas to sink. (It’s happening in UK. That rebound takes thousands of years.
The ice sheet rapidly melted 12000 years ago. An event that could not be caused by human CO2. So what did cause the sudden and very rapid melting of ice?
sauce? sorce? sawce?
To puts things in perspective; it took tens of thousands of years for the Laurentide Ice Sheet to be completely melted because that warming was a hundred times slower than what's happening now. The remains of that ice pack are now on Greenland, but it will take another 1500 years or more to melt; that is very quick in geological time, but the concern now is, the first 5% of that ice melting.
I think as the ice melts the ocean desalinates and freezes and I bet it either makes a new current or boosts one. whilst weakening others. its a feedback loop to do with the freezing point with water bare minimum so idk. also what if we start to bottle up co2 removing it from the air/add salt to the sea.
CO2 removal is equivalent to 300,000 US households a year. It is about 1000th what is required to make a difference. Usually CO2 capture uses an enormous amount of energy. How do we get that?
@@thevoiceharmonic I was thinking we make forever bottles like air tanks that are like silos and fill them maybe they even go deep underground or even launch it into space. (Should maybe use our sun to burn up our trash we have no use for aswell maybe) I was thinking we leave it here in case we do need it also the algae farms starting to pop up that convert it into oxygen are great! For space to do that stuff I think we'd require a moon base. We really needs a factory up there making our ships to go mine the astroid belt or drag one back to mine. If we found one rich in gold and metal and stuff we wouldn't ever have to have people mining for it again we would have it in the plenty.
@@fadedlight8596 i dont want to insult you but your solution sounds like a childish fantasy that doesn't account for cost , necessary technology or the energy needed to actually do what you are suggesting.
i would also like to point out that prior to the industrial revolution CO2 in the atmosphere was at around 250ppm it is currently at 400ppm. below 150ppm plants can no longer produce oxygen with photosynthesis. the ideal ppm for plants is 1000ppm of CO2 and the maximum photosynthesis rate occurs at over 1200ppm CO2. if it wasn't for the industrial revolution and humans releasing massive amounts of CO2 into the atmosphere our planets ecosystem would be facing a massive CO2 shortage in the near future.
@@KT-pv3kl some of it is for the future. Not currently. The silos we could do farmers literally do it. Just throwing ideas out there. I don't want to insult you, but we definitely have the technology and if we all decided to live like children rather than old and sour, we'd get a lot more done because we use our imagination man... NASAs % of your $ isn't even in the green it's still the edge of the dollar bill. Imagine if NASA had military spending. That's why I'm suggesting we go mine asteroids before we run out. We can't sustain our day-to-day life and you ARE picking that up. So... yeah. I'm smarter than I look. I'm 20 years old. Yes, I'm young. but I can still voice my opinions to further humanity hopefully. that's my goal in life. making sure were ok and understand what's going on.
@@fadedlight8596
what exactly are we "running out of" that we would need to spend exorbitant amounts of resources to mine on asteroids?
why would we even WANT to remove CO2 from the atmosphere or the ocean?
what exactly would happen if we DIDNT do any of that?
Sea levels are rising. Reason: Aliens are raising the ocean floor.
In 1990, the IPCC First Assessment Report acknowledged that "Human-made aerosols, from sulphur emitted largely in fossil fuel combustion can modify clouds and this may act to lower temperatures", while "a decrease in emissions of sulphur might be expected to increase global temperatures".Since the 1980s, a decrease in air pollution has led to a partial reversal of the dimming trend, sometimes referred to as global brightening. This global brightening had contributed to the acceleration of global warming, which began in the 1990s. In 2020, COVID-19 lockdowns provided a notable "natural experiment", as there had been a marked decline in sulfate and black carbon emissions caused by the curtailed road traffic and industrial output. That decline did have a detectable warming impact: it was estimated to have increased global temperatures by 0.01-0.02 °C (0.018-0.036 °F) initially and up to 0.03 °C (0.054 °F) by 2023, before disappearing. Regionally, the lockdowns were estimated to increase temperatures by 0.05-0.15 °C (0.090-0.270 °F) in eastern China over January-March, and then by 0.04-0.07 °C (0.072-0.126 °F) over Europe, eastern United States, and South Asia in March-May, with the peak impact of 0.3 °C (0.54 °F) in some regions of the United States and Russia.
Those time lapse graphics are great, cheers.
Something i've never heard anyone discuss or even mention when it comes to sea level changes is under water volcanism. We know it takes place in many places around the globe and is evident through new islands being created, tectonic plate movement and sea bed eruptions... I'd be very interested to see a detailed video about it's effects, if at all...
Vulcanism is operating at historically low, fairly steady levels now. It is putting energy into the system, just as it's putting carbon dioxide into the atmosphere, but at a steady enough rate that we can discount it as part of what was an equilibrium state until the start of the industrial revolution. Inputs were balanced by outflows.
Serious vulcanism is when an area at least as large as a medium sized country is uninhabitable due to repeat lava flows. Think "Deccan Traps" level vulcanism. What we have now is small change compared to that.
SOON???? Sea Level has risen 390' in the last 13,000 years.
Please link to your sources. I know for a fact that Manhattan Island has not seen ANY loss of beachfront since they claim back in the 90's that by 2000 the whole island would be under water.
I'm so glad i live on an inland mountain 🤣
I'm coming for a coffee or three in a few decades :P
Can we come visit? We're hiring some coaches.
Maybe don't give people ideas please... Let them in their crowded cities please. We don't need more trucks, SUV and other calamities on our mountains. Keep us safe, stay silent about mountains please
@@ooberholzer A high rise or skyscraper is kind of like a mountain. All works just fine for the people in Venice :)
6:02 licked a ski lift chair?!? This is oddly specific.
It could just be a Dumb and Dumber reference
I wonder how many fractions of a millimeter can be attributed to the volume of microplastics...
It's all about the sun cycles and the earth's magnetic field. The recent solar storm was smaller than previous storms, yet it produced record breaking auroras reaching further around the earth than ever recorded previously. As the magnetic field is disrupted by repeated solar storms it's ability to resist those storms is degraded. We are one big CME away from a serious outage and I'm afraid world governments are not prepared for this disaster scenario. We should be burying electric lines and other cables underground. Makes you wonder why that hasn't happened despite the fact that power lines get blown down over and over by hurricanes and rebuilt just to blow over again.
The cost of burying is way higher that build lines. That's why they don't do it... Like for almost everything that is a problem, the answer is "financial benefits" which mostly profits to the ones that could make things right if their own financial interest didn't blind them complitely.
You overestimate these magnetic forces, which are far less than changes in solar irradiation and the Milankovitch cycles (both of which are in cooling phases) and the long-term carbon cycle as reflected in changes in the greenhouse composition of the atmosphere. In addition, those magnetic forces are relatively constant, so while they might impact the fluid dynamics of the atmosphere, it would only be in terms of short-term fluctuations working out to zero over the long-term.
Where are you getting that the recent solar storm was smaller than previous storms? As far as I am aware it was the single largest since the Carrington event. Being smaller than the biggest ever isn't unimpressive. Our systems held up perfectly, and while that doesn't necissarily mean anything for even larger storms, this storm was bigger than expected, not smaller. It was impressive what we just handled.
Will the thermal expansion of the Earth be a catalyst for earthquakes?
Maybe we should stop building powerplants next to the coast and so on...
🎯 Key Takeaways for quick navigation:
02:53 *🌍 The stability of Earth's climate for the past 12,000 years, known as the Holocene, has been maintained in part due to the ice's role as an energy buffer against extreme temperature changes.*
03:50 *🔥 Despite Milankovich cycles suggesting an increase in polar ice, current trends show rapid ice melting, primarily driven by greenhouse gas emissions, leading to accelerated sea level rise.*
05:08 *🔄 Increased temperatures from climate change lead to thawing permafrost, releasing stored carbon, which in turn amplifies global warming, creating a feedback loop.*
07:17 *☀️ Factors like soot darkening ice surfaces and decreasing atmospheric particulates affect ice melt by altering energy absorption and the greenhouse effect.*
09:24 *🌊 Melting ice shelves in Antarctica allow faster glacier and ice stream flow into the ocean, contributing directly to sea level rise.*
11:11 *🌡️ Besides melting ice contributing to sea level rise, the thermal expansion of seawater due to increased temperatures has already caused about half of the observed rise since the industrial revolution.*
12:30 *🌊 The potential slowdown or collapse of the Atlantic meridional overturning circulation (AMOC) could drastically alter global weather patterns and coastal sea levels, with significant consequences for ecosystems and human populations.*
17:06 *🌍 While the average predicted sea level rise by 2100 is 0.5m, extreme events like storms and floods will have profound impacts on coastal populations and ecosystems, necessitating adaptation and mitigation efforts.*
18:27 *🛠️ Individuals can contribute to addressing environmental challenges through education and innovation, and platforms like Brilliant offer accessible ways to develop STEM skills to tackle these issues.*
Made with HARPA AI
VEGAPUNK WAS RIGHT THE WORLD IS SINKING
😂😂😂
I have seen nobody do any studies about the sea weight causing see floor sinkage. We are just supposed to believe that ocean basins are juat like a bath tub.
Everything we take as 'fact' is really just best guess repeated by enough flesh monkies.
Humans have just begun to open their flawed eyes.
It's been studied (of course). Over a very long time period the ocean basins are getting deeper.
@@stevebloom5606 Do you have any links to studies that contemplate ocean basin debth.and global worming? I don't find the general panic for the future to be very productive. I live miles from any roadway. I have all solar, cookin, water heating, electricity. I do not buy new clothes and grow most of my own food. I have gotten rid of gas powerd vehicals and have a couple of golf carts that can be solar charrged. i've eliminated entertainment and travel from my life. Dispite all my efferts my fellow humans are still demanding somthing from me. my problem is they refuse to define what that demand is.
You represent every human? No?
Well in oceans with an average depth of thousands of meters a couple of decimeters isn't much of a change in volume.
I wonder if seawater level rise will have any effect on the tectonic plates and cause seismic activity to increase.
Everything's in dynamic equilibrium.
Thank you. You explain this well.
Sea level rise is due to both ice melt and the expansion of water as it warms. The sea level on the East coast has risen only about a foot so far, so it wouldn't be very noticeable. But that will accelerate.
Half the rise is thermal expansion of water, a fraction will also be less weight at the poles deforming this largely spherical planet.
what the hell do you mean by "so far"? based on what timeframe? and by how much will it accelerate?
Fear not, engineers beat scientists all day long. Innovate.
Yes! Lower the sea floor!
Engineering can be expensive.
@@rick49 loll
Engineering is only possible using science
engineering is application of science. Thus your statement is an oxymoron
great video
So it's because the changes in currents, some places will have rising levels and others like northern Europe will have decreasing levels? Then Nerherlands will have more territory without fighting the sea? That's unfair for the sea!
We also have LAND RISE in many parts of the world.
And land fall. Adjustment to the absent glaciers is still going on. It nets out to zero.
I'm wondering if Kodiak Island, Alaska is one of those places. The sea level is falling almost 10 mm per year according to the NOAA Sea Level Trends website.
@@stevebloom5606 why would it net out to zero if a great mass of ice has just recently melted off after the last glacial maximum. shouldn't it be a net rise if the crust is still adjusting to the loss of ice over the last 100k years?
@@KT-pv3kl I meant in the present. Of course the deglaciation raised sea level by a lot, everywhere. For every low spot in the ocean there's a high spot, even if they're all getting higher when averaged together. The point is that our hardheaded friend's personal ocean experience or indeed the actual measurements at Kodiak (or any specific location) don't represent the global picture.
@@stevebloom5606 you said the adjustment to the deglaciation is still ongoing which implies that the land should be rising now that billions of tons of weight was removed from them. Hence my question why is amounts to zero.
One comment... if every single cubic cm of sea ice melted, then the sea level would not alter by so much as a single mm. The sea ice is already part of the ocean. Land-based ice on the other hand is a real danger.
Damn thats dumb. Go half fill a glass with water and add a vive of ice. Use a Sharpie to mark the waterlevel. Then leave for a while and come BACK after the ice has melted away. Use the Sharpie to mark a new water level. Compare and contrast the levels before and after melting and draw conclutions from there
Did you forget about the thermal expansion of matter that was also mentioned here in the video? Yeah, warmer water than 4°C expands the warmer it gets.
@Pax.Alotin sources: *trust me bro*
@@rastrisfrustreslosgomez544 from what i can see ice melting would increase the sea level by 60-70m according to various sources from NASA and the us government.
what many people don't consider however is that this change will happen within 5000+ years if we continue the trend of carbon emissions and the climate models are accurate. that's longer than recorded human history and the average rise per century would be 1,2m
even in the most pessimistic case rising sea levels wont be much of an issue for us humans.
@@KT-pv3kl *average* the keyword you're looking at. While the average around the coast lines across the world would take a 100 years to be of any notice in places like florida the distribution will be much higher than average
I'm wondering would it be possible to build giant heat sinks in the ocean? That way you could cool down the parts that are two warm
a heat sink just transfers heat, it doesn't remove it from the universe, so a heat sink in the ocean would just heat the atmosphere which would just heat the ocean again, so no it's not possible
It would definitely be possible and would cost about 987 billion trillion dollars. Humans could get it done if they worked on nothing else for a couple hundred years. They'd have to cross fingers that they didn't kill all Life in the ocean (or maybe not care about that). Let's Go For It and make a good start this Century !!!!
The water can come up out of the giant sponge we live on that we call the Earth
For all those thinking that ice melting in a cup of water does not raise the level, there are 2 things:
1. Greenland and Antarctica are landmasses. Any ice being added to water can raise the level.
2. As the video mentioned, plate tectonics plays a role here. As the weight a plate bears decreases, the plate will rise, and some other plate will sink. Though this is not enough to trigger earthquakes, it is enough to rise/lower the sea level significantly.
3. Even in the ideal case where all ice would be present only in the water, and plates would not exist, the melting of ice would still release prehistoric organisms and chemicals trapped in it over many years.
So yes, melting of ice is a big concern, as it is currently accelerated by humans. People saying that 'government' is trying to control us are just fear-mongering (though greenwashing is still equally deadly, and ruins the reputation of actual environment conservation efforts).
Pseudo
Let me start with #2 - Plate tectonics take hundreds of thousands of years to notice. #1 Yay-saying. You list the fact that two areas are landmasses, then just claim that adding ice to water raises the the water level. Yet the "ice" is already in the water, it is not magically spawning as if in a video game. Finally #3 those organisms are long dead. The only accurate thing you did post is the chemical would be released, but of course YOU have no idea what those chemicals are, or in what concentration since actual scientists can only predict both of those variable. So please stop pretending you understand these topics because you read a wiki page. The melting of ice has been going on for four decades and has yet to raise the water level AT ALL. Beach front property along the East and West coast of N. America, on average (some areas do fluctuate, but they average out over the entire continent) has not been disappearing or else the communities would be moving inland.
The sea level stays the same. It is only the rising and falling land masses that change.
We don't have to live at the coasts.
Well apparently the coasts will come to us... ;D
We live there because it's advantageous to do so, huge numbers of people suddenly having to move away from the coast towards inferior inland areas would massively hinder quality of life and economic functioning globally.
15:50 “ the lower our ecosystems readiness for it”. Stems from a misunderstanding of evolutionary biology. In fact, the longer back it’s from, the less it’s ready for Our ecosystems, the less chance it could be that black swan microbe as the further back it is the less of its host species would be available for it to mutate in. It’s just not accurate to state that the inverse is true.
too fast of a polar collapse will have a rebound of snowball earth, but dont mind me.
Change is the only constant. We'll adapt.
Here's a toast to the sunny future!
Maybe we'll adapt...we're running out of time.
@@LandscaperGarry It's not possible to run out of time. Billions of people could theoretically die, but does it matter? Sea walls? What an absolute joke. You can't force people to release their property and force investment into areas that are not predicted to be influenced by sea level rise. People will migrate and if they don't, there's not an issue. BUILD WALLS TO PROTECT MY LAND WAHH
@6ghastlyghoul9 qI think running out of time is distinct possibility.
@@6ghastlyghoul9 IMO, what would matter if " billions died is there would be enough people to keep things going, which might be a good thing.