Have you ever thought about how we can design buildings more efficiently?
@namename31302 жыл бұрын
Everything can be done better with a zero emmision electricty grid. Until that sorted ever step thats taken to reduce carbon emmisions will be made using an co2 emmiting grid and so will emit carbon.
@nutzeeer2 жыл бұрын
Yes
@anon60562 жыл бұрын
Yes
@sayyamzahid73122 жыл бұрын
@@nutzeeer belo
@sayyamzahid73122 жыл бұрын
@@anon6056 Chris Kyle died in the
@wagako3772 жыл бұрын
“Concrete is a climate problem that nobody is talking about” As a civil engineer, actually it’s always been talked about. But maybe just in our industry, not outside it.
@kevinw98062 жыл бұрын
well, there is recycled aggregates and low cement concrete and etc to reduce the total carbon emission. but as engineers, what you can do the best is to use the green materials and green design that are approved by standards and policies and it must be within the budget, nothing more you can do.
@wagako3772 жыл бұрын
@@kevinw9806 very true
@notskottkendall2 жыл бұрын
Also have to prove carbon emissions are detrimental to the planet
@troy5102 жыл бұрын
Yeah you guys just have to use what is available to you. Concrete is just the most efficient material to use for the required strength and budget. Most of Civil engineering involves concrete. Imagine trying to make a waste water treatment plant with out it? Or just thinking of something more extreme, A hydroelectric dam lol. Those would be near impossible without concrete.
@Schmuni2 жыл бұрын
I dare say it is being talked about outside of the industry too, for like the past 10 years at least. People in the video saying that nobody is talking about it doesnt make it true. It is like the 10th video ive seen on the subject. Maybe they just want to make the video seem novel.
@valerielechene6052 жыл бұрын
This statement is partly inaccurate: "Another 22% of planned savings come from designing more efficient buildings, and extending their lifetimes. This is not entirely in the hands of the cement industry. It's also about how architects and engineers design our cities. They could retrofit old buildings instead of knocking them down and design new ones to last longer." As an architect and climate organizer, I can testify the decisions making power regarding the efficiency and lifespan of buildings are not in the hands of architects and engineers but rather in the hands of real estate developers and zoning regulators. Architects and engineer like to engage with these types of challenges; however, developer remain focused on their bottom line and refrain from investing in what's right (this is part of why there's a housing shortage). Zoning regulations are complex processes and developers often lobby for their economic interests.
@BearerOfLightSonOfGod2 жыл бұрын
Yeah but to them that's too complicated it's easier to say cement industry bad natural good.
@dunnobored2 жыл бұрын
wouldn't retrofitting cost more time, money and effort rather than starting all over in most cases. It could beneficial in cases where the building is still stable and strong but can be a health hazard and just be difficult to do in others?
@DurzoBlunts2 жыл бұрын
100% right and true
@alexsmith12072 жыл бұрын
Wrong
@alexsmith12072 жыл бұрын
@@DurzoBlunts it's false
@dondoron53772 жыл бұрын
I'm really surprised that you did a video on concrete without a single mention of issues that come with the use of sand
@emma-eventing2 жыл бұрын
agreed --- i kept waiting for that part too. tho, in fairness, i'm pretty sure other DW entities have produced videos dedicated entirely to the sand mining industry...
@DWPlanetA2 жыл бұрын
Hi there, you can view our video on sand here: kzfaq.info/get/bejne/hrOWl6aWu9-9o3U.html - let us know your thoughts in the comment section.
@EhrenRunde_2 жыл бұрын
@@DWPlanetA It's important to talk about the sand, when you talk about concrete. Maybe you could have mentioned the video about the sand problem in this video.
@derekcraig36172 жыл бұрын
@@EhrenRunde_ yeah, not in separate videos like DW did here...
@katamas8322 жыл бұрын
The issue is that It's coarse, and rough, and irritating, and it gets everywhere.
@pinkelephants14212 жыл бұрын
What has been completely overlooked in this video is the fact that CCS or carbon capture & storage as its otherwise known, uses VAST amounts of electricity making the technology to date economically infeasible & in some cases, depending on how that electricity is generated, produces more greenhouse gas emissions than it captures.
@TowerHunter2 жыл бұрын
At least with this technology there is some room for optimization - renewable energy, nuclear power plants (those small nuclear generators we keep hearing about). If we can't get rid of concrete - it's a step in the right direction, is it not? Of course - if the electricity is going to be generated from coal burning, gas etc., then it makes no sense.
@GewelReal2 жыл бұрын
It's the same as people thinking electric cars are better for the environment, until you read what it takes to produce them and what elements go into making the batteries and electronics and how they pollute the environment when they are at the end of their life cycle
@therealspeedwagon14512 жыл бұрын
@@TowerHunter I’m so glad you brought up nuclear power. So many people see it as a bad guy just like how fossil fuels are, that is nothing but co-opted lies by oil company capitalist pigs and by Greenpeace hippies. Nuclear energy, despite it’s accidents is by far the safest form of power out there. It may be our only hope. As for the other guy who brought up electric cars. I think we should just ban cars all together and instead opt for public transport, trains, or even just straight up healthy walking and biking.
@charleswalters528410 ай бұрын
ccs is rich people screwing you again. Agriculture is the only thing big enough to capture enough carbon, and the only thing that doesn't cost anything, but pays(!) e. g. Greg Judy, Gabe Brown, Allen Savory
@SaveMoneySavethePlanet2 жыл бұрын
As a Californian, concrete is also incredibly important to ensure that every earthquake doesn’t completely level our cities. So being able to scale up green concrete and green steel production will ensure that our sustainable infrastructures don’t get wrecked once a year and need rebuilt. Thanks for such an educational video on such an important topic! Edit: The reason I mentioned green steel in my comment is because reinforced concrete is what you need for earthquakes. The concrete provides the compression strength while the rebar provides the tensile strength.
@Kaepsele3372 жыл бұрын
Isn't concrete bad for earthquakes? I would think that something more flexible, such as timber would be better because it doesn't break when it bends.
@aegaeon1172 жыл бұрын
World's running out of sand, a key ingredient for concrete. As a former Californian that was born and raised in the San Francisco Bay area, I say let the cities crumble because it's going to be all underwater soon anyway.
@MelodicTurtleMetal2 жыл бұрын
@@aegaeon117 the world's not running out of sand, it's running out of cheap sand. Countless companies are proving the viability of desert sand, and once it becomes financially viable (not long as scale increases, and sand price increases) desert sand based alternatives will start to dominate.
@a.chavez58082 жыл бұрын
@@aegaeon117 that's a myth california isn't going to sink
@aegaeon1172 жыл бұрын
@@a.chavez5808 oh, I didn't know sea level rise was a myth. Do you have any empirical evidence or does it just not fit with your worldview?
@onlymediumsteak90052 жыл бұрын
Hempcrete also seems very promising!
@sayyamzahid73122 жыл бұрын
Chris Kyle died in the battle rip Massachusetts
@darthmaul2162 жыл бұрын
What about cumcrete
@ObiWanNairobi2262 жыл бұрын
Unfortunately hempcrete is very low strength (around 1/20th of concrete) and would not be useful in the vast majority of what we use concrete for today.
@adibhasbany13112 жыл бұрын
Maybe rammed earth
@thelaurens19962 жыл бұрын
Yes please, way more carbon capture and overall carbon negative footprint instead of these lobbied ideas of concrete. Don't get me wrong, there should be a place for both, but hempcrete is really easy to build with and super sustainable.
@syncout95862 жыл бұрын
0:30 Please for the love of god, stop showing nuclear power plants emitting smoke when talking about excessive carbon emissions. You're cementing the idea that nuclear power plants produce a lot of CO2 when its not. That smoke isn't CO2, it's water vapour. If you really care about the climate and want to bring carbon emissions down, you'd support nuclear power because it emits very little carbon dioxide and far more energy compared to coal and oil power plants. It's completely dishonest.
@SilvaDreams2 жыл бұрын
Lol especially since that smoke isn't even smoke.. It's steam coming from the cooling towers. But have to remember nuclear energy is the big bad scary to the green energy groups because it is actually effective unlike all their products.
@MegaSnail12 жыл бұрын
A UCLA team showed that the carbon dioxide given off during calcination can be captured and recombined with calcium hydroxide to recreate limestone - creating a cycle in which no carbon dioxide is released into the air. In addition, about 50 percent less heat is needed throughout the production cycle, since no additional heat is required to ensure the formation of tricalcium silicate. Sant said the method is analogous to how limestone cementation occurs in nature, where limestone forms the tough exoskeletons of coral, mollusks and seashells, and when microbes form limestone that cements grains of sand together. Thank you and be well.
@markymark14422 жыл бұрын
do you mind posting the title, authors, and or link for this study? I am interested
@Vulcano79652 жыл бұрын
but where do you get the same amount of Ca(OH) if not by burning limestone in the first place? What's the UCLA study called?
@emilyarchibald19002 жыл бұрын
Look into the "sand mafia" videos as well if you want to know the horrible truth about how sand to make concrete is sometimes sourced.
@058thegodfatherlwd2 жыл бұрын
Ooh man, you ruined that frying pan with concrete compcretely.
@laniakea_02 жыл бұрын
why on earth would you interview a lobbyist for this? people that regularly lie on behalf of the industry can hardly be considered a trustworthy source.
@jowjow__22952 жыл бұрын
I would just like to say that roman concrete wasn't actually forgotten at all. Its recipe was in 'De Architectura', a roman treatise on architecture. It's just that people didn't make buildings big or complex that they would need concrete to build them.
@DrBernon2 жыл бұрын
I think the solution is to allow for other materials and techniques to be used on smaller buildings. Sometimes old techniques are not allowed because they are not inside building codes. For example... Rammed earth is incredibly strong, and could be used for single family homes or really any building of two or three stories. Yet, I doubt you were allowed to do a building that way. So I think building codes all over the world mus change to allow for these kinds of old or unconventional building techniques. It is just a matter of studying them, and make some guidelines, just like we have now with concrete.
@philiproler55722 жыл бұрын
yeah sometimes older is better. fe old furniture was much more durable than what we have these days. and thats not just because we use pressboard etc but also becasue of the way we make them, put together the pieces. we should keep asking why we do certain things the way we do them. if sth works better then we should do that. but having these standartized rules what we are allowed and not allowed to do make it hard for that to happen.
@dav3562 жыл бұрын
@@philiproler5572 It's called capitalism. Make something mediocre enough that people will buy it and do it as cheap as possible, and you're ahead in the game. Unfortunately there's no good solution.
@philiproler55722 жыл бұрын
@@dav356 ofc... what i said doesnt deny that. you can do the best with sth mediocre still. and also dont forget thats it not only about using the least needed for the highest gain. new things or things that work the best for sth will also be bought since for certain things ppl want the best and then are willing to pay more for it. if you want to get really rich you make sth for the masses with the least ressources but if you want to get rich you make sth really good.
@TowerHunter2 жыл бұрын
@@philiproler5572 I don't know in what financial position you are in, but I would not be able to afford furniture for my home if it were to be "the old furniture" - it's simply too expensive! On top of that - how would you approach moving with such furniture? They get pretty heavy, so moving them is almost impossible. I like my IKEA furniture, and they last for long enough for me. As for the point above - yeah, maybe there are some alternative ways of building a home, but where am I going to find a team that will build it for me? I am sure as heck not going to have time to learn it myself. In a bigger city/suburbs MAYBE, but a small village? No way.
@philiproler55722 жыл бұрын
@@TowerHunter you shouldnt just think about your point of view only... just because you and me couldnt afford it or dont own a house where we could get such furniture for doesnt mean that there arent enough ppl who can afford it and/or own a house. there are plenty ppl out there. and since youre offering a luxury item it doesnt matter that there are way less ppl who would choose "old style" furniture over ikea furniture since instead of low price high quantity youre selling high price low quantity. still a way to get rich. and as for who will build it thats what i meant basically. we should adapt more to certain situations. there should be ppl offering such a thing. if sth is better it should be done. you dont own a house and you wont be able to move with "oldstyle" furniture and it would be to expensive for you? best option is ikea furniture. you own a house and dont have to move and you got the money? best option is oldstyle furniture. youre happy with a house made from mud and dont need electricity etc? get yourself a house made out of mud xD youre living somewhere dangerous and need protection? get yourself a fortress. hope you got what i wanted to tell you with that :)
@Joe90V2 жыл бұрын
Using Hempcrete for domestic buildings would also decrease emissions. Similar to concrete but not structural it does have a lot of uses. Be interesting if you could put together a video about that, please.
@sarcasmo572 жыл бұрын
Yes, we will make that for you! Stay tuned.
@stoneomountain23902 жыл бұрын
@@LolwutLol2000 Lots of real estate considered too toxic to plant food plants, mine heaps, splash piles, rubbish tips.
@ryanjamesloyd67332 жыл бұрын
@@LolwutLol2000 a bit hard to find, but you don't have to cut trees, you can use metal stud framing, or there are companies that make structural basically big lego brick construction, so it would be like a concrete block house, but made out of hemp. it's cool stuff.
@shmo16262 жыл бұрын
If stopping or slowing the global warming is the goal then yes reducing CO2 is important but reducing METHANE is both more urgent and more feasible and therefore even more important. Let's get our priorities straight and be more goal oriented. There is a somewhat recent KZfaq video on TED about this. The name of the scientist speaker is Ilissa Ocko. I would encourage you to watch it (I intended to provide the link at first but that kept erasing my entire comment).
@pcno28322 жыл бұрын
The most cost effective way to reduce methane emissions will be to eliminate leaks in natural gas distribution systems and leakage during the extraction of methane from the ground. Capturing methane from landfills (which is already done in many places), food production processes, and from natural decay of foliage would also be useful, but the more spread out the leakage, the harder the capture process would be.
@homo-sapiens-dubium2 жыл бұрын
CO2 split: 8% cement 8% steel, 3% aviation We need to tackle all of them no doubt, but we must not forget the worse by focusing only the smaller evil. No, the consumer alone isnt responsible for all emissions!
@LuckilyASMR2 жыл бұрын
Great topic to be aware of. I've always seen concrete as something that needs to change or be changed and I'm glad there's some talk about it and the plastic alternatives also being produced.
@felixguerrero60622 жыл бұрын
Roman concrete was superior, as it got stronger with exposure to water, unlike Portland. Second, modern concrete starts to degradate very rapidly and cannot last longer than 60-70 years. It's best to use traditional building materials, wood, earth, stone etc...it lasts longer and is far more beautiful.
@ulrichschnell23312 жыл бұрын
A man in Africa has already solved this problem by using clay. His process cost 75% less than present concrete and does not release half the carbon of present concrete.
@alessandrogini5283 Жыл бұрын
Also plastic could be used
@zamenislongissimus36872 жыл бұрын
No.... to jak to się mówi.... 3 lata i cena cementu podzieli cenę gazu. Dziękujemy wam ekolodzy, jesteście cudowni. Cały świat was kocha.
@Sandvich182 жыл бұрын
lepszy kontrolowany wzrost cen niż nagły kryzys - myślisz, że celem ekologii jest uprzykrzanie życia?
@davidblair98779 ай бұрын
Here’s the thing about environmental damage: we pay for it one way or the other. Want to keep pumping CO2 and methane into the atmosphere for “free”? Well, okay, but don’t come crying when your house burns down in a forest fire or gets flooded in a freak storm or your local reservoir runs dry. That’s your “free” sending you a bill.
@crimson40662 жыл бұрын
I wish DW talked more about sustainable building materials like cob- there's quite a few that stand the test of time and mother nature
@Eikenhorst2 жыл бұрын
If the Pantheon was build of cob, it never was in the first place, but it certainly wouldn't be. Nothing against cob, but replacing concrete with cob is not really a thing.
@dathuynh97722 жыл бұрын
Great vid. Thanks for raising awareness on this topic.
@dwylhq8742 жыл бұрын
Why no mention of Hempecrete? 🤷🏼♂️
@juuso85322 жыл бұрын
Big miss here not mentioning the insane amount of raw material (sand) needed to make concrete and the ecological impact that has. It’s not just about lowering the carbon emissions on the production of concrete.
@TheCed882 жыл бұрын
It's been covered in another video.
@stevk51812 жыл бұрын
Please edit your video. C3S and C2S at 1:54 are not the correct representation of calcium silicates, but rather incorrect representations of carbon disulfide.
@luifi2 жыл бұрын
Amazing content as always 👏🏼👌🏽
@bartroberts15142 жыл бұрын
Thank you for this dipping of the toes into the issue, for people who know nothing about it. Perhaps an advanced step, looking at alkali-activated pozzolans and geopolymers, replacing the CO2-intensive limestone component in cements with kaolin, which requires 10% or less of the energy to process to metakaolin as to reduce limestone to clinker, and is at least as plentiful and cheap? And a look into why these stronger, cheaper, more environmentally resistant cements are so aggressively resisted by the OPC industry?
@JamieMurphy252 жыл бұрын
This brings back what a talk radio presenter in the UK said last year when he interviewed a green activist (this was at the time when protesters were blocking motorways, plus I'm not naming names), and the presenter claimed that you can grow concrete, safe to say he was ridiculed.
@BDrumev0012 жыл бұрын
Now those are some concrete facts!
@chuwensen62092 жыл бұрын
blaming concrete while enjoying the comfort of buildings, roads, and tunnels, is like criticizing power industry while enjoying air conditioning. while we wait for new technologies, we must use less.
@milly-sy4bc2 жыл бұрын
no ones enjoying poor climate and pollution, and its usually the fault of planners and higher ups for what we get stuck with. Spreading awareness and active participation is our last chance I think
@DunnickFayuro2 жыл бұрын
You can heat up kilns using direct sun energy. I saw this guy who is reaching temperatures high enough to make steel out of concentrated solar energy. That should also do for cement.
@hongkaipun12042 жыл бұрын
so you're suggesting to produce cement using fresnel lens?
@hongkaipun12042 жыл бұрын
@Tyson Bryant nah, I don't think so
@DunnickFayuro2 жыл бұрын
@Tyson Bryant As much as you want :) Just add mirrors. The setup in the video is only a demo. It is actually designed with scalability in mind. The test plant has 400 mirrors; the real thing will have 40000. All deployed and installed by robots. Designed from the ground up to be dirt cheap and easy to set up. Heck, they store the eat into rocks. You can't get cheaper than that!
@juliocesarsalazargarcia68722 жыл бұрын
Could you put a link for us to see that tech, please?
@SilvaDreams2 жыл бұрын
@@DunnickFayuro Yes let's deforest large areas and cook it dead from the refracted light and heat it produces... Sounds like such a great thing for the environment. Which Fyi is one reason why cities are having so many issues with heat, all the reflective windows they put in so it literally cooks the city raising their temperatures upwards of 30 degrees in the summer.
@andydutton4552 жыл бұрын
Concrete is everywhere. Changing it would take a lot.
@savrtuthd2 жыл бұрын
Pleasantly surprised to see my hometown, Metro Manila in 0:20
@TheTrojanhorse20102 жыл бұрын
Interesting video. Good job!
@kasimirb51552 жыл бұрын
Everything depends on green energy. If we have enough of that - which we theoretically have -, we can do anything: capture carbon, recycle carbon, split carbon. The priorities for our governments and the industry should be clear then!
@Bleckyyyy2 жыл бұрын
go look deeper what green energy really means. solar power plants needing natural gas to start every day, wind turbines lasting 10-20 years, then the material is nonrecyclable and dont even get me started on ''green fosil fuel''... they are literally burning trees to make ''green fuel''
@SoundsSilver2 жыл бұрын
Economics disagrees
@thetoyodacar22642 жыл бұрын
@@Bleckyyyy best we have right now is hydro and atomic, but no atomic scary waaa
@Bloated_Tony_Danza2 жыл бұрын
Uranium is green energy, like literally
@SilvaDreams2 жыл бұрын
@@Bloated_Tony_Danza Uranium isn't even green, it's silver in it's metallic form... silvery gray in it's oxide form and it's fluoresces a yellow when used in glass.
@sriharshacv77602 жыл бұрын
The female professor has such a smiley / happy face :) Why can't everyone be like this!
@stickyreturn2 жыл бұрын
All this talk of carbon neutural by 2050 is wrong. It needs to happen much much much faster. Indeed it may already be too late.
@robbenvanpersie15622 жыл бұрын
@Flame elites Don t care
@benjif24242 жыл бұрын
Just halfway through, but did this video actually start with the pantheon and is not going to address the problems of reinforced concrete (putting rebar in)??
@-AnyWho2 жыл бұрын
im not a cement expert but i wonder what would happen if you mixed ground plastics that are harder to use for one reason or another and mixed it into the concrete slurry? i mean, would you end up with a better concrete or would you just end up with integrity issues then? just a random thought ... it would be one way to get rid of excess plastics.
@practicalpen19902 жыл бұрын
Plastic bricks, from recycling trash, have already been invented. It just hasn't caught on yet.
@poulthomas4692 жыл бұрын
Something that isn't addressed enough is the fact that we will never get to Zero emissions. It's just not possible. What we will have to do is reduce as much as we can and then actively pull carbon out of the atmosphere to make up the difference.
@charliebaker14272 жыл бұрын
The beauty of carbon sink principles
@SG0032 жыл бұрын
I watched a video on CNBC where they were showing a company that make environment friendly cement
@GairikBanerjee2 жыл бұрын
I'd have liked you to include discussions of Hempcrete, Mushroom/Mycellium, Recycled Plastic composites, other waste products, etc. that can be used either in place of, or in addition to cement / concrete to build.
@jamesstepp19252 жыл бұрын
In the US, the biggest problem is to build long term with concrete so that structures like bridges and roads etc. do not have to be rebuilt every 40-60 years. It mostly happens because we use cheap steel rebar which many times is already rusting when the concrete is poured. The rusting metals off gasses, which cracks the concrete, which exposes more metal to moisture, which rusts more metal, until eventually your bridge looks like it has leprosy and falls apart. Roman concrete did not use ferrous metals, which is one major reason why their concrete lasted so much longer. The best way, IMO, to use less concrete is to use it less often and wisely (also saves tax dollars as well) and do it right the first time.
@Bloated_Tony_Danza2 жыл бұрын
High temperature chemistry, done at industrial scale, is probably the greatest hurdle that decarbonization faces. Aluminum foundries, cement plants, steel mills, you name it. How are you going to cheaply provide 2000 degree atmospheres 24/7 without burning fossil fuels?
@SilvaDreams2 жыл бұрын
You can't. No green power source can even provide the electricity effectively for the foundries (And yes they pretty much all run off electricity for their forges now days)
@Bloated_Tony_Danza2 жыл бұрын
@letsTrySelfImprovement exactly!
@DerekFolan2 жыл бұрын
Lets just exclude concrete from the Co2 targets and classify it as acceptable levels of carbon emissions. The emissions are quite low given that its the most widely used material in the world apart from water, also there is another crisis that you don't bother to mention which is the global housing crisis. Carbon taxes on concrete makes building even more expensive. This is the danger of flat carbon targets. Targets should be more intelligent, Trees need carbon to breath so why not offset by planting some more trees. I support wood and concrete combined to build bigger cheaper buildings. Make new building standards that require tree spaces near to buildings. Buildings are too small so start building vertical taller buildings so we can fit in bigger Gardens with trees. People also need a place to dry their clothing so some outdoor space would be a change.
@Jordbamsen2 жыл бұрын
You didn't count the emissions from the different materials to make the concrete. The worst thing about concrete is that it is not possible to use ordinary sand, only sand that destroys entire habitats.
@XDarkxSteel2 жыл бұрын
Maybe I'm misinterpreting the message of the video but it's a little concerning that it went from pointing out that we need to effectively end carbon-linked production by 2050 to treating it as a given that the cement industry as it exists needs to stick around, and practically uncritically repeating the words of the cement industry mouthpieces that are just handing out empty promises that they'll run things more "green" and develop CCS to make the industry "carbon neutral". Maybe I wasn't paying attention but there seemed to be not much attention given to *how* concrete-based development could be decarbonized, and a lot of hope seems to be placed on the at the moment shaky premise that CCS technology will live up to promises made about it by the very same industries that have for decades (and still to this day) worked to undermine climate action because it poses a risk to their profits. I've seen a lot of great videos on this channel, but I feel as though some of them play into the worrying trend of technocapitalist "solutions" to climate change and an acceptance of greenwashing.
@roberthiggins64012 жыл бұрын
I thought it was very scant on detail too. Glad to read that it wasn't only me with those thoughts.
@afromaximus2 жыл бұрын
I think that was kind of the point, if you connect the dots, carbon storage is very poor as a solution.
@XDarkxSteel2 жыл бұрын
@@afromaximus Fair and maybe I'm just not getting it but I feel like at least on it's face, this video was taking concrete production as a given and thus the concrete industry existing in its current form, so the only proposed options were what the industry people are giving as their promise to go "carbon nuetral" even though offsets and capture are largely shams. This channel is generally making videos that presents these ideas at an intro level so it's easier for people unfamiliar with the topics to digest, I feel like relying on people to connect dots to understand that these solutions that are being offered won't actually "fix" the world's concrete problem would be counterproductive, and it's more likely I think that someone who's not really familiar with greenwashing or how capitalism has currently been responding to the climate crisis might take these promises at face value and believe that CCS and recycled carbon would do anything but put a dent in the footprint of the concrete industry if it's allowed to continue existing as it does now.
@afromaximus2 жыл бұрын
@@XDarkxSteel Agree with you 100%, just frustrated that people could watch the same video and come to wildly different conclusions.
@karelpipa2 жыл бұрын
Its wasnt proved that Co2 heats up the planet. Also 8% of global CO2 emissions is not that bad, judging by how much of a concrete we make and use.
@danlarsen40822 жыл бұрын
1:52 I think we should all appreciate they just transformed silicon to sulfur. Pb to Au next haha
@ymi_yugy31332 жыл бұрын
Most of the carbon reuse scenarios still emit that carbon into the atmosphere at some point. There have been large parts of the transportation sector that have committed themselves to use conventional fuel produced from captured carbon and hydrogen. There needs to be a regulatory framework that ensures only carbon captured directly from the atmosphere is being used rather than carbon from sources that have previously stored carbon.
@DrBernon2 жыл бұрын
Totally! That is the workaround for the fossil industry. Just as disingenuous as proposing to use trash as fuel. Modern trash burns mainly because of plastic.
@momentomori52632 жыл бұрын
People building houses from mud from thousands of years :Are we joke to you?
@Abcflc2 жыл бұрын
Also, aren’t we running out of construction grade sand? Key ingredient for concrete?
@yoshidasaki177032 жыл бұрын
This is such a *concrete* problem. We need *concrete* solution.
@SympatheticArsenal2 жыл бұрын
Amazing video, with a very concrete presentation!
@SAToomy2 жыл бұрын
I like his voice very nice not annoying voice
@arian_the_worm2 жыл бұрын
Nice video (comment for algorithm)
@humanistheart2 жыл бұрын
Great topic!
@DWPlanetA2 жыл бұрын
Don't forget to hit subscribe! We release a video every Friday :)
@CKBrew2 жыл бұрын
Someone else wishing that the narrator drank a glass of water?
@blankblankity4512 жыл бұрын
What you didnt mention is that roman concrete gets stronger as time passes. Having to constantly replace our infrastructure every couple of years because we use cheap materials is the problem.
@WhiteUnicorn822 жыл бұрын
"They need to go down to zero to stop the planet from heating" - did you really just say that?
@downbntout2 жыл бұрын
A few trees can bank large amounts of CO2 into the ground where it's needed. So can regeneratively grazed grasslands, or a blend of both. Purchasing offsets from ranchers who can prove 3rd-party-verified results, such as Gabe Brown in ND or Will Harris, GA, both USA. This is available now and is reversing desertification. Soil that is shaded can be up to 40°F cooler. In parts of Africa's Sahel, it's being done fast enough to increase rainfall, in as little as 3 years.
@Abcflc2 жыл бұрын
Car- dependant cities with skyscrapers are the main driver for unsustainable construction - architecture needs to change.
@kk-gr3ly2 жыл бұрын
Don't forget the Finnish company Betolar's, more environmental friendly substitutive for concreate.
@maverick93002 жыл бұрын
Those ancient concrete building lasted a long time because they do not have rebar. New building are already crumbling. We're going to perpetually need to rebuild everything with new concrete if we keep this up. We also don't properly value our stuff because we have divorced ourselves from where it all comes from.
@SilvaDreams2 жыл бұрын
No it's because most of them are made of huge slabs of solid stone with concrete cementing them together and also not nearly to the scale that we build things. We use rebar to strengthen concrete to make up for it's deficiency since it is great under compression but weak against shearing so we add rebar to give it strength along the shearing plane so instead of just snapping like a dry twig it cracks and the rebar takes up the load.
@rochellemcdonald96462 жыл бұрын
I have heard of something called "hempcrete". I am not sure how durable that is, but maybe there is a way to make a hybrid with it or use it for smaller projects.
@Geolaminar2 жыл бұрын
This replaces the aggregate with hemp fibers. But the mortar is still the same stuff, Portland cement, so the climate impact is mostly unchanged.
@joelsonsabado92062 жыл бұрын
hemp blocks are useful and cost less
@ULlisting2 жыл бұрын
Small modular nuclear reactors should be used to create the heat for cement production. Existing cement plants need to be connected to carbon capture systems and the CO2 needs to be reused in industry.
@rojirrim72982 жыл бұрын
And... there's absolutely no evidence than any of the 3 things you've mentioned are possible in the near or mid future.
@samdoesthefunstuff71222 жыл бұрын
I love when documentaries show cooking stacks to portray pollution. That’s steam!
@Renthlei_Jr2 жыл бұрын
Cement and semen have a few things in common, they are : Pronounciation wise, they are quite similar They are the core for creating a new thing
@nathanaelbaumgartner2 жыл бұрын
Nice Video and Very informative. It would be even better if you could tune down the music! I seriously think its too much. Sometimes its really hard to concentrate on the voices.
@brettzeigerbacher23142 жыл бұрын
Should have called out the US highway infrastructure that has to be totally rebuilt every few years forever because we can't be bothered to use more expensive stronger/thicker concrete in the first place. So within 2 years a brand new highway looks 20 years old.
@wylantern2 жыл бұрын
The Roman recipe wasn't lost. A simple web search can find it lots of places.
@ImHavingaCoronary2 жыл бұрын
Video: shows steam from a nuclear reactor to illustrate CO2 production Me: quits video
@bunneche2 жыл бұрын
"How can we build cities without destroying the planet" concrete is only 8% of GHG emissions, given these structures last over 50 years this is an excellent trade off. Far better than car and air travel, that contribute more GHG and only last 5 hours
@chalichaligha32342 жыл бұрын
Yes but that 8% is the total emitted over a year, which we can directly compare to the annual emissions of the entire transportation sector which is about 14%. We can't abruptly stop building in the same way we can't stop travelling and transporting goods. Both industries need to clean up and scale down.
@jaxon.roller2 жыл бұрын
I would love to see a follow-up on this when the cement industry releases committed plans. I hope to god it isn't just greenwashing
@donlucchese72802 жыл бұрын
Knocking down perfectly fine buildings is an American invention.
@katm98772 жыл бұрын
Not necessarily. Some countries have such weird building codes and building costs, that they also knock down perfectly fine buildings because it's cheaper to build a new one than maintain an older one. Case in point, Japan.
@unitedhybrid1872 жыл бұрын
Nobody is talking about it because no one knows it's actually a problem. I didn't know how it was made until this video. What's being advertised to us in big ways is power plant, coal, and automobile pollution. The more you know...
@jorahtheandal2432 жыл бұрын
the problem is the same as palm tree oil for the vegetable oils. Palm oil is highly efficient compare to the others, however they still opposed it.
@Alorio-Gori2 жыл бұрын
Thank you
@miamimercenary2 жыл бұрын
We're not destroying the planet, but just make it more comfortable for us,
@eduardo98m2 жыл бұрын
The english spoken by the narrator in the video is very particular, it is perfect, but i cannot pinpoint if it is american, british or australian english.
@LetoDK2 жыл бұрын
Why would you have narration by someone with a lisp? It's very distracting.
@terrorofdeath19912 жыл бұрын
Easier solution just strap a new gen 4 modular nuclear reactors integrated easier than alt energy to massive isolated facilities that need to run near 24 hrs off set the fuel need.
@hippityhop95222 жыл бұрын
If it only produces 8% of emissions shouldn't we focus on bigger things like transportation, moving to green energy and focusing on bigger rich nations like USA and China that are producing the most emissions.
@andrewlambert72462 жыл бұрын
Our concrete doesnt last as long as the Roman concrete.
@jaywye2 жыл бұрын
8:25 "smash that like button"
@Eveseptir2 жыл бұрын
Oh and don't forget about the environmental impact of dwindling river sand.
@DWPlanetA2 жыл бұрын
Hi there, you can view our video on sand here: kzfaq.info/get/bejne/hrOWl6aWu9-9o3U.html - let us know your thoughts in the comment section.
@exterminater2672 жыл бұрын
With how much Concrete is used and produced, 8% is ridiculously low compared to other products in wide use.
@Leo-mc3kq2 жыл бұрын
Dont let this distract you from the fact mr krabs for spongebobs soul for 62 cents
@emmawright77222 жыл бұрын
Versarien PLC has the answer to this - Cementene. I am going to their pour of Cementene this Wednesday at their new Head Office.
@cadamisuldan53922 жыл бұрын
DW Plant A I hope you continue talking about cement, perhaps how about the Fly ash and recycled glass which are been employed these days to partially replace the cement?
@Jakob_DK2 жыл бұрын
Fly ash is on the way out as less coal is burned in power plants.
@hi-3672 жыл бұрын
The FitnessGram™ Pacer Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal. [beep] A single lap should be completed each time you hear this sound. [ding] Remember to run in a straight line, and run as long as possible. The second time you fail to complete a lap before the sound, your test is over. The test will begin on the word start. On your mark, get ready, start.
@Thefutureofspace2 жыл бұрын
The higher the temperature, the more the oceans will evaporate, then there will be more humidity and more precipitation, the desert will decrease plants regarding moisture and carbon dioxide will grow faster, the history of the earth is such that if global warming was antiquity, then it was a paradise for the biosphere,. .and when global cooling was then the evaporation of the oceans would decrease and precipitation would decrease, the desert would increase, this would collapse for the biosphere.The largest desert Antarctica, the hottest place the rainforests.
@filippogasparini40932 жыл бұрын
0.16: the columns are in gray granite from the island of Elba, not in concrete (16 columns, 8 gray granite columns and 8 pink granite columns from the Mons Claudianus quarry in Egypt)
@sepulcrumsumus89092 жыл бұрын
1:40 My dude was treating concrete like if it were nuclear waste.
@crawkn Жыл бұрын
Would it be possible to chemically recover the useful raw materials in used concrete? Seems it ought to be more energy efficient than crushing it for reuse as filler.
@TheArklyte2 жыл бұрын
General "cheapassitude" is not a problem originating from or unique to concrete...
@BlueBetaPro2 жыл бұрын
Hempcrete is pretty amazing climate wise and has amazing insulating properties and fire resisting abilities.
@yakir111142 жыл бұрын
is it just me or 60% co2 is very little? the large numbers are just because of the amount of concrete that is being produced , the efficiency is fine
@freevipservers2 жыл бұрын
The efficiency is not fine, like you stated in your OWN post, the numbers do add up. If the avg foundation(giant concrete slab) weights 7.5tons, then that's 4500 kg of co2 released in the air. The average car puts out 4.6 tons of co2 per year meaning that one house's foundation could be a year's worth of driving. The salseforce tower in SF foundation was 22.226 Million kg, or the same as driving for nearly 5000 years on 1 building or the same emissions as every driver in America(115 million cars) to drive for 0.5 miles.
@yakir111142 жыл бұрын
@@freevipservers so just one year? that makes concrete a lot more efficient than cars, since it just makes co2 ONCE, and you can use it for 100 years after. cars make that every year.
@freevipservers2 жыл бұрын
@@yakir11114 Good observation, it does. I'm not disagreeing with you either but both are issues. I think active pollution is the problem and not concrete to but the 60% of weight to c02 is still terrible. If it was like