ah, hello guys, this is the 77 percent. the platform with issues and share ideas. you know, on this channel, we're not afraid to talk to kids talking. young people clearly have the solution. good future loans to the 77 percent every weekend on d w. ah ah the world population is glue, and more and more people are living in metropolitan areas around the globe where

there's a greater need to create a living space and build houses. but with consequences for the environment more than a part of the carbon dioxide emissions worldwide are caused by the building and construction sector. what steps can return to create a more sustainable construction industry? that's our topic today on eco india. hello, welcome. i'm son that i for a 4 story we had to india us desert state law, just thought maybe take a look at an innovative architecture project, a gold school that was initiated with the help of a non profit organization constructed using traditional methods and local materials . the building meets more than standards of energy efficiency and sustainability. at the same time, the school provides an important social impetus for the education of goods in one of the most remote parts of india. ah

ah, here in the taunt as it in the far west of india's reduced on state, it gets very hot. temperatures can push 50 degrees celsius in the summer. in the midst of this hostile landscape lies in almost space age structure. it houses the wrench. murray raton, of 80 girls school, where children from po pat grounds are getting an education. the building is both futuristic and traditional. the oval form helps funnel air through the court yard, and at the same time is a symbol of female strength. for its u. s. architect the design post challenges that she solved by during on local techniques. there's been a lot of time there over by 8 years and the more i got to know the people and i got, you know, the buildings. i learn more and more about the sophisticated a elements of engineering that went in to ah, it went in to being able to a bill in sam, which is,

you know, no smoking eat, it's always shifting as well as changing and also to have on the walls and the structure b or be able to withstand the heat and keep the buildings, you know, cool or cooler was sort of my objective. many of the traditional techniques, the kellogg turned to and methods that have been practised here for centuries. and have stood the test of time in an unforgiving climate. inside the school, there are no energy guzzling air conditioners. yet it's at least 10 degrees cooler than our doors. in the winces, the building traps hot add to keep classrooms warm. some 40 kilometers away lies

the fortress city of jai, so math known as the golden city. it's historical buildings constructed from yellow sandstone that glows in the sunlight. diana kellog discovered the local material was ideal for her design. the sandstone actually has an inherent thermal value. there's an outside layer and then there's kind of a softer inner layer which it almost acts as an air cabin cavity. and then another interior layer. ah, in addition we use line luster, which is a natural cooling o element ah, which you know, help us to lower the temperatures are as important as local materials. well, local crafts people, the building features jolly's lattice stonework, which keeps out the sand. and let's light and air in solar panels provide enough power to cover all of the schools electrical needs to help keep classrooms cool.

the roof is covered with recycle tiles that reflect some light with its use of traditional building techniques. the project aims to improve lives in the community, associate architect rehabing. so what closely with the artisans? low in those at the height. oh, it's the direct sunlight into the room with heats of the room. but it gives us enough nephews laid with health though to learn to read in the night. really, we have all the furniture being made by the local carpenters. and we also have this nice long sheet, which is done by a craftsman from this silly me, for every medieval in the school is being made by all the local carpet does and craftsman the wretch come. i re raton of archie girl school was built within a time frame of just 10 months. it solar panel canopy doesn't just provide power,

but also much needed shade a place for students to play while sheltering from the heat. throughout the school spouts, harvest rain, water, and ancient technique no longer used in many parts of india in the courtyard to trees preserved during construction of her a habitat for beeson birds. the project was launched by the cheater foundation india blue. the whole vision for the school was conceived by michael daub us artist who has been coming to jaison there for the last 20 years. it was his dream to open a girl school here. the conservative state of rochester has india's lowest female literacy rates. the desperately poor villages around j thelma and close to pakistan have been particularly behind on women's education. we have schools all over the district even at the border villages, but we don't have teachers going there. and the teachers get paid more than what we

are being our teachers at school right now. and the infrastructure is dead. oh, but the implementation is not being dig is not windy hard taken care of for that's the, that's a problem all away. and yet, i shall she has been teaching english here since the school opened. in july 2021. just over a 100 girls streamed through its doors, then an achievement in itself. people in rochester have long been skeptical about girls education. it's typical for poor parents to send their daughters out to and money instead. joshi says persuading them to send their daughters to school is paying off. any like your eyes when a get an a sub i'd where ocoee he do 8 me. it is a go guns here to study to do after 10 years. i mean, she could become a teacher there, local community either to debbie's goes compass regularly and then you see them talking openly with gifts and visitors. easy, happy that we have done something positive for them anyhow, lane, but yogi, at what thought, tammy, normally t, i, science. he is

a farmer like almost half of the women and girls in ranch austin. she's never had any formal education, but she's full of hope for her daughter. is going by day monday alley and dad are busy body and school. they get to study bell. they get proper food. they get good food, free of charge. when was on that our girls are, i hope she gets a good job. her day, mercedes and i been locally leg isn't there. near most of the pupils or from homes like vast and doris dell attend classes at the school until at least the 10th grade . receiving an education that will help them earn a livelihood and surrounded by architecture, that's not only climate resilient, but that's willing them to dream big. it's the material that literally holds up buildings and thus our civilization together.

concrete. it's been used since in shunt times. however, it's production is anything but environmentally friendly. given the effects on global warming, something has to change. but how sustainable and concrete really be. and what are the will turn? a dips are reporter took a look. in the temple you're looking at survived longer than the civilization, that filtered even through barbarian abrasions on the collapse of the roman empire . the pumpkin is still standing up nearly 2000 years. that's because of the super material here concord, it's simple. it's strong, it's treat, and that last one, cross a love concrete has become the foundation of modern cities in high living standards . but it still so a climate killer. the cement and concrete industry is responsible for about 8 percent of the wealth, carbon pollution. and even though it's all around us, we don't talk about it nearly enough. so how can we make concrete clean?

how can we build cities without destroying the planet? the ancient romans were muster, engine it. they made a special motor out of wet lyman volcanic ash, which they used to bind small stones and brick. they used it to build some of the greatest wonder that the ancient world. but when the roman empire fell, so did the secrets of making volcanic concrete. it wasn't until the 19th century, the english brittany had joseph asked and invented portland cement, a fine powder made by heating, limestone, and clay in a kiln and grinding it down to a powder. this was the precursor to the mud and cement industry. soon concrete was at the heart of a global construction boom of everything from cities and houses to roads and dams. but the concrete we use today the fundamentally that different from what the romans had. it still made of just a few key ingredient, some ant water and cheap. philips like sand and gravel. the cement is what gives

concrete bass. it's incredible strength and toxic emissions. at super high heat, the calcium cabinet of the limestone and silicon dioxide of the clay joined to form strong calcium silicates. but the reaction also release of carbon dioxide that heat supplanted the calcium and silicon ions on the silicates, dis, associate linsmith to that to water. as a mixture dries, these form crystals that fill gaps in glue material tightly together. by mixing smit, assigning gravel, you can make what is essentially a strong, durable, artificial rock, the very little money. and that's why this ancient invention is now the most widely used material in the world up to water. the concrete industry expects emissions will ride from $2.00, dig a tons per year to $3.00 by 2050. they actually need to go down to 0 to stop the planet he took, but the emission from concrete a how to get rid of is not just the carbon dioxide from the chemical reaction we soraya. it's also because manufacturers been fossil fuels to heat, kills, to the 1400 degrees celsius. they need to break down the component old. that means

making one ton of concrete release with more than 600 kilograms of carbon dioxide into the air. it is incredibly carbon intensity. it is definitely a yes, we probably will continue consuming more. ready this is joanne alina next, but in d, carbonite industry at the environmental think tank e 3 g. she says, cemented honda to fix when pollution from say cause o'clock. the pot simply make sure that you understand such is more fish. you constant. ready change the fuel use bonded read some technical challenges in wage. concrete is so hard to make without hurting the climate. shouldn't we just stop using altogether? well, festival, the rich well have been building with concrete for more than a century. people in the lower income countries have a right to build affordable housing and infrastructure that can stay strong in the face of extreme weather. but the 2nd problem is that alternative to concrete aren't

necessarily better in some parts of the world sustainably. so some timber has a huge potential to replace concrete and store carbon dioxide at the same time. but building anti cities out of trees would put too much pressure on forest that already struggling. okay, these not the problem. cookies actually the solution. this is georgia to city to a civil engineering professor at the university of lisbon. most people think that belief has a huge impact on the out, right. but google has the cause east, the most is so it concrete has really had to stay then how exactly can we make it green? in october 2021. the industry took a huge step forward and unveiled its plan for doing just that. a big chunk of the savings by 2015 basically boil down to efficiency. for instance, 11 percent comes from industrial lighting,

the process of making concrete. then there's things like heating, kilns with o time to fuel pot from binding rubbish, and waste incineration plus o making cement with leftover material from steel and coal plants. it also includes some carbon dioxide. the concrete naturally absorbs the time. it's a process of construction industry could speed up by recycling, crushed concrete from old buildings and injecting. it would seem to another 22 percent implants savings come from designing more efficient buildings and extending the lifetimes. and this isn't entirely in the hands of the cement industry. it's also about how architects and engineers design all cities. they could retrofit old buildings instead of knocking them down and design new ones to last longer, just like the raymonds did the pumpkin, went from a pagan temple to a christian church. but the big question mark is the final that capturing carbon dioxide offer it submitted and then storing the technology broadly exists in plants like this, just not cheaply or at scale to can the industry guaranteed that enough comp and

will be captured by 2050 when the 1st trials and cement plot thrown, he just happening now. this is that no, no, no you can. i stand. yes. we have to stay. don't make that the good you mature on. oh, you just, you'll still get the commercials. get rid of that because this is tom argue, ceo of the cement industry, lobby group that oath that the roadmap. by the end of the decade, they won't tend cement pumps fully equipped to capture cop and for reuse. so storage, it took a, i mean we need to, we need to work on it. that's why we call it the clothes with the actors that you change the race. that's initiative either to remake you to make it work. but despite had gone to green face and it's advertising, the concrete industry has not yet made detail how it will stop. it says that will come later in the, in that what google

vision are required in experts. a big part of the solution would be incentivizing the industry to change my tax and carbon and subsidizing emerging technology. ready but because cement is a profitable and alternative still in the early stages of development, governments would need to push it along the right track. it is a very effective service. i've been very lucky to meet in the facebook policy pressure. people don't really think. ready there are all ready pockets of goodness. a british company a successfully captured sir to from a cement pumped in front and turned it into materials that can be you can construct . in sweden, a pilot study has shown cement, can technically be made out of electricity without using fossil fuels. though this would also mean even more demand for clean energy. in norway cement factory set toy

from the carbon capture facility in 2024. that should single handedly half the plan's emissions. it's a common thread behind all the solutions is making low carbon concrete cheaper. and that takes policies, investment and research. the average consumer doesn't think you have the place already with government. that doesn't mean you don't have a voice show. you can choose how much concrete is in your home. but the more tension, the cement industry gets, the more pressure to face, to go green. to find green, building materials and move away from concrete. it's what looking back to ancient construction techniques. that's the idea. followed by an architect who works on his projects mainly and thumb. nod. he uses natural materials like lawman, lime, store, to build his eco friendly homes. ah.

these walls can breathe. yes, you heard that right. indian cities are strewn with concrete and cement building, but some architects are trying more eco friendly or sustainable alternative. ins is an architect from tom in nato. and he's trying something different to build houses with clay, limestone, gravel, stone, and rocks. belinda dod mckenna are been in the boy the main people think that cement has to be the main component of a building was downloadable, but to men is actually very wasteful. for me all that new york, it's produced after exploiting a lot of natural resources from the earth and water. but if you do rest, i get all the world welcome. when in the end, on the we can't recycle some at either end of the letter. so i decided to keep the submit in my projects to a minimum of hunter birth. ah, what makes i announce construction different is that his house's let in cool air and keep the humidity under control. even when the outside temperature is hot,

according to its new residence, the building remains cool. burning already the wave on the lift. this type of construction affects the way the building is insulating itself will be inflicted. under we have a leaner, but when the temperature outside is cool with our it is totally opposite inside. rumba or is that up along and when it's really hot, it's cool. inside our home and that feels refreshing a vendor on booklet shopping. i know says the types of money houses can stand for several decades and my indian architects should be using these materials. but the automobile grammar doesn't bug people think it's a simple mud houses. it was in more than that. it has no life in any of them and can't last longest day i believe. what are the many i'm they think cement is long lasting on that might go again. would it be a see monday the nothing but when continuously exposed to sunlight and water for 10 or more years. i think wanted cement can wither in got that can become loose. i've

got a number. if i'm doing one, you know or done me as long, long upon but mud houses breathe in the hot air and i got them indic, spell the cold air like temperature which doesn't stagnate inside or you got the woman you yet got to look up as a result in these mud houses can last a long time, but the not even up to 75 years old than usual. i and i believe that the impact of this construction can extend beyond just one house in the money building or gardenia the. but since these houses absorb heat or do it in the plants around them or benefit from the cool air you had in the building, wouldn't it? but i'm getting you. but we've seen that plants around these structures in the much less water city compared to plants around a concrete structure. lulu the venue would not in the city, but the he holds that clay houses will help people fall in think with major once again creating

a building to show the viability of sustainable construction. that's the aim of a project in berlin. the suck in the house would be built almost entirely from waste and reused materials as an innovative model, the residential and office building in dense to prove that the principles of a circular economy can also work in construction. welcome to one of the most innovative co working spaces in berlin. inside and out. it was built with 2nd hand materials. a wooden booth was once an artistic installation by yoko ono now, which allows you to make phone calls and work undisturbed off to the to even this door is made of recycled plastic research. and we were used it here for the 2nd time. quite a bit of a look. ah, the materials for these lockers came from an exhibition at berlin's berk hind club

. and the sofa set was salvage from the trash from an old office building. it's napoleon tissue, we called builders. we see a demolition site and we see what we can reuse. local us with a heat up of the upper floors are still under construction. the circular house is being erected on the site of a former brewery in berlin. built almost completely from construction waist. it is your hint at him, so the vision behind the circular house is to show that circular or sustainable construction is possible boil. it hasn't really been done in this way before or few of the building sector causes 40 percent of global emissions and 60 percent of global waste vendors. our goal here is to show that we can build differently for the future, just on us to bone for the building began in 2019 on a place of community oriented living and working 3 floors are being added to the breweries former warehouse. they will house office space and 8 apartments at rents that even less affluent people can afford,

in berlin's tough housing market. he is on a lot else. margin people from marginalized groups can find living space here is lot to do. that means people who are shut out of housing because of their origin, skin, color, or incomes. and kind of, they're getting that the mutual added value here is to be able to experience this diversity. and to really create space for holds herself as much tiriel as possible is intended for later dismantling. and we use most is screw together, rather than glued into locked rather than cemented and natural materials are used, which can lay to be composite down your booklet. and for law, i use our simple wood walls with straw as natural insulation to dusty, then it's all just plastered with clay. middle in for puts, oh, the impact hub has already moved into the ground floor, a co working space for social and nonprofit enterprises. one of these is the start

up jobs for refugees, which places refugees in the german labor market. there were practical reasons for moving into the circular house. as could mentioned the man english are, there are people here who do work like ours. they may be concerned with other social issues, but up perhaps facing the same fundraising challenges. for example, good of us. that we need public funding and we can get support and expertise from other social enterprises that may already have faced. the same questions used in flight to gosh, membership to town. building a house from recycled materials requires clever material sourcing the startup con killer, also located here, fines and acquires building materials from condemned buildings from lamps and hardly used kitchens to glass facades and intact elevators. as platforms and position as a platform were probably most like tinder air, supply and demand matchmaking platform bringing people and material together

rambling too much. lee idea that you build forever and then tear it down again after 10 years because it's cheaper. we believe that no longer sustainable does, man, i'm not what owns on my management hardware. it sounds like a simple concept for the future of construction. yet the sector is struggling with the reusable approach to mind as a school does for one thing, the mind and really isn't there yet. it's on the for another planning takes much longer and the logistics around it are completely different because, and that also leads to increased prices. but the founders of the secular house are convinced that sustainable building can and must work. because resources are finite . conserving these finite resources and editing fuel pollutants in the production of construction materials. those are the issues we have to solve in the near future. as the need for new structures continues to grow,

the challenge will be to build them in the most innovative, an eco friendly way possible. i'll leave you with that and see you again next week . good bye. and thanks for watching. ah with ah ah, with

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