discovered. you. subscribe to the documentary. our energy needs are shooting up every day heat electricity and water are all things we can brood about at home but producing these utilities emits carbon dioxide and contributes greatly to each of carbon footprints over the lifetime what can be done to reduce emissions and meet all homes most sustainable that's what we'll explore to be hollow welcome in core india. coming to you from mumbai over

the last century of rapid industrialization and urbanization made sure to whom speak you listen this in sync with the natural environment we live in many of our building practices used over time harmed nature instead of helping it try for an architect we met in delhi is favoring the path to legal homes eco friendly again. the new delhi skyline is a mixture of modern skyscrapers and energy intensive poorly designed constructions . carbon emissions from buildings are often neglected from the climate debate but in india buildings alone are said to contribute to 40 percent of energy related carbon emissions. architect melungeon has been designing sustainable functional

buildings for over 20 years. he says the need is now urgent but there are still a lot of misconceptions about what green building design really means. the biggest myth is that people believe that it in home is one that has a lot of green plants you put in a lot of plans you know lawn and glass it becomes pretty which is not so in a green with thing it's actually green because it respects nature and it. kind of uses the replenishable sources resources and reduces the state of uses consumption and we recycled a lot of materials. one of the valves designs in new delhi is famous for being india's 1st 5 star rated green home called green one. the home has been certified by research and policy organization the energy and resources institute. large windows provide lots of not to the light while double glazing adela to be

a new feature in india insulates the building keeping it cool in india's hot summer has. no valid work with green one on oppression to do i come on to make his home sustainable. one important factor for going green was sourcing local materials. next door identical a lot of people out there oh look it's a mature. and those houses have lost war they've lost much more than my house why because they have. spent on a lot more expensive things there for example prague and italian marble all day maybe gold fittings are getting very very expensive finishing so actually it turned out that my house less. and those. the house also generates renewable

energy and harvest serene water. today it is able to capture 75 percent of its water demand and can also save up to 40 percent of its power. one explains that these features be off over time. i think it is still worth it if you spend 10 percent more or 15 percent more and after 5 years it base for itself and then after that it runs virtually free of cost and you are giving back to the future generations you're giving back to the environment we are now coming into the concept of you know 0 carbon exit or buildings which are going to you know give back more than they consume i think that's the need of the are right now may not the moment india has it on 1400000 more than homes that are built with the green concept. which constitutes less than 5 percent of all residential properties

. the indian green building council hopes to take this number up to 10 percent by 2022 and some states have already begun giving more incentives to green certified constructions. however this statistic excludes the countless temporally homes and those built by hand in india to missional homes that are often green in their own right. be with inspired by or structures that history has to be studied because historically what people have been naturally it is normal that they are the best structures and that what we do is we can temporize it a bit so that we can use the same materials but in a more contemporary we're using modern technology so that it is a value vent so that it's easier to maintain it to be. more valid innovated his own house in the year 2000 he was inspired by the traditional methods of releasing and

building based on the environment i used all the broken pane that came out from the toilets so all that were broken and used in the form of a factor and since a lot of them were late as it reflects a lot of heat as well. more people can now afford the initial investment and more indians are getting conscious about the impact of their choices on the environment . they strongly feel that astin ability has to start from home and you have to adopt a 1st enable a state before you want a sustainable and green building so i think the consciousness has come in and i know make or not this really really pick up but i am sure that this. situation we have been receiving a lot of. from clients saying that does simply fire homes now does give more open.

let's go in for more green measures let's go and plant more trees because they help you know taking care of pollution as well. as the link between personal choice and the environment becomes clear. this need only continued to grow. now like we just saw using solar panels. but installation can be costly and battles are not all this efficient in conducting sunlight into electricity what if we could use it in di a villain for genevieve electricity or university in germany is looking at ways to do just that. photosynthesis on our planet dates back almost 3000000000 years today's plants harvest the energy of the sun with the help of a green pigment comb chlorophyll in their leaves it absorbs sunlight to produce

chemical energy which enables the plant to grow this energy is truly green. that the university of consul scientists are trying to use the same principle to generate energy a team of architects artists scientists and designers are working on a building material that will transform sunlight into electricity like a solar cell. the basis of the system is just ordinary concrete the researchers mix it with graphite to make it electrically conductive when it has hardened it can take on various electronic functions acting as a light switch for instance. as an artist tossed into an architect they came up with the idea of using conductive concrete to generate solar power. you know most many of the guns know what you see here looks like

ordinary concrete but what's special about it is that it's sensitive to the touch as you can see and that's because we've made this concrete capable of conducting unlike tricity and this conductive concrete is the basis for our solar concrete will not be taught. to give the concrete the desired characteristics the scientists spray on various layers of colored liquid the result is a sensitized solar cell that produces electricity through a kind of artificial photosynthesis the order in which the wafer thin layers of color are applied it's crucial. you have you combine the layers correctly you end up with something that functions like a photovoltaic cells one layer contains dye pigments when the sunlight strikes them electrons are released and current starts to flow. to improve their di sensitize solar cells the research is conducted long term measurements in the lab

a single solar cell provides just a few volts of electricity if you cover it with your hand the current fall sharply and rises again when mike hits the solar cell. the cells current efficiency is 5 percent it's twice as high as it was in the research started. solar concrete are discrete is so interesting because it's really easy to produce it's environmentally friendly and can be used on a large surfaces and maybe one day in the future all the smooth flat surfaces in the city could be used to produce electricity. couldn't the more cells that are affixed onto a building's wall the more electricity it can produce to do this the individual cells need to be interconnected under ideal conditions a surface area of one square meter could generate 20 watts of power.

now the researchers want to take the concept to another level they have developed prototypes of façade robots that could in the future scale the outside of buildings and print solar cells on them in 5 years they hope to roll out their solar concrete so it can be used to construct new buildings and upgrade existing facades. that inspired us and like me i'm sure many of you have wondered what can you do about all the plastic use and dispose on a daily basis we've all seen the headlines that tell us how it 1000000 tons of plastic makes it into the ocean every year but is that an equal friend alternative to plastic available to us a scientist in indonesia may have the answer to a question. plastic waste as far as the eye can see here north of jakarta a grim normality in indonesia as much as 3000000 tongues end up in the ocean every

here. and that's why nobody more ya know wants to change her aim keeping the seas clean is solution see wheat. the green weeds not only fields of the water of unwanted talks and encourage biodiversity. they also are an alternative to plastic packaging. how can we solve it if we do not have something to replace this plastic because of course we cannot go back to. our eggs him. or live without plastic as a picketing so we have to think about this in freedom and the only friendly. like the one she has come up with. the sheet here is a result of 10 years of research as a food. scientist financed by institutions and grants it's her pride and joy she

uses a red algae that has a special polymer that makes products make from it very pliable the foil can be kept for 2 years and it even dissolves in hot water practical for popular products like instant coffee over 200 companies worldwide are testing the foil and though it's edible you don't have to eat it. everywhere. and it will be affected i said for plants or death just saw it. there and it will not go up you're. not a 1000000 us advantage there are plenty of seaweed farms in her country indonesia is one of the world's biggest producers of seaweed around 200000 farmers work under and above water like up to seclude he cultivates 300 lines in pang

gang one of his clients is noting more ya know. in the past he was financially unstable but now his take home pay is much more secure. i don't want this thing on and then yeah. he said siri farming is full of promise that we hope it will enable us to pay for the best possible education for our children. but if i doubt it's much more profitable than working as a fisherman specializing in aquaculture. we hope that seed we will always flourish air and that we can maintain its quality here. the sea we've business here is often a family affair the women tie the seedlings to the mines and to take care of the finances not email your not teaches them the business side of things to gain independence. meanwhile the men are responsible for the

cultivation and harvest around 2000 families supply for millionaires by a plastic she regularly meets with the heads of communities to exchange the latest production numbers to pay fair wages she cuts out middlemen. the most important things that. drive me to. this is about. this they are. out there so they have no access to basic needs so some of them also have the fixed name of human trafficking so i think it's fair. to help them to improve the lives. when the pandemic has eased not the more you know we'll need more suppliers to scale up production farmers like.

it's primarily big food chains and cosmetics distributors who want to see their products wrapped up in seaweed demand for plastic free packaging is growing and she's using a raw material with massive future potential. it's not just the energy and materials to be used inside our homes that have an impact on the what we used to build our houses and apartments with takes a toll but there are alternatives that are more environmentally friendly than others we visited a home in england made entirely out of a material that many of us commonly associate with wine. you can use cork for wine bottles or to build an entire house. this one in eastern england is actually made completely of cork and it's entirely sustainable i've always been slightly dissatisfied with things that we typically build with especially in

housing so you know concrete blocks mortar plastic foam insulation the whole collection of things which and up being quite so the negative impacts on resources to my. mother helen thomas team experimented for almost 20 years cutting interlocking cork blocks until they found the best structural solution the $1268.00 blocks are slotted together with mortar. alone holds them together and no additional insulation is needed. it does have a smell all of its own a bit like inside a cigar box. 44 square metres of comfort and security modern. rather like an ancient mine. temple. has long been used them building facades. this holiday home was built in 2007 in northern portugal. of the cork

oak. time has left its mark on this house. course and chilling with the environment moves in changes color that's exactly what vasco likes about it. as it rains. when it's wet here this one is behaving just as we expected. these sharks want brown color it's the color of the reaction to the. wetness of the atmosphere it's very sensual material it follows the seasons it changes through and through and through the year. a tribute to portugal's national pride. because the world's largest korku forest it's a paradise of biodiversity and a boon to the climate. what is going to lose because the court

has a unique system for each dawn of course we retain $73.00. to and in the 3 species that we don't cut we just peel the bark of the tree. the trees can be up to 200 years old the core can be harvested every 9 years but the bark grows thick enough to be carefully cut. a spot of course are increasingly replaced by metal and plastic stoppers the oak is in decline. so the rediscovery of cork as a building material is welcome. it's not is also in line with current trends. you don't get to put something on the outside of your house if you don't like so people 1st have a visual and aesthetic satisfaction with the product it is at the same time a roost the contemporary visual. hundreds of constructions using cork have been

built private homes doctors practices schools. but there's never been a building made exclusively of cork like the house in eaton. matthew helen was pleased with the result and given the almost 0 carbon footprint he'll certainly be able to sleep with a clear conscience. one of the go to options across the world today when it comes to building fast affordable homes is shipping containers they've been used to build hospitals hotels restaurants and even makeshift schools but skeptics have sometimes questioned their feasibility as a sustainable building block a design a do employee seems to be finding solutions to tackle the skepticism by providing a more eco friendly tone that if.

not long ago this daycare center urgently needed to extend the building and decided to try something different opting to use discarded shipping containers not be the steel boxes how's the playroom for children with the land mass geography and incidentally also about how to live sustainably. i was searching for something that can be quickly go septic and if at all in future we want to change something then that option is there because it's a mobile you kind of construction. sonali part and dark about run the company that provided the containers. defended the studio alternatives in 2016 to design and build homes work in space and just about anything that can be contained within for. all using discounted shipping containers.

the motivation that we have to work behind this is also a big environmental factor where we feel that nothing should go waste and we should be able to work with all kinds of material that we have around us so as humans we've created so many complex. 20 of us and that we ourselves don't know what to do with and it is just ending in life and. since 1956 shipping containers have been the standard rail forwarding freight built with corrosion resistant steel they're used for cross-posting for about 12 years after this period to sit in junk yards waiting to be melted. but melting shipping containers uses $8000.00 clue what our finance repurposing them into buildings acquires just 5 percent of the pot. if your ex is there and you're following that guiding principle

of creative reuse the partners with keen to show you what's possible. so the design and build a home for donna and the family made and dialing out of scrap and 3 discarded shipping containers. so this entrance door is made with all the windows and. fine ones who enter this house is made of it. the 25th or do you know what it into a 2 bedroom house is a kitchen sink cum wash basin so with the distinctions of keeping the plumbing in one can do you know. the effect of some of it the washbasin something made out of only fatter lead water can be used even on the side. of the blue house at a cost of $17.00 block rupees or $22000.00 euros as

a show to convince new buyers for an. effective and environmentally free living space. the shipping container can be up to me does the it needs to be created to eliminate exposure to toxic chemicals and also to prevent trust the studio alternative spokeo that's containers looking from a boat in mumbai each one costing up 200000 rupees $1300.00 euros a typically container takes about 3 to 6 months to make and can subsequently be transported to any part of the world. it has a much lower carbon footprint than homes built with cement for example which is one of the biggest producers of carbon dioxide worldwide. but as yet these homes made from discarded containers on a still something of an experiment rather than

a go to housing solution. this becomes mainstream in terms of acceptance that people thing that you use is not because i can't afford it but because it's making as an environmental science so to be achieved that probably you know it's just in the impact zone where we're trying it out. the designers have built 16 homes so far and saved close $220.00 tons of steel. and perhaps even more important they're spreading the word of rehabilitation and eco friendly constructions amongst the youngest interest . i hope to be as episode has given you a sense of how people around the world are making sustainable choices when it comes to the living spaces and i hope you had many takeaways from it we'll see you again next week until then stay safe big good care of your loved ones and yourselves in the box.

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. this is do you have a news flash from berlin in you need or strike has finally sealed the deal on an unprecedented 750000000000 euro coronavirus recovery fund after 4 days so peter talks leaders agreed on the details of loans and grants to be given to countries to its hottest by the buyer it's a breakthrough came after a man whose 90 hour session question any broke the record for the longest e.u. summit in the.