tv Eco India Deutsche Welle April 16, 2019 6:30am-7:01am CEST
or. something just. for. the general orchestra leaders during. the renaissance for. georgia to be twenty second. w. hello welcome to eco india a sustainability magazine that gives you the solutions to future proof your life every week we train the spotlight on technologies that are taking us one step closer to a cleaner and a greener tomorrow. coming to you from mumbai in india over the next thirty minutes how would all the nice asian in the western state of budget all that is making
buildings disasters see by using traditional technology our team of german scientists is using concrete to produce clean energy and how it might go to help solve the energy problems of the future. not every time i speak to my grandmother she tells me about so many things she's a good differently when she was younger like starting drinking water in an urban for instance because they were in the temperature control devices when she was growing up and sometimes i'm amazed at how efficient and sustainable the solutions were awful story isn't the same good an organization in bristol i mean dia is stepping into egypt acknowledging to move buildings disasters see they're also empowering local offices and still documents their practices so that they don't get lost among your dictatorships. of.
but. you. must send the money for the left school after the ninth grade it didn't bode well for his future prospects you know what today he teaches students sustainable cup and. how they were there with my previous shops i would walk or do but never have a sense of urgency and a feeling of pride in having i mean something there was no sense of purpose i was a deliberate and i had constant sense of disappointment today i'm a carpenter in the past i was i'm skint after years training at. i can now make anything i'm asked for. a roof anything i would have over.
the other three were. pretty good. but my history now works as a trainer at. a skills odeon did residential school in in the western state of. carpenters from around the country are trained here in sustainable craftsmanship often bought from traditional indian wood work and construction. at the artisans live eat and study together for one year the school to attract dropouts from the formal education system. over the year they learn carpentry and masonry along. i needed to negotiate decent
prices for their products. this school also teaches them principles off entrepreneurship. law was born out of the nonprofit foundation in the vehicle of the devastating earthquake in that region in two thousand and one which claimed twenty thousand lives and left millions homeless. once the rubble was cleared and the reconstruction effort began. to do you sustain
a bill of materials such as storm. talent and bamboo instead of an algae intensive industrialized materials like cement and steel. i'm not going to go both blow up some considerable good dresser. when i was falling too fast and it did collaboration's and empower sustainable building practices traditionally used by the local. the local technologies and marketers that we use are inherently more eco friendly than processed material because there's no processing and water does nor. carbon dioxide being released by users. so they're not going soft eco friendly. indicators first is while producing that material how much resources are abusing and how much i missions of carbon dioxide but does having. the. second as
a viable you have to start technology or timothy to work is the energy consumption of the building itself. so the first part dischord embodied energy of the material the second part is how well the building is consuming energy because of the technology. is it more climate friendly that means is that and what i meant inside more user friendly without using is going to all in france maybe. the whole national foundation has helped build close two hundred fifty thousand homes and worked with many disaster affected communities in india including encourage our jumbo and push me to hard and british helping rebuild homes that are environmentally friendly sustainable and disaster prone.
in good outscored she region for example these sound back stone foundation earthquake resistant. sustainable bamboo and brick masonry but that rap trap born proved popular in bihar. when i shall love buildings are also cost effective especially given that many of them are funded with government grants. to see very few or very less user joffrey see
a main source tree and we try to rely on the things that are available to those storing or sawyer lockdown wards and well if that are available there then automatically the transportation cost was down the processing of the material is not there because. you don't need a second reprint processing of the materials for the cost was down and that sort of the artisans are also locally available even or getting artisans from outside and just makes it really cost effective. no organization has expanded into affordable housing projects to including slum jihad to lucian in a country with one point seven million homeless people sustainable cost is an urgent problem. foundation is part of the solution. older technologies are often the building blocks to developing new breakthroughs take for example our mix story a team of scientists in germany has developed
a type of concrete that mimics the natural process of for the synthesis which is as old as the earth itself can generate energy imagine if every flat surface and every building in the world could help do this let's find out how you. are more than three billion years plants have been absorbing some life with the help of a green pigment called chlorophyll during photosynthesis the leaves transform the light into energy allowing plants to grow. this energy is truly green. and that at the university of castle 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. what i'm on. there using ordinary concrete as their
base the researchers mix it with graphite so it can conduct electricity. after it's hardened the special concrete can function as a positive or negative pole. is an artist boston close to an architect they came up with the idea of using conductive concrete to generate solar power. movement he'd see it also becomes 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 electricity and this conductive concrete is the basis for our solar concrete. to give the concrete the desired characteristics the scientists spray on various layers of colored liquid the result is a dye sensitize solar cell that produces electricity through artificial photosynthesis the order in which the wafer thin layers of color are applied is all
important. with them and if you combine the layers correctly you end up with something that functions like a photovoltaic cell this 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 researchers conducted long term measurements in the lab a single solar cell initially delivered only millivolts what cannot supply over one volt of electricity if you covered with your hands a charge fall sharply and rises again when light hits the solar cell. the cells of fission c is currently just more than two percent that's not much but it's a start. is a lot of it won't without solar concrete are discrete is so interesting because it's really easy to produce it's environmentally friendly. and can be used on large surfaces and maybe one day in the future all the smooth flat surfaces in the city
could be used to produce electricity. i munched. the more cells that are sprayed onto a building's wall the more electricity you can produce to do this the individual cells need to be interconnected under ideal conditions a surface area of one square meter would generate twenty watts of power. the researchers didn't only come up with the design for the cells they've also developed a façade robot you can scale buildings and spray them with solar cells taking the concept to the next level. from one fascinating technology to allow the low when you're flying kites could help solve and as you problems of the future a startup in germany specializes in flying wind turbines and a kites which harness wind power while in flight and there are many benefits to
this technology let's take a look. at this kite could help solve the energy problems of the future. it aims to generate electricity by harnessing high altitude winds. and busy i mean. it's very serious to develop the technology and scale it up to rival today's wind turbines. starting small and have a long way to go well i'm always starting over. for now the kite is attached by cable to a telescope a car mounted on a truck when fully deployed it should soar high in the sky trials are conducted at an airfield in the countryside city but the team is based in berlin. the big challenge right now. it is programming the computer to steer the kite with cables like these used. in almost all of the generator that produces the
electricity is in this truck. in off grid locations the dirty diesel generators are often used in are quite technology could replace them. today's wind turbines are mounted on towers the kites tethered to lines would rise to a height of two or three hundred metres where the wind is stronger and more persistent than closer to the ground. the inner kite laboratory is on a campus of the technical university of berlin. the engineers started experimenting seven years ago with fabric kites. when the kite goes up the lines on furrow and turn a turbine which generates electricity. then the kite is pulled in again which consumes very little power. it's like
a yo yo going up and down. the team has moved on from fabric kites to ones made of carbon fiber. they build them and all the technology themselves and they're always having to redesign and optimize. as a. list of make as many mistakes as possible in as short a time as possible but. we have to learn the mistakes make us smarter and that makes you say. this is the last details for the wingtips right. the wingtips are also made of carbon fiber. the material is very light and stable but it can't withstand everything. unlike the fabric structures can survive a hard landing unscathed. they've been working on carbon fiber kites for two years
now and have already over a million euros on prototypes. once a week the developers drive out to the airfield they haven't made much progress with flying yet. they often start at midnight when there is more of a steady wind. we get more flying time and it gets less stressful so we can enjoy the fruits of our labor. they need to fully automate the steering of the kite but getting there is a slow and complex process. trim a bit of the bottom. after
a year of testing the kite takes off steered by the cables and stabilized by the computer. now they have to program the computer to carry out all flight maneuvers autonomous li. the trickiest phase is when the kite is still really close to its base the software has to be very precise. little mistakes get punished in a big way but we've been practicing for so long that it's become routine. is still flying just a few meters away from the telescopic arm but once the computer learns to guide the cape properly which should start to fly higher and generate electricity high above earthbound wind farms. shifting focus now i go to a world wide is dominated by single crops leading to a loss of biodiversity a group of hobby gardeners in austria is trying to save and grew from the crops. and helping bring back right to your fruits and vegetables talks to be unavailable
. michelle grows twenty different varieties of beans in his garden every year he tries out new types. these varieties he says were eaten way back in the middle ages these days many of them are no longer readily available. produce the seed varieties in the quantities that i want. to have reject beanstalk has three plants will be from one plant and so i can get enough seeds for myself and a further seven or eight people to. the australian initiative supply seeds to hold the garden the group wants to preserve as much biodiversity as possible. many of the older
varieties are more resilient than commercially grown fruits and vegetables the harvest tend to be longer to more than sixty kinds of tomato grow hair says. right now she's testing the so-called russian cucumber. this variety can be harvested until late autumn and what's more it's also resistant to a common fungal disease i'd have thought the old varieties haven't been intensely farmed so there's more genetic variability a greater range that's why they're more adaptable if your chin that it potential is too narrow you can only survive in certain environments but not in others. older varieties have this potential. because book and thought. has long devoted himself to taking care of these treasures there are more than five thousand seed varieties hands collected over a period of three decades. and since they're so robust they could play an
increasingly important role in the process of adapting to climate change. organic produces and garden is also interested in these older varieties they perform better in soil that hasn't been sprayed with chemical fertilizer. we're trying to grow these five thousand varieties in a five year rotation so it doesn't always work that we're trying to do a thousand a year we always take stock and say what variety is this how adaptable is it what's the produce like and we've documented all. bill get that man is in charge of the garden weekends visitors come here to discover varieties they've never seen before in the supermarket. and they find out how to plant and cultivate them. touching smelling and tasting is encouraged here the aim is to awaken an interest in preserving biodiversity. up front that are going to see every plant has its
own story its own way of being cultivated by when you're really know a plant you know these things that's the only f. and isn't this a one of any loss of knowledge isn't impoverishment but when it goes beyond a critical point society loses out to. itself. to prevent that from happening benyamin is doing his best to spread the word he's the chef at the noise show god restaurant and cooks with produce from the garden over the last century there's been a seventy five percent reduction in older forms of crops. it's hoping to make more popular again. so i came from and i always say i've managed to get around quite a bit angel i thought i knew most fruit and vegetables but then i encountered i should know and i noticed i knew only a tiny portion. he uses his new found expertise to whip up tasty dishes.
they've become known all over the region good food and good times this chefs recipe for preserving biodiversity. now to a story that will bring my. i retired aircraft engineer it is giving underprivileged children in his community a chance to fly high and providing an experience that would seem like an impossible dream to many like them. the idea that. it's a day these children will remember all their lives for many it's their first time aboard an aircraft but this plane won't be taking off. the flight to nowhere is an airline with a difference going up with all the other worth it offers passengers an environmentally friendly taste of flying because this plane is never leaving the ground well i
don't know the other passengers are treated to a full in-flight experience. they receive boarding cards. safety briefings even refreshments are served on board it's an eye opening experience. i have seen planes in the sky i used to think they were really small but now i know they're actually huge. i now want to fly to london. a beautiful city. some lucky passengers even get to visit the cockpit. the man behind the project is about hard work and gupta a retired aircraft engineer by les sold his land and bought the decommissioned airbus a three hundred back in two thousand and three for six hundred thousand rupees that's about seven thousand euros a real bargain he charges people according to what they can afford as little as a few euro cents or even nothing at all for the very poor. i belong to
a very small village. and i never expected el becoming then you know and then maybe in their lane and then people from i believe your party they had a cough and they were not able to do that for better or basic idea and basic you know the motivation that i work for the sake of the poor people. not far away a busy main road that runs parallel to the runway of delhi's international airport it's the perfect spot in the evening to watch planes land. even though air travel puts a lot of climate warming carbon dioxide into the atmosphere the age old dream of flying remains a desire for the poor migrant workers here. i let my own it's my dream to someday take a plane and fly to my village in bihar but that's only if i manage to scrape together enough money for
a take out. further on at a railway crossing regulars here swear that this is the closest you can get as the turbojets take off. god that in my village the planes are really high up in the sky but from here you can see them up close it's an amazing feeling. i don't know why did. we may not have the money for a plane ticket me but but that doesn't stop us from dreaming about what it must feel like to be up in the sky. back on the flight to nowhere person just simulate an evacuation to finish the experience. rarely has an emergency situation seemed like so much fun. i hope you enjoyed to be stories we've been to many more such stories each one gives us new hope for a sustainable future good bye and have a wonderful week. every
i come from the loss of people in fact more than a billion the future was not just democracy that's one reason why i'm passionate about people and aspirations and they can sense. the television the book is trying to in the end after the fourth of the planning one i remember thinking at the time if the bubble in broken for what anything can happen if people come together and unite for a while. but i do the news i often confronted difficult situations more conflict screen does something stand i see to sponsor my job to confront floods he does on policies and development to put the spotlight on issues that matter most. to security oppression nationalisation. the not chance to achieve that so much more needs to be john and i think people have to be at the heart of solutions my name is
on the touchy about and i want him to tell feel. close. to know that seventy seven percent. are younger than sixty. that's me and me. him to know what it's time all voices. on the seventy seven percent talk about the issues. for all politicians to flash from housing boom boom town this is where. local to the seventy seven percent. this weekend g.w. . water stunts are people fight for survival. but all. equally dangerous. floods and droughts
climate change become the main driver of mass migration you can write any apocalyptic scenarios you want and probably most of them to come to. the climate started here thirty years on t w. french president emmanuel mccall has vowed to rebuild paris is not true dom cathedral after it was severely damaged in a fire on monday evening. firefighters battled the blaze for hours managing to save the overall structure of the building one firefighter was seriously hurt. her as ian's gathered at the site to express the shock and sadness the cause of the .