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tv   Eco India  Deutsche Welle  April 17, 2019 12:30pm-1:01pm CEST

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it's faster everyone needs to but. the lack of water is equally dangerous. there's junk you just leave will move south so they can plant crops and find food. floods and droughts climate change become the main driver of mass migration you're going to write any kind of peace not if you want and probably more time to come to . the climate exodus starts april thirtieth on d w. 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
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a greener tomorrow. coming to you from mumbai in india over the next thirty minutes probably although my solution in the western state of budget office is making buildings a disaster see it by using traditional technology how a 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 dime i speak to my grandmother she tells me about so many things sugar differently when she was younger like starting drinking water in an urban forth for instance because then when the temperature controlled devices when she was growing up and sometimes i'm amazed at how efficient and sustainable these solutions were awful story isn't the same good an organization in india is stepping into a joystick knology to move buildings disasters see they're also empowering local offices to document their practices so that they don't get lost. among you what
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dick's dollars. but then to my he's pretty 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. with my previous shops i would work all day but never have a sense of for a chief 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 and the past times i'm skint after years training at car because i can now make anything i'm asked for a table
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a roof anything. but here. the other three were. pretty good. but my history now works as a trainer act. as skills odeon did residential school in in the western state of gujarat. carpenters from around the country are dreamed here in sustainable craftsmanship often borrowed from traditional indian wood work and construction fees. at the artisans live eat and study together for one year the school attracts dropouts from the formal and. occasion system.
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or do year they learn carpentry and masonry alongside the skills needed to negotiate decent prices for their products. this school also teaches them principles off entrepreneurship. shallow was born out of the nonprofit who not shallow foundation in the vehicle the devastating earthquake in that region in two thousand and one which gleamed over twenty thousand lives and left millions homeless.
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once the rubble was cleared and the reconstruction effort began dozens opted to use sustainable much utile such as storm. pallets and bamboo instead of and the g intensive industrialized materials like cement and steel. but never to go both muslims and considerable good to us here. on ash i love was falling too fast and it did does a new 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. govern darkseid being released by users. so they're not going soft you call friendly. indicators. first is while producing that material how much
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resources are abusing and how much i missions of carbon dioxide that does happen. the second is a volume you've released our technology where do you know what is the energy consumption of the building itself. for the first part discord and warded 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 notion of foundation has helped build close two hundred fifty thousand homes and worked with many disaster affected communities in india including in good
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gerard jumbo and push me to be hot and british helping rebuild homes that are environmentally friendly sustainable and disaster prone. in good outscored she region for example these sound backed stone foundation earthquake resistant. sustainable bamboo and brick mason injury but that wrap trap bomb proved popular in bihar. buildings are also cost effective. especially given that many of them are funded
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with government grants. to see very few or very less. and we try to rely on the things that are available about stalling or soil. and if that are available there then automatically their transportation cost goes down the processing of the material is not there because you don't need a second 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. organization has expanded into affordable housing projects do including slum jihad to live. in a country with one point seven million homeless people sustainable low cost is an urgent problem. foundation is part of the solution.
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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 to generate energy imagine if every flat surface and every building in the world could help do this let's find out how you. know 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. 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
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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 is need see 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 decide to spray
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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 on the five shift if you combine the layers correctly you end up with something that functions like a photovoltaic cell 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 law a single solar cell initially delivered only millivolts what can that 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 see is currently just more than two percent that's not much but it's a start. solar concrete are discrete is so interesting
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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. 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 to generate twenty watts of power. the researchers didn't only come up with the design for the cells they've also developed a fa├žade robot you can scale buildings and spray them with solar cells taking the concept to the next level. from one fascinating technology to another law when you're flying kites could help
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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. this kite could help solve the energy problems of the future. it aims to generate electricity by harnessing high altitude winds. the busy. servatius here develop the technology and scale it up to rival today's wind turbines. we're starting small and have a long way to go while 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 country saucily but the team is based in berlin. and.
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the big challenge right now. he's programming the computer to steer the kite with cables like these. 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 intercut 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
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pulled in again which consumes a 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 motto is also has to make as many mistakes as possible in this short a time as possible but only once it is why we have to learn and the mistakes make us smarter and then make the product safer. as it is causing this is a lost details for the wingtips right to do. the wingtips are also made of carbon fiber. the material is very light and
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stable but it can't withstand everything. like. structures can survive a hard landing unscathed. they've been working on carbon fiber kites for two years now and already over a million euros on prototypes. the developers drive out to the airfield they haven't made much progress with flying yet. they often start at midnight when there's more of a steady wind. we get more flying time and it gets less stressful so we can enjoy the fruits of labor. they need to fully automate the steering of the kite but getting there is a slow and complex process. trim a bit. after
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a year of testing 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 . trickiest phases 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 metres away from the telescope. but once the computer learns to guide properly it should start to fly higher and generate electricity. earthbound wind farms. shifting focus. by single crops leading to a loss of biodiversity
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a group of hobby god knows in austria is trying to save and grew for crops from very rare seeds and helping bring back a variety of fruits and vegetables talks to be unavailable. michele to her 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 for any border on average of beanstalk has three plants probably from one plant on so i can get enough seeds for myself and a further seven or eight people to. the australian initiative i should know our supply seemed to hold the garden and the group wants to preserve
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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 and 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 she has long devoted himself to taking care of these treasures there are more than five
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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 produce isn't garden is also interested in these older varieties they perform better in soil that hasn't been sprayed with chemical fertilizer. trying to grow these five thousand varieties in a five year rotation 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 we've documented all. bill get that man is in charge of the guard not 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.
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touching smelling and tasting is encouraged here the aim is to awaken an interest in preserving biodiversity. of upfront that are going to see every plant has its own story its own way of being cultivated you know came by when you're really know a plant you know these things. from this investment you a one team of any loss of knowledge is an 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 noir 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 curl. it's hoping to make more popular again. when i always say i've
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managed to get around quite a bit angel i thought i knew most fruit and vegetables but then i encountered a huge noise and i noticed i knew only a tiny portion. he uses his newfound expertise to whip up tasty dishes they've become known all over the region good food and good times this chef's 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 other that got off with it 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. on
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a 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 oh 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've 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. beautiful to see. some lucky passengers even get to visit the cockpit. the man behind the project is the harder chant copter 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
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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 i'll be coming then you know and then i'll be in their lane and then people from my village you're putting that off and they were not able to that so that was actually a basic idea and basically look at 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. it's
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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 it a relic 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. why did. we may not have the money for a plane ticket me 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
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been to many more such stories each one giving us a new quilt for a sustainable future good bye and have a wonderful week. this
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is. going to. come under the hammer. prices. that's today's art. and it's good. but who decides what's hot what's not. investing speculating winning and losing we meet some movers and shakers.
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made in germany thirty minutes. kill africa. good spirit missing. look at that. and didn't hear it could go in. the can in gods cause hardly makes sense. and environmental projects with sustainable energy. doesn't grow. in ninety minutes b.t.w. . during the civil chain reaction of breasts.
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began around six hundred years ago. in the renaissance the revolution unfortunately enabled this mission see the people became aware of their abilities and strengths in a new way there was an outpouring of self-confidence mentions it. architects . scientists. and artists. are going to meet invented completely new things and top of the ancient giants who had originally been its teachers live in the. culture of the darkest moochers into a mud. hut the second song t w.
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this is the new. live from our lead pollsters give indonesia's president a wide lead in his bid for reelection djoko we don't owe that to win the vote in the world's largest democracy and almost two hundred million voters cast ballots in the contest between him and x. gen but what would his victory mean for.


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