oh, ready news. welcome to tech told me about hackers and paralyzed me to your societies. computers that oh sure you and governments that go crazy for your data. we explain how these technologies work . how do we can only go some for and that's how they can also go terribly with what you know, new tune ah, welcome to global 3000 empty seats. how brazil, schools are trying to attract students back to class hot. i and the steel industry

needs to clean up. it sounds that even possible and low current house, south africans cope with an erotic energy supply. without electricity, a modern world would grind to a halt. no power means no. mobile phones, no internet access fridge is no heating, no cash machines trains at a standstill and they petrol either. and crucially to it means darkness. according to one study, last year alone, 315000000 people worldwide experienced major power outages. why do they happen? poor maintenance of power plants lack of modernization or simply to few power plants for the growing demand. on top of this climate change driven extreme weather regularly brings down power lines and pilots in south fraternal a cancer,

a frequence occurrence for years. the state attic tricity supplier has struggled to meet demand things with the means to find a way around when it's dark and the power goes out. it's especially hard 2 and a half hours of total darkness and large parts of so ito, because the national energy provider can't generate enough power and it happens up to twice a day. for no, to love debate, it means that her scans won't be ready in time. they need to be banked fresh each day if they're to sell like hot cakes. normally business is good enough for nope, which will the do bet and her daughter to get by. but recent weeks have been tough . the power was switched off daily in their district. a state mandated energy saving measure, known in south africa as load shedding. you know,

changing duty, jo, chugging is driving us crazy. i have a small business and we're trying to grow. but this is holding us back a long time we gave you sometimes i have things in the oven when they shut off the electricity and i can't finish baking them then. then they all have to be thrown out. agatha, she's angry at the government, 2 and a half hours without electricity means getting her sconce to market that much later . and then cuts into her earnings the whole country is suffering as a result. for the past 15 years, south africa state owned electricity provider has had to interrupt supply to certain areas to prevent the power grid from collapsing. however, this winter has been especially hard and it's affecting all sections of the population. janice schecter is an entrepreneur who also runs against house and one of johannesburg wealthy suburbs. her life is organized around the power outages.

so we have as low as that shows per suburb. way. we're going to have maintaining that we're going to have state went from 7 am to 4 pm and not every one on the group is going to zoom in there suburb, the power will be switched off every night this week. at least they're stover ones on gas. so luckily we can finish making dinner. we can, we can, we can be on line for fun on the hall. usually we actually sit and chat. i. yeah, there we go. okay, sir. okay, so would i need to do a need to get some lights on? well, yes sir, janet schechter turns on the battery powered lights that were charged during the day and are distributed throughout the house powered by a battery. and this recharge as, while the power is her husband brings

a battery powered light for the stairs. so no one falls down has been coming down the stairs. this is, this is the darker side of south africa is so that august, the 5, the country has all the raw materials. it needs to produce energy, mainly domestic coal. it's bad for the environment, but there is enough of it. there are enough power plants to but after years of mismanagement and corruption, there so poorly maintained that they're feeling more and more often. the power has never gone out as often as it has this winter. those who can afford it are making themselves independent from the state power grid in johannesburg. many are installing solar panels the ideal solution and a land where the sun shines for 9 hours a day. even in winter. that's crazy busy, it's. we didn't rain tomorrow. do people wouldn't understand. we getting up to 500 phone calls a day. a lot of the people that tell us just made it so long

take lunch in the power cuts are promoting the use of green energy, but only for those who have enough money. most people here can't afford the roughly 15000 euro investment. for many years ago i to we, we headed the electric stove and we made it a conscious decision to move away from electricity. we had a nice serene top glass top and we moved away from the the glass top and we went to guess i would suggest to 2 people out there to look for you. alternate of sources. look at green energy, look at your solos and see what's available on the market. he advises people to have as many different energy sources as possible. that way there's a back up if one power source fails. but that's too costly for people in the townships. not only do they have to live with the power outages,

the constant shut offs have damage. no, go to the do bed stove. it still hates but only on the highest setting teacher or and off. yeah, get back to me that i had to go to meeting and i wish the government would listen to us here because it's not just my stove that's broken. it's my fridge has stopped wash, nato will keith. when the power came back on, there was a power surge. and now i don't have a fridge. let a government good tell us when a let this thing and me and she just doesn't make enough money with her scans to buy new ones. in europe to the war in ukraine has led to rising energy costs and fee as of fuel shortages. more than 50 percent of the energy used in germany's manufacturing sector comes from electricity and gas. the chemical and metal industries are the biggest consumers. but they also offer the greatest potential when it comes to

reducing our overall energy consumption and cutting greenhouse gas emissions. this is the metal that makes the modern world tick. imagine life without it? no cause homes, dodge electricity. but this one, the material that alive the built around tardy, the dirty secret that nobody is talking about. the steel industry is responsible for jaw dropping. 8 percent of the wealth greenhouse gas pollution. and bizarrely, we're actually going to need a lot more of it to clean up our economies. so how can we make steel green and what's wrong with the industries favorite solutions? there are 2 reasons. the steel making process was so dirty, the 1st of purifying the iron or needed the steel by heating i annoy choco fires o mixing it with coca cola and big bloss furnaces. you can extract pure iron from rock. that's like an oxygen atoms in the iron ore fly off and bind with carbon

atoms in the cold. what's left behind is essentially pure iron known as reduced. i'm and a whole load of c o 2. the 2nd reason steel sac said that it takes colossal amounts of energy to power this process and most of that comes from you. guessed it. burning coal today. 72 percent on a global level are produced by this production about. this is vito attached a steel analyst at german climate think tank a got an a give and he says we're running out of time the investment decision steel make of make to day a crucial because the co fire blast furnace we have a lifetime of 15 to 20 years and after that need to be repaired or retired. the 2020 very critical decay in this regard because more than 70 percent of the global blast furnace will reach the end of the contain lives and

require reinvestment and re investment decision. so what should still make us be doing right now? either july, due to high tutoring, gym wonders of oxygen and hydrogen gas and fuel that can be made cleanly with renewable energy. oh, much less clearly with fossil gas. if you reduce ion or with hydrogen, oxygen atoms no longer react with carbon atoms to make c o 2. instead, they react with hydrogen atoms to make h to the beauty about this concept is yes, you need a new production process. but as a byproduct, you have water instead of c o 2 and, and this is how we can make the feel making process. the 2nd step then feeding the purified ion into an electric on venice. these devices meltdown scrapped steel or reduced iron with high currents of electricity

that turn them into liquid state. and ideally, they would be running on electricity made from renewable energy. that's pretty much what swedish steel make a s s a b did last year when it delivered the well 1st batch of fossil free steel to comic of over europe. steel make the betting that hydrogen will be the future of steel right now. it costs more to make this way. but if gas prices stay high and carbon taxes rise, switching away from fossil fuels will become increasingly attracted from a business perspective too. but of course, using hydrogen to learned doesn't make steel, greek. it's a process with several layers. kind of feels like an onion. this is kaitlin's wallack, a steel analyst at the u. s. based non profit global energy monitor. the 1st layer is to make sure your electric arc furnace unit is running completely on, like green energy. but then you need to make sure that the reducing agent and the direct reduce iron plants is hydrogen. but that's not enough. you have to make sure

that that hydrogen is actually being produced through an electrolyzer that's operating on 100 percent green. i'm renewable energy, sir. time for hydrogen right? well, unfortunately, over the couch, you need a lot of hydrogen like really floats. making all the steel in the you out of hydrogen would require about $6000000.00 tons of the gas. just to satisfy the steel industry, hydrogen needs. you need almost as many wind turbines of the you have to date is not impossible, but it is a logistical nightmare. one of the big challenges is where we build these hydrogen ah, production facilities. it needs to happen in places that have that renewable energy capacity. the problem so far is lots of steel making regions, dirt, habit capacity, poke at least, don't have plans to build a top anytime soon. and piping or shipping green hydrogen from elsewhere requires

infrastructure to do so. and that all means hydrogen can't be the whole solution. but the powerful waste simplified the problem. that sounds almost too good to be true. recycling, you might not expect it, but still is already one of the main recycled materials in the world. more than a quarter of the steel made today comes from recycled scrap steel the need that's basically because the 1st step of purifying iron or is expensive melting down old steel. well, that's much cheaper. we have a rising stock, global steel scrap because whenever a car, whenever a breach, whenever a building beach at the end of the lifetime, this deal scratch is collected sorted and then can be melted in electric, oxygen to produce new still recycling most feel can massively help in cutting the industry of energy demand. but there are limits. each time you price

a steel little impurities, like cauffron nickel can sneak in and we can the metal. that means you can't recycle it forever. a 3rd solution has to keep the blast furnace as we're already using, but catch the emissions before they escape into the atmosphere. that's what advocate the carbon capture, cooling for. fossil fuel companies say the principal, a simple stick box on top of the polluting pipe and sack up the sphere to that comes out so you can use it in industry or start safely underground. the reality is trickier. today, capture rates are often low and casa hot. what's more, the fossil fuel industry has used the promise of common capture and storage will cease yes, as an excuse to keep on polluting. but when it comes to the colonizing heavy industries, i must do broadly agree that c c s of the vital role to play alongside hydrogen. we're way behind and where will be promotional and going. and this is largely down to complete inaction on the of the policy level. this is eva penner from the

cleaner task force. it's one of the few environmental organizations calling to put money into capturing carbon. one of the reasons why we know we don't know answers to questions like capture rates are how would that work in the commercial scale is because your companies have hunter actually reduce their mission. the international energy agency expects carbon capture to cover half of will steal production by 2050, the climate friendly scenario. if it works, it would free up hydrogen to be used in other processes that are also hot clean. but to date, we don't really know what chair of emissions cclc can actually capture from steel. if steel make a stick to blast furnaces, but c c s doesn't quickly become cheap or efficient. the cold a burn, we'll just keep on polluting. we console steel by giving up on it, but there's a huge amount policy makes and companies can do to get the tech solutions working

access to education, a shared learning environment and a group of peers barely anything is more important for children. but the corona virus pandemic turned life upside down for around one point. 5000000000 children worldwide with school was closed. homeschooling and remote learning became the reality for many education was already a global issue. even before the pandemic, the 258000000 children worldwide had no access to schooling, the pandemic made the situation much worse. for months, 463000000 children found themselves out of school. and even in early 2022, millions of children were missing from classrooms. most schools have reopened, including and brazil. but many children are still staying away to i hey, victoria, lima loves to slew the route. she wagner and gabrielle have tough cases to solve.

together there for school detectives on a special mission lies them every little bag and i l u, vomiting. got that was c. as in nancy, we're detectives because we look for missing students and bring them back because he wants to can also him. but when this school in rio de janeiro reopened a year ago, almost half the students didn't return. during the pandemic, homeschooling was an illusion, says principal carolina taylor. a lot of students have no smartphone or internet access. they stay away, but schoolmates track them down. it's been a penguin, asian with asian life. it's good for the children themselves. to play a major role. you think they can motivate their classmates in the say, i'm here, learn any come and join us. like he them say, asked ovation, that the school sleuths are inspired by budding detectives from tv shows and the principal found their outfits in carnival collections. dressing up makes the

paperwork more bearable. together they pour over lists, students who are often absent or fell to hand in assignments will get a phone call later or personal visit 1000 students. one goal more this visit is don't cancel or in the wrong things on the street and they should come to school and learn something valuable if everyone should go to school and have him push. oh, carolina taylor looks out for his students here. their days are structured and they receive a meal and moral support for to annie. her principal is a role model and confidant. i wish this isn't much more martha, the children need to change their reality themselves at age. now the school is open and waiting for them as well that may i but by wild only. yeah, they are planning to pay a surprise visit today. have you though? not far away from the school. cutlass eduardo is also looking for missing students

. known as car do, he's one of the few who venture into the fabulous insert of them. are clues my place that socially invisible is a bit about fulfill. people don't talk about it. if somebody, if you will grab, there's nothing here after he to be president of forgotten place. dorothy, now i got gauge garcia, students are older. so instead of studying many of them work to help support their families. will he find missing students here? anyone who wants to enter this for vale and needs to know someone like silver people, your work without contracts or future security. and as brazil social inequality grows. so do the formulas. without it to cation can do, says it's impossible to get a good job. suddenly high school dropout, gabrielle shows up nice all up, but that up by me on which one would love i now salvage air conditioners with the

scrapyard. was this i watched up on them your was if you dropped out before the pandemic, right. right. aren't none of the melody? none of that. a likable, same to lunch, gabriella, left before the panorama. but like so many, we weren't able to reach him. we advised, he's one of those who dragged out. i mean, free of us on can do hopes gabrielle will return and that schools won't have to close again due to cov, at 19 each qualify close schools be, you know, safe space. no food here. no education. i mean, well, carolina taylor and her student chavonee, visit maryland at a faces for check her. when school re opened, her children didn't show 3 missing kids with the same last name, the detectives alerted the principal don't want no mama, when the student has any area. so me, they all shouted principal carolina. then every one knew i was there, that level thought me, i'll tell you that. but i've had a ride or money back then she popped by in person because marlena didn't realize

school has started again despite all the news in the papers and on social media. that's because marlena is illiterate. you've gone wish finish. you can look, i can, but i don't want my children to be like me that i can't read and write on it. i want them to go to school and have a future sh carla. went to pa, thank you, ma'am. a lot of students will need years to catch up back at the school, the 3 detectives are handing out documents for the new academic year. after the holidays, they'll be moving on to high school. they all plan to keep on studying. i feel like you know, things going simplify. my dream is to be a teacher and a principal though. so i need to work hard that by don't my some of that on the board, the tree. i will have to be replaced by 3 new detectives as they have accomplished their mission. by the end of the school year, almost all of the missing students were back in class.

a dog is a person's best friends on there. certainly one of the world's most popular domesticated animals estimate suggest around 470000000 dogs accept as pets worldwide. but the picture is not always as rosy as this one. millions of dogs a cast out by their owners every year. they end up in rescue centers or roam the streets as strays. exact statistics are hard to come by, but animal rights activists suggest as many as 202500 1000000. and the pandemic st . made things worse. taco has a new sweater. something he could have only wished for when he was still living on the street. but now when he has a new owner, they're not as i do me a buck for more of them, it ice, it was love at 1st, scientifically. when i saw him, i thought he so beautiful as will believe that what he also seem incredibly old.

holy cow, cold, but i'm pretty sure he was abandon, tyler, and i like i've been back are likely doesn't remember much about his former life. he was probably left on the street by his previous owner at the beginning of the pandemic in los angeles, gomez. the only allowed thought as was that he couldn't see out of one eye and the vent suggested surgery to remove it is keesa. they thought he'd been beat were very badly for the war. so he underwent an operation to listen to hear your thoughts. animal rights activist, andrea galindo was the one who found him out with this during locked down. rumors circulated that post of threat to every dog in bogota, but yeah, they just hear if what that really but okay, it was horrible that people thought that dogs were spreading cove, it quote or not. people just abandoned them, no matter how long they had the dogs to what i have even 7 years in course, yet they those hanging. it was just merciless and terribly hard on the animal and

we thought, oh my daughter, oh, what they were used to surviving on the streets outside like i did suddenly they were alone. my dad with rosie and those hill lip about for over 2 years, volunteers have been working to care for the strays they collect food and trying to provide veterinary care. but there are just too many dogs impulses at the almost elissia and yes, we receive donations out and people help us. i don't. there is a lot of solidarity. young echo more by ease i asked, but people have to be able to afford it in seattle. cl is fun. good on this. and there's a lot of social inequality in our country. jack towns ha and that means that we can't take care of all the animals on the mileage. some of the dogs are lucky and find a new home like poco did. the son of paco's owner is really happy about having

a new family member. and polco. clearly he's pretty happy to. i want to that there are too many stray dogs running around, but we can improve their lives. yes, i'm you. for animal welfare activist huntley a galindo paco's new life is validation enough for her work. she has lost count of how many dogs she's helped, and every animal she finds has a place in her heart. no, and i think i feel, you know, it's hugely gratifying. i always tell myself that's one animal of humor that suffering. but too few strays are as lucky as bako. his new owner says faith led him to her. is legal. these i, because the pandemic gave us pocketbook gills. i'm was case a give to year. we have no idea how much you change your life. that did it in left

field. i think he was predestined to find us. so look at 4 more. it just take him 3 years to find ourselves. the goal is to be fun. this is his home, but it does look awesome. there are still over $60000.00 stray dogs in bogota, each one also hoping to find a forever home. and that's all from us at global 3000 this week and do drop us a line to global 3000 at d, w dot com and check out our facebook page d w global ideas. see you next week ah, [000:00:00;00]

with and i tonic monument that also holds a world record to this very day. whom cathedral the tallest church in the world?

we climb the steeple, delve into its history and meet its caretaker's minster. in 16 minutes on d, w. e co india, the 0 way sprig is as robust as concrete and consists of trash, foundry dust is the main recycled material away. ready product from muscle production, which is usually dumped into nature, mixed in a bit of plastic waste and it's done, he killed. ah, in 60 minutes on d. w. ah. with william how to think on

it. gonzalez, will i and was hi. and if i had known that the boat would be that small, i never would have gone on the trail. i would not have put myself and my parents in that danger who caught up the theme of the little that akita slater would love on central hospital, on the liberty of the give them i had serious problems on a personal level and i was unable to live there, but it wasn't good of it. you want to know their story info, migrant, verified and reliable information for my grants. how did she become at all for hitler's favorite director? and how did any become a forgotten filled pioneer for leasing styles and donald funding between hitler and hollywood in 1932,

they set out into the icy wilderness of greenland to create a life threatening film project that became a major milestone in their lives. love, seduction. and power ice cold passion starts october 8th on d, w. ah, there's a dw news line from berlin, brazil's to leading presidential candidates, are headed for a rough vote. after neither received a majority of the ballads. with nearly all votes counted left as challenger in the form of protestant luis house eula to silver is ahead of right wing incumbent