i how life is lived in prague checking in 30 minutes on d. w. ah, what secrets lie behind these walls? discover new adventures in 360 degrees. and explore fascinating world heritage sites. t w world heritage 360. get it out now. mm hm. oh, in the northern hemisphere, every one is longing for spring, but hasn't it arrived already? for years many plans have flowered earlier and earlier. this has consequences for insects that need the flowers. and 4 birds that feed on these insects is our ecosystem going off the tracks.

hello and welcome to to morrow to day the science program on d. w. ah, the weather around the world no longer follows the calendar. the consequences of global warming are obvious. but what can be done to stop climate change? many are counting on green hydrogen. yet even germany cannot produce enough itself . that is why it wants to import it and is counting on international partnerships. for example, with angola lo, adam, and undergo long hair, a hydro electric power plant generates green electricity. the columbia river provides the water. it's the largest river in angola. whether it's the rainy or dry season, according to the operator, as it always carries enough water to produce enough electricity. the capacity is enormous, but not even half is used. logan,

that you mark up. i see that these loca, has a capacity of 2070 megawatt lentil, the year on average moore's. we produce between 70800 megawatts a day, said sam bush. oh, so you can see that at the moment bliss, we are not using our full potential image at there, but this yellow meal up out of 6 main turbines, a maximum of 3, a currently running meaning unused hydropower. germany should benefit from this surplus. electricity could be exported to germany in the form of green hydrogen. the 1st german angola and hydrogen symposium took place in angola in may. 2022. talk a little bit about or girls comes from for the symposium. a starting point for the symposiums is the understanding that a successful energy transition will not be possible without green hydrogen on the top of the store. in the fact that germany will be dependent on in ports of green hydrogen in the long term line built of important fun gluten versus shutoff. just

over a month later, a memorandum of understanding was signed and berlin. the plan, together with san angle angola, state oil producer, the 2 german companies, golf and conjunct her want to bring green hydrogen to germany. your harbor mine. we have identified a joint project here we are talking about an electrolysis capacity of $400.00 megawatts, right in the port area of barrow, done the hang of beat badly. dunden. angela is one of africa's largest oil producers. but stay tuned. san angle is increasingly investing and green technologies. the project with germany office, sol, angle, and opportunity to further strengthen the company's green division which but arm was north in now that we hope will then at the end of this process, there will be only winners or confirm in the following sense. i always will spend probably that diversification and sustainability of sadangos portfolio that meant

if it, the, for an effective position or as an angle in the energy transition. but almost sound, the promotion of technological and innovative research were foul and a transfer of knowledge transfer though quincy men from germany's point of view and goal is advantages as a partner and not only its great potential in terms of solar, wind and hydropower. but also the fact that the country knows its way around the energy market. in addition, in this specific case, part of the infrastructure already exists. the low cut arm is located in the north west of the country. from hair, there's already an existing overland line that transports electricity to the coast to the town of barret, or dander san angle is building a port here originally for the transport of liquid derivatives. but now an area for green energy projects is being added. the location has some advantages for german companies. golf's managing director says not sure,

news. the nice thing is at the port. we already have drinking water supply there. so because we also need water for electrolysis, there's a big river nearby, that's also a huge advantage. so we don't have to do any desalination of sea water like in other areas. we have the complete export infrastructure already there. among other things, and electrolysis plants is to be built here in the port. hydrogen will then be produced using electricity from low occur and water from the nearby river. the electricity is used to spit the water molecules h 20 into hydrogen, h 2 and oxygen o 2. in another step, nitrogen and 2 is added creating ammonia and h. 3. ammonia becomes liquid under high pressure. the conversion to ammonia makes sense because it's easier to transport than hydrogen. the liquid ammonia will then be loaded on to ship's hair and delivered to

germany. to so as to what that means, there would then be a large ship landing on the atlantic ocean coast, a bit north of luanda one foot. this would then be loaded with probably 708085000 tons of ammonia from us 4 times a year. so we expect a total production of $280000.00 tons of ammonia annually. it wasn't on that one yet. in germany, the ammonia can then be converted back into hydrogen and used for energy production . angola could thus be the 1st country in the world to supply germany with green hydrogen. if all goes well, green energy from low occur could begin its journey to germany in early 2025. according to current plans, that would be the equivalent of 1450000 megawatt hours per year. that would be enough to supply around 450000 households with electricity. career

light is most of the snow seem to fall where it's not needed. and not in places that needed for winter sports, like the alps where this february was 3 degrees warmer than usual. globally, climate change is playing havoc on the weather and we have to get used to more extreme weather events like droughts and major heat waves. not to mention storms and heavy rain, we humans have to adapt. and so to all other species in spring time has arrived in germany, meaning more time to baskin that lovely sunshine. nature emerges from hibernation and we can delight resulting rich pageant of color. and isn't it great when you are mornings, get off to such a warm and sunny start the face and the skin? i'm not so sure. it's not just us who spring starts early for plants and animals to

we are in in fooling, which could mean them getting out of sync with each other. biologist, christina, women and her team are looking at the impact of climate change on nature. lenses up when species missed each other, as it were, and as a risk of some actually dying out or stay on. the field of phonology involves the study of recurrent natural events in relation to seasonal changes. the fina logical calendar divides the year into not 4 but 10 seasons. each of them beginning with a biological state of a specific plant. the calendar starts with hazelnut blossoms and ends with a large tree, shedding their needles. but there's been a shift in the fina logical seasons, as is evident from a comparison of data from to day and a period between 19611991 instead of on march. 3rd spring now dawns more than 2 weeks earlier on february 14th, which at the same time makes winter's shorter. and that shift is

a consequence of climate change. apple trees starting to blossom. another typical indicator of spring has moved forward in germany by 10 days over the last half century. and there have been similar changes in the animal world too. short distance, migratory birds, and those at hibernate, such as tit, now started reproducing about 2 weeks earlier. and at this point, potential breeding side rivals long distant migrants like pied fly catches and red starts have yet to return from africa. the timing of the migration is genetically programmed, and based on the length of days, there are winners and losers. the earlier arrival of spring is called season creep and has an effect on reproductive cycles, feeding relationships and competitive systems. christine roman is also a senior member of finance. a project comparing plans in botanical gardens, in different parts of the world, stands the transcript and decline of imagine you have a small plant under large

a plant plant because you got that competing for food and water of course. but above all, for sunlight column list one, been unequal, suffolk, sick of normally the small appeal of benefits from its life cycle being quick, hind figure, flanks in, for, but that's advantage is gone. if the larger plant sprouts earlier was 5 big thing, plants near the labels to close up, steve. less exposure to light is bad news for plan. ecosystems are sensitive by nature and interactions between plants and animals are finally tuned. in time to phase the life cycles are like interlocking gears. when one partner engaging too late or too soon control spanner in the works. the adventist bring sees flowering plants, pollinated by insects, and then blossoming. insects become more active as temperatures rise. plants on the other hand, take the cues to sprout from other signals, such as soil humidity and longer days. so sometimes,

insects might not be out and about why the plants are in blossom. and as they miss each other, the former are denied. and the latter, there pollinators, the phenomenon has yet to be thoroughly researched. but what is already clear is that extreme weather conditions in the wake of climate change increase the likelihood of a plant pollinate or mismatch among the species at acute risk or a specialist like the scarce large blue butterfly. in order to reduce young, it's dependent on its sol hose plan, the great burnett blossoming at the same time, it lays its eggs. the butterfly is one of around a 1000000 species under threat from climate change. one and 3 species of plant and animal. and those rely on their own needs are especially vulnerable yard, as common as a general rule. the more specialized the species as the bigger problems it will have with changing environmental conditions single. and the 1st to die out are the specialists species that are highly adapted to particular conditions. but they will

be followed by the more flexible generalists and the disappearance of species means that the ecosystem stock to break down. they come under increasing pressure and face a growing struggle to recover from extreme weather events, and that in turn few as the extinction of further species. their demise also means the loss of functions that are crucial for humans. many of the crops would grow, eat, or fee de livestock need animals to help generate seeds and fruits. fancy, in fact, insects are not present and sufficient numbers on it will obviously have an impact on plants, reproductive success, and on fruit vacation, which will be visible in harvest, yields, under our name at honda. while earlier springs at 1st sight seemed like something to welcome, they mean excessive stress for nature and for a lot of ecosystems, a major threat. so the honest is on us to put the brakes on climate change and

preserve them precious diversity of flora and fauna. o, it's an old tradition in many countries. when spring arrives, the house is thoroughly mocked out in what is usually simply called spring cleaning . but that household dust is not only a nuisance. it can also be bad for your health. a whole range of environmental toxins can be hidden in it. a good reason to take a closer look at those tiny particles. ah, no self respecting home would be complete without them. and they typically hang out in neglected corners nooks and crannies. dust bunnies. oh, how stuff looks awful bound is annoyingly persistent. although

it appears gray, it's actually a rather colorful mixture. about 80 percent of house dust is made up of tiny textile fibers from clothing. so 1st and carpets. then there are flakes of dead skin shed by both ourselves and our pets and her again of human and animal origin. minuscule parts of pants, fragments of insects, and fine grains of sand carried in from the streets or no shoes. and that's just what we can actually see. dust also contains invisible particulate matter, some of which is created when we toast or fry food or even if we blow out a candle after a romantic dinner for 2. but the main dos slang as are ourselves. even when we sit still, we release around

a $100000.00 dust particles per minute. the slightest movement can release about $1000000.00 particles and more significant movements can release as much as $10000000.00 particles per minute. the dust we find in our bedrooms is a bit different. it's mainly made up of shadow skin which turns our pillows and mattresses into a special bio type for a tiny parasite. the dust might dust mites feed exclusively on human skin flakes. a teaspoonful of bedroom dust contains about a 1000 mites and nearly a quarter of a 1000000 of their fecal droppings. we breathe in these droppings while we sleep, and it's these that trigger house dust allergies. oh,

every liter of air in a typical german home contains up to 50000000 floating dust particles. when the air is warm, they rise. when it's cool they fall down again. which is why so much dust gathers on the top of furniture. but is not just dust particles that rise in the wall. man, there are also substance as emitted from our flaws, furniture and wallpaper. these vapor particles invisible to the human eye get caught up in larger dust particles. germany's federal environment agency has looked into what exactly accumulates in the door and it's not good news, as environmental toxicologist marie kirk. hello sir. garry explains miguel doctrines if you live many pollutants get caught in the dust for keeping them in

your indoor space and an armored audio in. the rob looked how these might be past the sizes. for example, i, many of which are toxic for reproductive organs from schofield and just current. and then there are also fear sides or flame retardant. or other substances such as d, d, t's or pieces of bees which are hardly degradable. we up our barzon. look on human, these can damage or immune systems and effect various organs just to him, some of the substance as respected of cause a cancer due to stabbing our fat metabolism or promoting obesity to fix it is a very wide spectrum. does forget the spectrum there, pirates? oh, so it's time to rethink our perhaps overly casual attitude to dust. what the scientists suggest, silva martin is going to cleaning is very important and that means mopping floors and also wet vacuuming. this is the mature dish. that's the best and most reliable way to remove dust naturally and airing is important to this ventilation improves indoor air quality and gets rid of some of the police target tighter shots of him.

i've asked harden this method on the other hand is rather less effective, at least when it comes to pollutants. philadelphia into stops, organ and fancy, didn't stop as many people think that back seeming remove stuffs from the home. props already. but in fact, most machines just disperse it more to the fee, so it's important to dust using a damp cloth and mocked down flaws, stopped rushing off, which fissions against which to your mask. numb microfiber cloths can be effective hair, in addition to attracting dust particles almost magically. that tiny fibers also hold on to them particularly well. plus you don't need a cleaning agent. so it's good bye to those fluffy little dust bunnies lighted dust particles. don't make it all the way to the lungs. ultra fine particles on the other hand can. more than 100000 of these tiny particles can float

in one cubic centimeter of air on busy roads. it's one reason why diesel engines have gotten a bad reputation. what many people don't know is that heating with wood is even worse when it comes to fine particulate matter. heating with wood is becoming increasingly carmen. wood ovens are inexpensive, but to have an unwanted side effect as people cozy up to the oven inside of their rooms, the smoke can be harmful to health outside. according to you climate packed ambassador tanya baron's. look 1st, what song is, the appellation is the largest environmental risk factor for premature data towards failure in our corporate europe. ian's di, an average of 2 years earlier, because of appellation of cost, more than it seems to me, it would be a simple step to hope we're burning and i and reduce particulate matter pollution on stomach fine, stop the last m sessing just how much pollution to would ovens cause to answer that

we visited the cause rural institute of technology. akeem did law is researching fine particulate matter pollution on busy urban streets by comparing them with the whirl residential areas. littler and start sensors here in the village of students, a beauty. the results are surprising. the rural air sometimes has more fine particulate pollution than can be detected at the next talk. in downtown stuttgart, germany is most polluted street in causeway, of course, on called the air and causal, as well as the new students. a bush's development is actually good until the evening moved him. we talked the natal chose twice as much pollution at midday the novel, but the situation changes when the wood ovens are lit in the evening and for the air is then more polluted with particulates that can make it into the lungs than it

stood, cuts, neck, auto how poor we were talking about a factor of 3 over an hour. middle sticklers results are confirmed by numbers from the german federal environment agency. the approximately 11000000 wood burning stove in germany. create twice as many fine particles as the emissions of all the cars and germany streets. the pollution gets even worse because the particulates are created, where everyone lives. us michelle to from window. lucas, what's really perplexing now is that these are cars, understandably lead to diesel gate because fraud was involved off to hot with wood stoves, fields, where we have lots of harmful emissions in residential areas. hard does no discussion with a whole kiner discourse. sure. the need for this discussion can be seen in a variety of areas, even at the cause we're institute of technology. research has looked at the effects

of wood smoke on human log cells for a few years. a new technique is much more realistic than the traditional method of filtering out particles and then dissolving them and liquid and adding them to a cell culture. now, as in the lung, lung cells are aspirated directly in the machine with send outward smoke. just if you similar to and i know it simulates a deeper part of our lung foot in the lower bronchial albion area la home. when, when you inhale, you've already moved past the upper part of the breathing pathway from this optim huffy at the ties caused particles who had been removed with cancer, and the aerosol becomes warm and moist. good. what does alice spirit and we're not foolish. our, if the fine particulates have passed the upper breathing pathway, the remaining toxins reach the most sensitive part of the body deep in the lungs, gases in ultra fine particulate that are inhaled, are much more potent than,

for example, food borne toxin. the technique shows that would smoke like until the diesel emissions harms the dna of our long cells. their muscle and a look here, every unit, like we view other environmental particles is named and it's clear we have an acute quicker fat vehicle. and there are different lung diseases we focus on them for the most extreme is lung cancer. younger faces and lung cancer is caused by compounds a damage the dna and the the, and that's exactly what we just showed how to even being with us for that for, for him to either get 5000 physicists and chemist at the university of roster are looking at what makes woods hope so toxic, they're testing the outside of their institute. since it's near the baltic sea, very clean air often sweeps through. but when the, when reverses, they regularly find wood oven emissions from residential areas. a new aerosol time,

a flight mass spectrometer quickly measures particles and a chemical makeup. the wood smoke is a poisonous cocktail of metals so and oxidized organic compounds. the high concentrations of poly cyclic aromatic hydrocarbons are especially alarming. like benzo pirates, which are known for their risk of lung cancer in cigarette smoke. what smoke is responsible for 90 percent of the poly cyclic aromatic hydrocarbons in germany too. i love them probably. but we have a problem that needs to be solved quickly. goes fine if we're not going to prohibit the stove, that we need flu, gas cleaning work, and we won't immediately start the most drastic measures. but we have to gradually improve and 1st get 90 percent in and then 95 percent and then even better filtering rates. but you have to actually start with and that can only be done by

law. worse of solution for cleaning the emissions already exist. x of frederick and his team developed of particle filtration system for environmental action, germany that reduces the amount of particles and smoke by 90 percent fireplaces are already available with an environmental label. he would like to expand the system and use a catalyst to cut emissions by 99 percent. although the german government knows about frederick system, ineffective solutions are preferred. chimneys are to be built higher so that smoke is distributed better in the air. thank. let's see, you've got what the government recently suggested dilutes the emissions and it's not a solution to you. we already did that in the seventy's odd to me. it's scandalous, it's not a solution. we need to reduce emissions. mature air quality in residential areas has been neglected for years because politicians have concentrated on vehicle

traffic. plans for the air quality and residential areas are now needed more than ever. that's all for this edition of tomorrow today. thanks for joining us. we'll see you again next time until then. stay curious. bye bye with ah, ah, with

who check in with us again in a city that you can visit over a get busy tourist site. nicole clearly shown by real inside how life is lived in prague.

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a journalist in a country like turkey. taking on the powers that be they risk everything. john don't dar? asks activists, journalists and politicians living in exile is too much on my shoulders. but i have to hold this weight because i'm responsible for the future fall country for the people who are behind the bus. they live for their mission. people need to know what is happening there in our series, guardians of truth, watch know on youtube, d, w, document 3 o. d w's talk show with strong opinion, clear positions, international perspectives, stuff like every week we get to the point on our current topic. but we just some we are currently with controversial commit it

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