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tv   It Blows Both Ways  Deutsche Welle  October 1, 2022 1:02pm-2:01pm CEST

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on using our website, just go to d, w dot com. ah, will you become a criminal m? franklin may all ready know who's with him about hackers and paralyzing the tire societies? computers that outs where you and governments that go crazy for your data. we explain how these technologies work, how they can go a rules and for and that's how they can also go terribly. watch it now on youtube. how did she become adult hitler's favorite director?
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and how many become a forgotten filled pioneer? leaving he finished and unknown to fun. between hitler and hollywood. in 1932, they set out into the icy wilderness of greenland to create a life threatening a film project that became a major milestone in their lives. love, seduction and power. ice cold passion starts october 8th on d, w. ah ah, ah wind is the driving force behind our weather. it's part of what turns a sunny day into a stormy one. but climate change is altering wind patterns. given the vans winds will change as temperatures rise in stagnant and such. one in the united states.
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hurricanes are getting more powerful, devastating ever larger areas. whether disasters are also becoming more common in europe, in part because climate change is affecting the jet stream. strong winds 10 kilometers above the ground. the just seems like a guides is a high way for storms in the high altitude winds are affected by arctic temperatures. and recent developments are alarming mun, vice, do we know that when winds increased? so to extreme weather events fun extreme, but it doesn't once you on shifting wind patterns pose a threat. ah,
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wind is the motion of air triggered by differences in temperatures and air pressure . multiple studies have found the wind speeds of winter storms are getting faster. increasing by up to 5 percent in central europe. storms are also lasting, longer and wreaking more havoc than before. that effect is clearly observed in our forests. in the last 30 years, 17 percent of the protective canopy in european forests has disappeared. in part because of storms getting more powerful and causing extensive damage. like here and the eastern german state of mecklenburg, western pomeranian lycos shoots and motus johnson are looking at a group of confers trees in the wake of the storm heavy rains. and hurricane force winds from the atlantic snapped trees while knocking down and up routing others
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kind of the extreme summers are compounding the problem. the heat takes a toll on the trees, making them more vulnerable to insects. once the trunks are infested, they become brittle and more susceptible to storm damage. it's a vicious cycle. the fallen logs must be removed from the forest, or else they'll become breeding grounds for insects. dead wood cannot defend itself . so pests can easily eat into the bark and multiply healthy trees that aren't under heat stress can produce resin and bend off attacks. and he was the plot is clearly a jewel beetle with this cloud like pattern. in contrast, the longhorn beetle or edges are well defined different from the bark beetle, gonzalez's humble, classic example to refer yep. textbook was down here. that's jewel,
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be the larva. no, doc, this is an insect that will benefit from climate change because it loves heat and can locate weak damaged trees from about 20 kilometers away. no matter they're multiplying for marsh over climate change is triggering a dangerous chain reaction in our forests, the storm bearings and close it. ordinarily, this storm would create the ideal conditions for a pest infestation. because now there's all this breeding material for the insects, or at least there would be if we weren't here follows that we had a similar situation in october 2017 from saw with storm xavier and her back then there wasn't enough time to clean it up over by the net side in the spring, there was still some of this material left over on and then when the back bill was emerged around april and may they found the right temperatures and material to breed. you can imagine what happened against the fog of i lost them. in order to
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save the forests, storm debris must be removed quickly. but this requires more machinery and more personnel. in southwestern france, the winds sweep up the atlantic coast unimpeded workers in the town of su, locks to a man regularly clear sand off the streets. the sand must then be returned to the beach during winter storms. it plays a crucial protective roll when the waves crash relentlessly into the coast. the effect of rising sea levels can also be seen here. in 2014, a series of winter storms brought waves that were a meter high. this apartment block was in danger of being swallowed by the sea. since then, the town has installed artificial brake waters and raised the dikes. but that
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hasn't solve the problem. researchers believe that the top speeds of storms will be even higher here in the future. every spring, the regions coastal observatory, inspect the damage from the winter season. let's go there and set up a lie, a little bit of a tomato tow and his colleagues are installing their measuring equipment at the beach and b r it's they pair their base station to a satellite using gps. it measures the exact location of the device as well as its distance from sea level. same as your own. this is that escal engquist, the measurements have become necessary because our coastline changes drastically every year. just gotten likely to shift the threatening the coastline, and some spots are young. oh, i strong down new. filmy debra. these regular measurements a critical to track the changes and if they kept, our data provides
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a solid foundation for planning and risk management and endanger, stretches of coastline there. oh, can kind of this is your much out, i mean, as now just organized. mm hm. i off shore rocks, help protect the beach on this stretch of the coast. still, the potency of storms has long since been a problem. as has the rising sea level. during strong storms, sections of the cliffs simply break off. the beach is battered by 2 opposing forces. the wind carries the sand away, blowing it inland, and storm surges washed the sand toward the sea. the beaches are becoming shallower by several millimeters each year. slowly leveling out with the sea level. one idea what they don't get when we have
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a storm of to storm with heavy rainfall as we did recently in december from the army, we see major movements along the coastline. radical small. i think our sanitation that accelerates the ground movements even further. yes. at 1st, at the christian professor onto i know milan, ohio. okay, so i'm sure it's a combination of the sea, wind and rains that are all taking a toll and the basque coast or something. one of your me, thanks. but i will not back to charlotte. also back as the beaches become shallower, the sea has an easier time working its way deeper and deeper into the cliffs. the sandy coastline is in danger of disappearing. protecting it against future storms would cost billions. good the hood, okay, do they offices additional? so i think we'll have to come to terms which relocating houses and people and then more less the city of act on la lou under the moment. the legal and financial
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framework is lacking for such a solution. nazi haggling all day while met, one of the special men will saw me off yet in all curse them. one is becoming evident that living safely on the coast will only be possible if nature is given more leeway. but that means we have to retreat further off of, i think that's realistic. you auburn lost or stolen doll, jemila in at the potsdam institute for climate impact research. scientists are investigating how climate change impacts are, whether what is the relationship between extreme heat waves, relentless rainfall, and powerful storms, epi rou, seat and stuff on it. um stove are studying shifting wind patterns. now we have seen some changes, and actually what we have seen is very much dependent on the region and the season . so for example, for winter, we do see a strengthening of the storm tracks as facing over north western europe. in summer
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we see the opposite that we see a weakening of the storm tracks. given the vantage winds will change as temperatures rise and, and because the earth doesn't get warmer simultaneously, or uniformly everywhere, life may assist you either or. and the driving force for winds, a temperature differences between different regions, fission for sheet, and of a yawn on to a fungi is good. it's quite clear that wind conditions will also change due to global warming on the south. and this will of course, impact people off dimension. the driving force for our weather operates at about 10000 meters above the ground. high altitude wind is created when warm air masses flow from the equator to the colder north. the earth's rotation directs these air masses around the globe from west to east of 1st, when band is formed near the sub tropics. a 2nd stronger band forms around the 60
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of parallel. it draws its power from the temperature difference between warm air from the south and cold air from the north pole. this north polar jet stream drives low and high pressure areas across our latitudes. but researchers have discovered that the jet stream is slowing down. they are decree, jones have been warming fast there in low level, so near the surface of the earth compared to the rest of the globe. so rapidly these means that this temperature gradient, so the differences of temperature between the poles and the quatre becomes smaller compared to that, asked to the normal. and when we have smaller differences, these would mean we care winks and the weaker that streams the arctic. it's become 3 degrees warmer just the last 50 years. that's a far swifter paste than the rest of the planet. since the start of industrialization, earth's temperature has risen about $1.00 degrees on spits,
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begun meteorologist mario my to really of the alfred megan institute is researching what's leading to the accelerated warming and what effects it's happening. she also coordinates all the scientific work being conducted here. the joint french german station div fortune in research in the arctic has become more important to keep in part because climate change is more pronounced in the arctic than in other regions of the world. it and t and t and alison's. it's possible to measure and document the effects of warming in different areas as well as study the individual processes to document t unaltered insulin and pilots as a to it doesn't. no addison in western spits bergen is the world's northernmost settlement. it's an important place for climate research. 11 nations have research facilities here. the french german bases observatory has many different instruments . matter really has already documented the 1st consequences of the rising
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temperatures. and there's another in vinto in the winter months, especially the air cons to coming more frequently from the south. austin, there is now more warm and humid air coming from the mid latitudes cousin mitzy. this impacts precipitation. and the clouds that form here. it's also altering the local climate which is concerning the kima. here for aught on this is, is auctions of it. i'll fill the balloon with gas as observatory, engineer, speaker gotta helps with various studies at the arctic station. every day at 12 p. m, she launches a balloon with a probe that sends back weather data. much really uses the data to determine how rising arctic temperatures affect the jet stream. to gain a comprehensive understanding of the effects of global warming at various altitudes,
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balloons are launched simultaneously from different locations around the world. they fly up to 30 kilometers high before their rubber bursts from mine. and miss holmes and vizier, crucial from my research. it is, it's the only way to get measurements. 30 kilometers off on and the height resolution is very high as well as a deb, i don't like the balloon rise is 5 meters per 2nd and take some measurement every 2nd fish. we get a reading every 5 meters, other devices can't do that. and great to him. my to release measurements clearly show that the jet stream has changed. oh, changes to wind patterns inevitably impact earth's living beings in a forest near the village of cheese, a lies one of the most important bird research centers in france. ah v vi. miss kish regularly sets off
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from here on expeditions to the planet's most remote regions. for years he's been going to the cause a islands off the coast event, arctica to study albatrosses at a breeding colony where they raised their offspring in 2012. he made a discovery one and he's only doing the i don't think after analyzing the long term data, which we've collected over 20 years of observing these birds. we noticed changes in the movement, patterns of albatrosses course or cold at all. we also noticed the birds were having more success, reproducing all, don't get those, you know, put, even the average weight of the birds had changed depending on average, the adult birds weight about one kilogram more than 2 decades prior, even though they hadn't increased in size, the population of albatrosses in the breeding colony also changed with more check,
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surviving each year. the researchers only discovered the reason for these developments after analyzing the regions, whether data from the past 20 years. of it se dba lafelle. the change in wind conditions is why it has deval at them. we could prove that the flight speed of the albatrosses had increased and i know what i showed them off as you to the higher wind speeds. the birds flew significantly fast us is us at them and their weight increased to do again you, they suspended less energy foraging because they found the same amount of food in less time. that's why they gained weight. the albatross is benefited from a westerly wind flow that had shifted further toward the south pole due to rising temperatures. it was a chance discovery that proved for the 1st time how profoundly changing winds affect life on earth. or that
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you ye off at the us to think of it until then. the impact of climate change on animal behavior was completely underestimated. called dr. morgan than an email with the fact that it could change the speed of an animal species movement. especially surprised us players short on all icky did not on the drastic effects of changing wind patterns are already being felt by german farmers. the interaction between rainy and dry phases has become more erratic. farmers have to increasingly deal with crop failures. pharma yon bitten bag. now relies on plants that can cope with freak weather events. the lupina had an osgood site as wide open, has excellent root grocer, 5 or so they're showing it stretches downward with a top root and can unlock water reserves that allude other plants, plants in for bar. i'm glad i was, i deem it also helps improve the cell structure and so that other plants contrived
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to and then that all poisoned. oh good. so they come on in, their tod was, in fact last year, which was a 2nd extremely dry year loop and give us top eels despite it being so dry that a block and all the others, especially the grain essentially failed fire. and you could either arden's in fast as the climate change has long since arrived in the heart of europe. but for farmers who still doubted that fat, the heat wave in the summer of 2018, opened their eyes to the harsh reality. wind didn't drive rain clouds over their fields for weeks. this got young. yeah. you are the people we've been discussing climate issues and the advent of extreme weather events for a long time. what is god? yeah, and unfortunately there were still people who didn't want to believe it or explored us, but i think that was a wake up call for everyone. think that the situation was getting worse. that's meant that weather conditions had changed and we had to adapt on styles. i and the
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vision yon bitten bag in lower saxony already began adjusting to these changes years ago. lou gave all the math. i haven't plowed for over 20 years because i convinced that no, til farming is better for the soil, the plants and the system the same as the current battery. so for lighting x, it can manage extreme rainfall, better with ground infiltration into caea water controller down through those vertical corridors. sinking deep into the soil, and indy t for in, in borden. i'm putting on some and we don't experience as much erosion for wind and water mixed up transports yet a calm while the looping has just been sown, the rape seed fields are in full bloom. bitten bags. goal is to extend the harvest as long as possible. the missive has organized and so we have to try to adapt to another. that means we may have to adjust a crop rotations to cultivate other crops. and most importantly,
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cultivate many different types of crops. was our van on dime it we must increase diversity so that we spread the risk, the highest, the risk was lowered when diversity is greater. if you fired growth, other are extreme summers in germany. a result of changes in the arctic morgan, my to really is seeking the answers to that question on spits back. where the weather is much too good for researchers liking. in past september's, it was often above 0 degrees celsius 2. but the difference in the past was that the fjord was rarely completely free of ice. those times are now over. even in winter, it no longer freezes over mutter really and her team are on their way to another measuring station. here the scientists filter and analyzed particles driven in by the wind air pollutants show us just how connected when systems are
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around the world as filled a few fish. what so we measure pollutants here that the wind has carried a great distances yet foot feet, omitting vint now truly fits in this illusion from industrial regions in or even from siberian forest. fires reach the arctic and can be measured here on this here miss. bah, ah, the next stop is a glacier on the bays eastern shore. this is where the ice and the fury comes from . but it's continuing to break away. the glaciers on land are also retreating. as a result, the sea levels rising, but compared to the south pole, the masses of glacial ice here at the north pole are small matter, really considers the disappearance of the ice cover on the oceans to be even more serious. and thus may i ask when sea ice retreats and covers less of the ocean, it exposes more of the water's surface. the other that means less,
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some light is reflected, but simply because there's no white surface to do. so if monday don't, instead you have the dark water surface absorbing the heat and further warming, the ocean atmosphere, system theatre. that's a feedback loop, but called also the exposed war to surface is conducive to more evaporation into the atmosphere. for me, that means the atmosphere becomes more humid and wumer over always, that impacts cloud formation among other things. and there again is that feedback loop. so the climate gets warmer. victor with us the key moses, i found yet another reason the arctic is getting warmer but doesn't really affect the jet stream at the alpha at vega institute and pottstown climate scientists are processing the data from the arctic and creating models they're calculating if what's happening there is accelerating climate change?
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meteorologist dirty handoff also studies the sea ice and the arctic by analyzing satellite photos. just us me eyes we can see from these curves that the sea ice is decreasing relatively continuously. un deason calden than via d. if we look at individual years through the lens of any given month eisen yaga fetus. so here for example, the values in september men, we see that the sea ice is decreasing since the late 19 seventy's side. and it does seem to go yahoo! and this negative trend is about 13 percent per decade. mafia em, i'd some good st. paul decorum without sea ice in the north pole region. the arctic continues to warm at a much faster pace due to handoff has factored this trend into climate models and is studying what that means for the jet stream. the hum good site does. we've shown
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that reductions in arctic sea ice cover can impact the jet stream, clean, con and india that so in less, less c i say cover thing. the jet stream weakens in light, winter dead jets, and blocking weather patterns can occur more frequently of keianna that the long often blocking weather patterns occur because the slowed down jet stream is no longer flowing as tightly around the earth. it's loops increase in size and come to a standstill. as a result, high pressure or low pressure areas remain over a region for longer than usual. the red, high and blue low pressure areas are not alternating as they once did, which can result in extreme weather events. such fluctuate sions and the jet stream have always existed. but the pot, some researchers have proven that climate change can trigger them with catastrophic
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consequences. i skipped and guns clang. it's as i'm hung fishing, there's a very clear connection between the jet stream and extreme weather events. whitfield, i and for example, there's sometimes a phenomenon where very strong lube star vibrations in the jet stream, from north to south in fun stop on the spot, even the done often. and that results in long lasting weather situations long and heightened and, and depending on what that situation is the best if it's rain for example, and he can lead to flooding one on to of and, and if it's a high pressure system overhead he can lead to heat waves and drought, so it's event on to talking hyde fuel. we don't know yet whether those am weeks phases of their estates of the dead stream are becoming more frequent or different . however, what we can say is that even small changes in the dead stream, even if it is a little weaker in summer, for example, could bring and disproportionate an impact on the surface and an extremely weather
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changes in wind patterns are one catalyst of extreme heat waves and devastating droughts like those we saw in the summers of 20182019 high pressure systems stuck in the weakening jet stream. when low pressure areas are trapped in the jet stream, it can lead to steady and heavy rainfall. as was the case with the flooding does faster in germany's eiffel mountains in 2021. but when is a single weather event directly linked to climate change? in potsdam, at the german meteorological service, rank high and comp calculates these correlations. this new branch of science is called attribution research. the woodson, even a climate models, we 1st stimulate the situation as it is now. this was the reality of where we are as humans, and the changes we've brought about on the new mask that we take the same climate model and simulated as if humans had 0 influencing frisco. in other words,
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that need or greenhouse gases, no land use had changed somebody by and, and when we compared the results of the 2 models, we either see a change or we don't in kind of the 2021 flooding disaster in germany that resulted from heavy and continuous rainfall was one of the year's most severe weather events . attribution researchers used their comparative models to assess the incident. the chemo hot climate change played a role in the events that triggered the flash flooding in the r valley and aft river. he was on the cut, it increased to probability by a factor of $1.00 to point $2.00 to $9.00 compared to pre industrial times. but see, that's why we can't give an exact number because the information is not the precise one, but you can draw an example from its actor. and currently this occurs every 400 years . and if we take a number between 1.2 to 9, namely the number 5, it would have occurred if he 2000 years if it weren't for climate change. princeton university and the us state of new jersey is one of the world's most prestigious
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research institutions. when it comes to understanding climate change, professor tom newson and his research group investigate hurricanes and how climate change is altering them. he also studies the consequences where people living in regions where hurricanes occur more frequently we're expecting the hurricanes are going to be more intense as the climate continues to warm. if not a huge effect. the size of that effect of something like 3 percent. now that 3 percent, ah, in wind speed, ah implies a greater percentage increase in damage by the way, because we think a damage from hurricanes goes up just linearly with wind speed but, but perhaps the as the 3rd power of the wind speeds or that really may indicate something or like a 10 percent increase in wind damage potential. ah new
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orleans in the state of louisiana. the debris lining the streets and the blue tarps are signs of a recent hurricane. exactly 16 years after katrina destroyed large parts of the city. another hurricane reeked havoc here. ida, a category for hurricane the 2nd highest designation, swept through the city at about 240 kilometers per hour. repairing the damage is a daunting task. ah, for d'artagnan stovall, august 29th 2021 marks the day he lost his home. he since moved in with his brother it's difficult to stay in here, look at it. and now they have so many memories. the much work that i did on the house of a family had been here since 1978. so it's been while
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as through as the only word i didn't really find to describe any of it. as you look at the other houses you think maybe i have some roof damage? oh, so funny bank just my house fell. this is, this is unbelievable. the storm reached louisiana on the morning of august 29th. meteorologists warned the danger, but evacuation was out of the question for many residents, including d'artagnan stovall. he remained at home, hoping the storm would pass. he was upstairs when the wind hit his house, tearing it apart at the seams. he had to escape from the rubble. i'm up in the air with a lot of it because i'm deciding if i stay in wallace,
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the entire process of her attain preparedness and gonna hunker and down are decided to go somewhere else. and they seem to be occurring more often. and like this was the anniversary of katrina, the 16th anniversary and you just get tired of the process even when you don't get hit by the the prep to deal with it. louisiana got hit with the full force of ida. but experts think hurricanes will be even more destructive in the future. another effect that we're expecting out of hurricanes is an increase in the rainfall rates, because of warmer atmosphere holds more water vapor typically. so these hurricanes that are happening in this large scale environment where there's more water vapor in the hurricanes are converging this water vapor in toward the storm. so we expect that to be about 7 percent increase in rainfall rates for every one degree celsius rise in the sea surface temperatures. hurricane ida is seen as
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the filling the prophecy of climate change. the storm moved along the east coast of the united states, bringing relentless rainfall more than 90 people died in lambert vill, new jersey the rain caused a stream to burst its banks, transforming it into a raging torrent. the waters pushed the house of the separate low family off its foundation. the family of 4 had evacuated thanks to a storm warning to my left would be the children's room. my my, my daughter and my son would, would have been their rooms are right here. that's where the water 1st came and hit and i pushed everything out from of the ground floor. we had a large hardwood floor and it, it buckled into
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a v. and once the water came into the house, it pushed everything right out of there and right down the creek. the separate rulers house has since been demolished. their neighbor's house was also unsalvageable. officials won't allow them to rebuild because the chance of a similar disaster is too high. the dangers of heavy rains brought on by future hurricanes or increasing the propagation speak of tropical storms and hurricanes over the us. land regions has decreased since 1900 when storms slow down, that means they're going to spend more time over in a given region. so a storm, it's going more slowly. you're going to have a greater accumulated rainfall in a region which leads again to a more flood risk. the european organization for the exploitation of
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meteorological satellites in darmstadt, european whether services get their data from its satellites, which are a key source for monitoring whether palo rooty is the facilities chief scientist. he's working to improve forecasting, but his employees have only been able to measure the wind and space indirectly. we get very detailed informations on the infrared and visible channels, and we derive these information. we have different clouds at the for high. and so we did to mind the movements of the clouds and from the movements of the cloud we've, for the wind vectors. it's important because it gives to the model the capacity to well positioned, the storms and to well position the dynamics of the storm. so they move towards a certain part of the continent. so far, satellite observations have revealed little about the jet stream. but
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a new measuring system is set to change that it's already being tested in space so that researchers can clean how high altitude wind influences the weather on earth. what these up into the surface and what is up and into to the thick thank you know, meters high are really extremely important to understand than to predict those systems. so are, those are the areas where we would like to have more and more observations. and we have now kind of prototype who is already flying, which is called a little sir. one of the goal of wind. so, and is already giving has the possibility to understand these systems the european space agency develop the satellite and it's when measurement system a u. v laser scans, the area between the satellite and the earth's surface. it uses the reflection of
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molecules beneath it to measure their speed. the satellite has been orbiting the earth since 2018 at the light in its institute for troposphere research in leipzig, holger boss, and sebastian bly, regularly check the data from the a all the satellite that these are last week's measurements. can all yes i you guys decide within commission if it's measurements become available about 3 hours after he oldest passes over any given region on industry that i say. each of these rectangles represents a wind measurement taken by alice and alice measures about 30 kilometers from the ground up or visit. we can see blue colors and yellowish red colors. what you can see here on the scale, in this example, red colors show easily wind and blue colors. show westerly wind is it is darker rectangles indicate stronger wind. that dark blue strip represents the jet stream
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and its nets. and it is a bit of color variation that visualized here quite nicely. beautiful. well, that's because there's a lot of turbulence. so it's difficult to take precise ground measurements from space aquatic missiles. so much of a show mammography. let's see what the radio sound measure to miss, not every friday, the satellite flies overlaps each. then the researchers launch a weather balloon outfitted with a measuring probe. how high up did it measure? i think missing the radio sound was 24 kilometers high. okay, good. and then it covered the entire altitude from the alias measurement effect. exactly. the balloon probe in leipzig may take more precise measurements than a olis, but only the satellite can provide comprehensive data on the jet stream. illness miss dale, this measures with a precision of 5 to 8 meters per 2nd in cloud free areas. and even if you know, you'll get a random error or in precision within those parameters, and that's perfectly fine for use and whether models in the bottom, wooden, the german meteor, a logical service. and often back here, scientists review
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a all this data from space and translated into weather forecasts. this is where alexander class 1st gained direct access to data about the jet stream . i good little cindy and i, we use a all this in our global model in the jet stream drives the high and low precious systems on earth, especially in the northern hemisphere on the bed. oh, we can predict the path of the jet stream is the better we can predict the path of low and high pressure systems. even for his audience. if the jet stream slows down, there could be a cluster of extreme weather events. this data should help better predict disasters in the future, allowing authorities to order a vacuum patients earlier. this isn't also schmidt, lation thing. it's
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a big advantage to have comprehensive wind observations that we didn't have before . but the, let's take the last flight catastrophe. for example, home in india, next such events will increasingly affect us in the next 10 or 20 years via 1000 and the better and more accurately we can measure the winds over the atlantic or the pacific. and so yeah, the sooner we'll be able to predict them and warn people like myself who has our own when von b lloyd to them, but merely predicting the weather conditions brought on by the changing winds is not enough. we also need to adapt in lower saxony. a long dry spell is battering the fields of organic farmer, yon written back his lupin's aren't getting enough rain in the late summer. do you know the anti and escort these here are actually good and he's 3. and the other 3 haven't fully matured is for your lack of water and makes things difficult for all places. for light. next the loop and handles, it's like a pro,
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but yield less. i don't see it. it's still a good product. oh, the market. if you remove the little ones, you'll still get full beautiful grains and it's good quality and suitable as food. but there's less of it. that's how it is the guy that nature cuts back when one factor becomes scarce. lewis, and in this case it's water yet been i in fact, ok now put, he isn't as lava, lupins, or just one of 10 crops yon bitten bag is harvesting this year. he already harvested a great portion of his fields before the dry spell began. in general, he opposes irrigating fields, that quote, to one of the there, they'll question that some crops need targeted irrigation. but i think it's fundamentally wrong to react to this increasing water shortage by pumping in water, artificially couldn't sleep. so yeah, and hiding ones that make up high edge, why does that dinah congo, and that leads to competition between drinking water and irrigation in water, the cold water that nature doubtfully needs to weigh x, y,
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z loss. while we can't solve these problems by ramping up irrigation isn't a name shuttle only treat the symptoms in the short term. will need to look for long term solutions and work with nature. emerson, by the end of her life, i think so a home or intermittent to what's as i'm mom, i'm back on spits bergen, b gotta and mark on my to really are headed to a field outside the new allison's research settlement there, studying a piece of land that was previously iced over all year round. yes, i'm from september now in early september. the ground has thought out everywhere. it's very, and even though i, as the impulse, every stretch of ground is a little bit different and isn't us once a month fee gotta hammers down these poles into what's called permafrost, to assess how much it's going to open up the can you check as opposed still
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moving forward here, if not moving any more if the alpha, the depth is 95 centimeters, an ice on the temperature is we'd expect more of uh, but as i mentioned, the ground here is very uneven. so it varies greatly. yeah. establishing that unless you don't keep the stuff you don't think that's why it's important that we measure at 12 different spots and always measure the same exact whole. so we know very precisely how each specific whole changes. thicker also has to swap out a filter that collects the c o 2 released by the thawed soil. seen them was and i've seen
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a filter in the tube that stores the seo to coming out of the soil. i had, though scientists can analyze what kind of c o 2 it is, and whether it's c o 2 that's been released by plants that are growing here. now, why that are fresh in the soil, or whether it's c o 2 that's been released by the soil itself is in other words, bonds, very old, organic material that's been in the soil for many years and is now being released due to the warming. oh, hike that's to them con. the thawing of the soil further drives climate change. as and i was told their exchanges between the soil and the atmosphere, partly of gases and partly of heat and moisture flowers. and that in turn has an impact on the climate and the process is that reflected in this coupled system between the atmosphere and the soil was fee of a $1.00. wouldn't it actually climate change has altered the wind and the altered wind continues to drive arctic warming,
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glaciers and sea ice are retreating. the jet stream is more often sluggish as a result. heat waves that lead to crop failures and parched forests are becoming more likely. as are devastating heavy rainfalls, but there is still time to act is in jobs. so look, mission that off and get these. luckily we're no longer dependent on burning material to generate electricity. and us can them, if we can generate electricity with photovoltaics and wind down vamp, or we don't need to burn material for heating either them induct. so once we have heat pumps here, and we have induction stoves for cooking factor. so the key factor is to get out of fossil fuels quickly and use these alternatives either not even in again, our notes for d to meet the power of targets of one to point 5 and to the grease. we have to go one step further for this type of to reduce the concentration of greenhouse gases. we have to take them out of the atmosphere, skilled cl ah,
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one way to remove greenhouse gases from the atmosphere is to increase the amount of forest area worldwide. motus johnson and hypo schultz from the mecklenburg western pomeranian state forest are doing reforestation work at a former conservation area near sh vaccine. if the vehicle added more in the process of forming an u tree population here among the we're doing it now with hardwood, but particularly our colleagues are in the process of planting red oak because we want to establish a population that's better equipped to handle dry summers and ongoing periods of drought already no longer relying on spruce is and certainly not a monet. coaches were developing a mixed forest of us as young law, bush, 5 inch the invoice or a lot of everything going to plan would be a good planting material. oh, all right, so okay, okay. well,
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re forcing this area will take a lot of time work and money. it will be decades before the targeted logging of individual trees becomes profitable. the bomb odd you we don't know what the tree species of the future will big bomb there is certainly tree species we expect to have better characteristics than others to withstand these changing environmental conditions like droughts in summer time dr. periods, extreme heat, as strategies to bed on a variety of trees, spread the risk and bring in different trees, species and was physical, social and fashionable mon sibling. this single reforestation project won't increase the global forest area. now it's about repairing damage, which is also urgently needed to address climate change. but it's no easy task. vesee, aka, if you look at the current climate models and projections which look very blake in parts you really worry about which tree species will survive in the future or how
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al forest to look in 2100 or whether it's just a matter of preserving them somehow and storing c o 2 food off perhaps the economy will take a backseat hoping that could happen by jonathan village, often logical douglas, which is kind of to the son that the college war institute of technology researchers are looking for a way not only to remove greenhouse gases from the atmosphere, but harnessed them all on did maia and his team are working with a variety of companies? this system from a swiss company sucks in air and passes it through a filter of these new filter sits in chemical molecules in this filter. can't bond with the c o 2 in the air and with the water vapor was out of the in other words, these 2 components are separated from the air and also looked at some point. this filter is fully loaded and sort of locks it stores if both front and back long up
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front of him. when then they collect the heats up, which causes the c o 2, and the water vapor to come down from the filter and be extracted funding filter. then the water is condensed and you have pure c o. 2. also none of mothers go, i know seals why carbon monoxide is isolated from the c o 2 and enriched with hydrogen. the mixture contains high levels of carbon, which is the basis for combustion fuels. c, o 2 from the atmosphere is to replace oil gas and cole. i need you cruised is the real odd here is to achieve high energy efficiency during the conversion. i'd, like i said, we put in renewable electricity and produce energy sources, which of course contain certain amount of energy and the rest is lost. so lost on. but if you can effectively into linked the individual steps of the process and then you can achieve high energy efficiency. and if it's inside the system here function
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similarly to energy crops. the idea is to filter c o 2 from the air and replace fossil fuels, climate neutrally. so far, however, these technologies have been extremely costly. it's loaded. does image hold it woof. it's if i believe that this method is indispensable for combating climate change. i'm been going good. we have no real alternatives to kerosene for sudden applications, such as long distance air travel. when, when is this killed at the end of the day, if i synthesized the kerosene using c o 2 from the air and renewable electricity low, then i basically have a cycle for this with the, when it's burned it of course create c o. 2 in the atmosphere again, but because i've extracted my c o 2 from the atmosphere with renewable electricity, it keeps the cycle going on behind system. on his fields and lower saxony,
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organic farmer yawn. bitten back has been practicing agriculture that protects the soil environment and climate for years. he also factors in the changing wind conditions by making use of trees, crowded by his own, written back with a window like this. you can imagine that a row of trees can serve as a wind breaker, shown all guns go handy when there's a drought asleep on. the soil doesn't just fly away. the trees help prevent wind erosion and this is yahoo! as the boy, the trees also draws water and nutrients from greater depths to disperse for their fruits and foliage loud. this also generates humus. and of course the field can benefit from that in the long term plan with the aca out of one of the dea. this kind of integrated agriculture is called agro forestry, meaning bitten bag designates parts of his cultivated land to the trees. when he had the right, we wanted to plant 3 big linden trees here on vehicle. and with this we want to
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give a signal to the states about this combination of trees feels grassland homes drive on aka, on green light, mahonnan diesel dell stand exactly on the border between grouse land on one side via which has been newly developed and former arable land under arable land, on the other 2 russian. yon wittenberg is a pioneer. he's long since adapted his farming to the new conditions brought about by rising temperatures and the changing jet stream. just carrying on with business as usual, was never an option for him in his ian, we're seeing what we've sewn, by altering the climates vice versa. and when was reckoned with the consequences as well today of our mitten fall, that means we ourselves have to change has to be a mission on. so we of course have to put enormous effort into ensuring we don't to change the climate even further and outside of your home. you know, we have already created these conditions. so it's up to us and nature to adopt was
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on the for that we need to you ideas la vega, if there's no use traveling down the same roads, we've always gone down hoping fate will somehow intervene. district i'm have changes to the jet stream have become a dangerous driver of climate change. and their driver is the greenhouse gases that we, as humans keep producing, ah ah, with
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ah, who, when i, when you work as an architect, i go all in or not at all. women in architecture. why are they so invisible to the larger public?
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we decided to ask them versus i was, what is the poetry the secret of a house i'm housed? shattering the glass ceiling women in architecture in 15 minutes on d. w. o. in a globalized world, where everything is connected only takes is a sport to set things in motion. local hero show how their ideas can change the world with global 3000. on d, w. are you ready to get a little more extreme? ah, these places in europe are smashing all the records, stepped into
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a bold adventure. just don't lose your grip. it's the treasure map for modern globetrotters, discover some of europe's wykard breaking sites on you tube and know also in book form. ah i am the rain forest. i watched them grow up here. they've left, but they've always come back. yes, they always come back for my trees. there would my plans, their medicines. for my beauty, their escape. ah,
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i've always been there. and i have been more than sometimes if i gave it all now, gone for ever. but humans are so smart, so smart, such big brains and opposable thumbs. they know how to make things amazing things. now why would they need an old forest like me any junk trees? well, they do breathe air and i make air. have they sold on shoes? so smart bill figured out, schumann,
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making air. that'll be fun to watch. ah ah, this is dw news live from berlin. russia is annexation of for region in crane has not deterred the advance of keith's forces. it created officials say their soldiers have encircled thousands of russian troops in an eastern city within striking distance.

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