tv The Travel Show BBC News January 8, 2023 11:45pm-12:00am GMT
11:45 pm
are powered by electricity. at the bo'ness and kinneil railway, engineers have also moved on from the past and into technologies of the future, where they are working towards cleaner rail travel. this is a little train that could be powered by hydrogen. the train itself is not new. instead, this is where old technology meets new and a test of where hydrogen power might be a viable option on our railways. the technology beneath my feet is relatively new for the railway but one of the interesting things about this project is that this train is actually quite old, built in 1979. it has been retrofitted to run on hydrogen. so, what was a class 314 headed for the scrapheap is now a class 614 hydrogen—powered train.
11:46 pm
the hydrogen is stored in tanks underneath the carriages along with the hydrogen fuel cell which converts the hydrogen back to electricity which powers the train. all that is emitted is steam and water. the hydrogen needed to power the train is made on site. electricity from renewable sources is used to split water, creating hydrogen. that is then compressed, compressed again, and then stored ready for refuelling the train. but if most of the uk rail network is electrified, what part will hydrogen play? some commentators say that hydrogen is actually a distraction and what we should be focusing on is fully electrifying our railway lines. if you have a route where you cannot do overhead electrification and the route is too long or there is not time to charge, then the hydrogen
11:47 pm
train fills that gap. you can get a range approaching diesel, you can refuel quickly and you can transport hydrogen multiple ways. so the hydrogen train fulfils some operational requirements you cannot meet with other approaches. it is not the only area of transport looking to use this element. aberdeen is a city built on oil and gas, but it is now home to the first hydrogen powered double—decker buses in the world. how does this work? what we have, watch your head, in total more than 25 kilograms of hydrogen. that will pump the hydrogen to the fuel cell here, it mixes with fresh air and then in the process, we end up getting electricity that comes out. this issent into a battery and from there, go to the battery controllerjust the same as an electric vehicle. ——this is sent into
11:48 pm
a battery and from there, go to the battery controllerjust the same as an electric vehicle. to get these clean and green buses up and running, hydrogen refuelling stations were set up around aberdeen. it's just like filling the bus with diesel. instead the pumps are stocked with hydrogen. when do you think diesel is consigned to the garages of history and the majority of your fleet are running on renewable products? five to ten years, definitely. certainly, as a group, we will not buy any diesel buses in the future, it will be electric or gas or hydrogen buses. thank you, driver. it is notjust buses looking to hydrogen as a fuel of the future. this is the first of its kind, zero emission hydrogen—electric hgv which runs off renewable electricity and like the hydrogen buses, water is its only waste. in the hgv sector, we're seeing hydrogen is the only technology that is able to give the long range, the heavy payloads and quick refuelling time.
11:49 pm
if you think about what we currently do, which is, we drive around with flammable liquid in our cars with small explosions going on around our knees and a tank of flammable liquid behind us, hydrogen is much safer because these tanks are very solid, they have triple layer carbon fibre reinforced. so there is a place for hydrogen in transport. if we continue at our current rate, scientists estimate our fossil fuels will be burned out by 2060. we know the way we travel must change and we can no longer rely on nonrenewable energy sources to fuel our way of life. with hydrogen and electric hybrids set to be the future, clean solutions are here to stay. that was laura. in my coat! i noticed that, actually. talking of clothing, we have spoken in the past about problems with fast fashion. these are clothes that are so cheap that they kind of feel disposable. we have seen new ways of being able
11:50 pm
to recycle fabric but this week we are taking a look at a problem that i for one didn't even know existed. luckily, shiona mccallum has found the solution. we know that fashion hurts the earth. more than 92 million tonnes of textile waste is created every year. recycling is possible but chemical dyes and prints often prevent this. if you are anything like me and buy merchandise every time you go to a gig, you may have loads of band t—shirts but sometimes your tastes do change and you are stuck with these logos forever. one team here in gothenburg are trying to change that. the idea is that they print the t—shirts, strip them back and reprint them so they can be used again, again and again. the start—up is not changing traditional fabric inks. instead, it has developed
11:51 pm
an invisible layer that goes onto the fabric first. made from entirely friendly ingredients. this can result allowing the top design to be removed. what is the tech that goes into creating this recipe? it is all about a balance and trying to find the sweet spot for both the functionality but as well as stability. we look at the charge of the component, we study the films that recreate through a microscope as well as the textiles that we are applying the print to. is there any waste product here? we create the volume for what we are trying. the mix is applied at an industrial partner where it is easily brought into the screen printing process. hello, welcome to sweden and gothenburg! i think you have a surprise in store for me?
11:52 pm
yes, i do. today we are going to print a click band t—shirt. i am excited to see how it works. let's get started. the final result is here. i love it. how could i ever want this to be removed? use it as long as possible and then remove it. just for you guys, i will take this t—shirt back to the lab and see if the technology can completely remove the logo. right now, this means putting the t—shirt in a bowl with the chemical. it is then treated at high—temperatures and left for about an hour. afterwards, there is a secret technique in getting the print to physically come off and it should get better as the recipe and the process is fine tuned.
11:53 pm
we have some traces left. the band logo has gone and i can only see a few speckles of pink. a pretty good job. i reckon you could print on top of that and you would not notice. this would be good for recycling? definitely good for recycling. which is the main point so it won't end up in landfill along with traditionally inked up garments. another test processed more precisely without the delays of us messing about and filming has come up even cleaner. you can get it more less completely off? we are 100% sure of that. wearers are not expected to strip their own t shirts at home. the t—shirt companies use our technology, people get to get the textile and then wwe take it back. then we take it back. with several large european partners already developing their own
11:54 pm
garments, there is clearly an appetite for closing this circle. with more than 100 million items made each year, it has never been more important to make all textiles recyclable. i did keep one of these just for my next gig, though. that is it for this look at some of the latest innovations that are hoping to tackle climate change. it will take much more than those to make a dent on rising global temperatures but when we see something that we think is promising, we will make sure you see it as well. thanks for watching, we will see you soon. bye— bye. hello there. it was a very unsettled start to the new year, wasn't it? yes, it was mild at times, but often very wet and windy.
11:55 pm
and if we look back at that first week and the rainfall totals across parts of north wales and the lake district for some just close to or in excess of 200 millimetres of rainfall fell. and in actualfact, there's more rain to come over the next five days. this is the rainfall accumulation. so, the darker the blues or the bright greens, we could have 50—80 millimetres of rain to add to those totals. low pressure, never too far away. and on monday, the low is sitting to the north, and that means a change of wind direction, more of a northwesterly, so a fresher feel to things as well. that northwesterly wind driving cooler air across the country. so, temperatures about where they should be for the time of year. but it does mean that parts of eastern scotland and eastern england, a chilly start, but some sunshine around. closest to the low is where we'll see the frequent rash of showers western scotland, northern ireland, northwest england and parts of wales. but the temperatures
11:56 pm
at around 6—9 degrees. we mightjust see double figures down into the southwest, but there's a change to come as we move into tuesday. yet more rain and wind, i'm afraid, but the south—westerly flow, so this sort of triangle shape, this pizza wedge that is milder air, it's what's known as a broad warm sector. all you basically need to know is it's a lot of low cloud, a lot of rain and windy with it, but the wind coming from the southwest, so it is going to feel milder once again on tuesday. gusts of winds 30—a0 miles an hour, strengthening even further before the day closes out in the far north of scotland. but the temperatures back up, seeing highs perhaps of 14 degrees by the middle of the afternoon. as that area of low pressure drifts its way eastwards, along the southern flank, we could see some severe gales for a time, but that clears away quite readily. so, as we move through wednesday, on the whole, the showers will pile in from the west, but it's going to be a case of sunny spells and scattered showers.
11:57 pm
still, the winds blustery, but not the gales that we have been seeing. temperatures generally around 7—ii degrees. what's in store for thursday? more of the same, i'm afraid. another set of weather fronts pushing in from the west. so, thursday morning will be dry and bright, quickly clouding over. rain arrives towards the second half of the day, some of it heavy the further west you are, and that will gradually push its way steadily eastwards. but northeast scotland perhaps staying driest and brightest for longest, top temperatures, again of around 13 degrees. the low then looks likely to centre itself to the north on friday. so, once again, the wind direction coming from a northwesterly or a westerly, so slightly cooler, still breezy, still most of the showers into the far northwest. so that means it's a greater chance in sheltered eastern areas of seeing some sunshine on friday. but again, those temperatures perhaps sitting single figures between 7—10 degrees on the whole. is there going to be much change as we move into the weekend? i'm afraid not. the low is going to stay with us and actually,
11:58 pm
notjust the weekend — further ahead, it looks likely that we are going to see showers or longer spells of rain. it does look likely it might stay that little bit fresher, though, over the weekend and into the early half of next week. but no signs of any significant dry weather, i'm afraid, to come. we will, of course, keep you updated.
12:00 am
welcome to newsday, reporting live from singapore, i'm karishma vaswani. the headlines.. thousands of supporters of brazil's former presidentjair bolsonaro storm the country's parliament — president lula condemns the protesters as fascist vandals. translation: we think - there was a lack of security. and i wanted to tell you that all of those people who did this will be found and punished. some protestors remain inside government buildings — we'll get the latest from our correspondent in brazil. also coming up on newsday.... prince harry says he never intended to hurt his father or brother by writing a memoir, and talks about his
94 Views
1 Favorite
IN COLLECTIONS
BBC NewsUploaded by TV Archive on
![](http://athena.archive.org/0.gif?kind=track_js&track_js_case=control&cache_bust=1824779112)