this is bbc news, the headlines: world leaders at the climate summit in glasgow have agreed to end deforestation by 2030. around 100 countries are signing up to the pledge, including brazil, canada, russia and indonesia which is the largest exporter of palm oil, which has led to a dramatic removal of forestry in the country. it follows an opening day in which india's prime minister, narendra modi, told the conference that his country aims to become carbon neutral by the year 2070. it's the first time that india, which is the world's fourth biggest emitter of carbon dioxide, has announced a net zero target. emergency teams in nigeria are working through the night to find dozens of people who are feared trapped in the rubble of a collapsed apartment block in lagos. the building was under construction at the time.

the driver of one of two trains involved in a collision on sunday night near salisbury, in wiltshire, has suffered injuries believed to be life—changing. an investigation is underway into the cause of the crash, in which several other people were hurt. the collision happened at fisherton tunnel in salisbury, around 7 �*clock in the evening. the line will remain closed for the next three days, affecting services linking cardiff and bristol, with the south coast. jon kay, has the latest, and a warning, his report contains some flashing images. questions tonight at the fisherton tunnel. these two trains were travelling into salisbury in the same direction, but somehow collided and ended up side by side. cameron was on board,

heading from a halloween party, about to get off when suddenly... this most awful noise, which i now know was the two trains hitting each other, violently being thrown about as my train started going at an angle, there was this huge whoosh of fire and sparks, it's quite scary, seeing people with blood on theirface, masks and clothes, we are in darkness, and there is just panic. through the window, cameron took this picture of the other train, crashed alongside. is that wait like? so you are waiting in the dark, what is that wait like? time stretches out and out and out and it was only when we heard someone had spotted the blue lights on the bridge that's not far from the tunnel that there was any idea that help was coming. to start with it was thought the great western railway�*s train had derailed after hitting something

in the tunnel. the second south—western train had then crashed into it. but this evening british transport police said they have not found any evidence that the first train struck an object. this is now a major investigation. there were almost 100 people on board the two trains, around 30 of them were treated minor injuries. unfortunately, the driver of the train was more seriously injured, and his injuries are believed to be life changing. he remains in hospital in a stable condition this morning. investigators are trying to establish whether the driver of the first train managed to press the alarm to warn other trains through the signalling system. when you see pictures of the scene in daylight, now, what do you make of what happened? i think daylight brings about the seriousness of the situation. it kind of reinforces just like, we kind of got really

lucky in that this wasn't something so much worse. it could be days before the tunnel entrance is cleared, and services can resume. now on bbc news, it's time for the travel show. coming up on this week's programme — we're talking shop in paris as one of the city's most famous department stores celebrates its belated 150th birthday. it's big, it's really big. the underground railroad that had no stations and no trains, but helped thousands of enslaved african—americans escape to freedom in canada. i love that term, �*freedom seekers�* because had they not sought freedom, who knows where we would've been to this day? and i head for the hebrides to get my first—ever glimpse of a galaxy over 20—million light years away. i thought that was a galaxy because it looks like the opening credits of a sci—fi movie. but that is so cool. hello, and welcome to

the travel show with me, ade adepitan, coming to you this week from a lockdown—free london, where the city's world—famous shops are slowly starting to fill up again. and over in paris it's pretty much the same story, especially for one iconic department store that's celebrating not only opening its doors again but also 150 years of being in business. we sent emeline nsingi nkosi over to do a little bit

of window shopping. lovely! paris is a second home to me. last time i was here, the streets were empty and shops were boarded up. today, it feels great to see things returning back to normal, even though some restrictions are still in place. but i'm notjust here to drink coffee, i'm here to shop, and where better to do it than here? new york has its macy's, london its has harrods, and paris. well, paris has la samaritaine. a new and improved version of this paris has iconic department store re—opened injune last year after a long 16—year closure. so, here it is. la samaritaine. each of three sections representing a different moment in time and, actually, it started as a small store just over there. and now look at it!

despite its humble beginnings, la samaritaine soon became one of the most well—known department stores in paris. it was a place to see and be seen. the shop where you could supposedly find everything. founded in 1870, the art nouveau building came first. the 19th century was a time of big change in paris, and la samaritaine symbolised that change, but its ornate features soon became outdated. a few decades later, an art deco building was constructed next door, in an effort to lure in the next generation of shoppers. and it worked. with the help of its quirky advertising, the store flourished.

at its peak, employing over 3000 parisians. but, as times and tastes change, the shop's popularity dwindled. safety concerns and high maintenance costs meant that, in 2005, la samaritaine had to close its doors. many thought that was it for the store until luxury fashion brand lvmh stepped in with the help of 750 million euros. for parisian people, la samaritaine is notjust a building or a department store. when we are reopening this building, all of the parisian people came to visit, especially the building — the department store for the store, for the retail also, but, for us, it was for the — for the architecture. the building was completely gutted. some original features were discovered when stripping back the layers that used to cover the art nouveau interior when it went out of fashion.

specialist craftspeople were tracked down from across france for thejob. the result is breathtaking. wow. it's big, really big. this is great to see. i mean, it's heaving with people and you... you can just see that they're not obviouslyjust here to shop and eat because they're walking around taking pictures of the structure. yeah. how hard was it to redo?

from this level, you can see every details of the art nouveau period and architecture. you can see the stairs there, the historic stair with the detail of the handrail, refurbished exactly the same design and the same kind of detail by the artisan. and you can see also a famous fresque, 50 years ago in the 1960. you didn't see this fresque because this fresque was totally covered by the white painting. but it has been far from a smooth ride. a brand—new building on rue de la monnaie struggle for years to get planning permission with opponents saying the modern facade didn't fit in with the architecture of the area. wow, right here you can really get a sense of where the older building, that i know and love, meets this new, more modern development. personally, i have a real soft

spot for the older one. we are very careful to keep the dna that was really given by the ernest and marie—louise, the founders. first, they were real innovators and they were innovators in terms of, for example, architecture. because now you have the art nouveau and the art deco. right now it seems traditional but, at that time, it was really revolutionary for them. and we did the same thing, a little bit, with the levallois facade. you know, we asked the son of architect to do this very contemporary facade. and that, you know, we prolong the tradition of innovation from ourfunders. the store has reinvented itself as a day tripper destination with 600 brands, several restaurants, and even a luxury hotel. it's something to see. and before, it was just part of our lives, we don't see

it, you know? we go into la samaritaine, we didn't take the time to admire. now, we stop and we look and we gawk. i really like these cherries. this definitely reminds me of being a child. but with the rise of online shopping, fuelled by the pandemic, is there still a place for the department store? 16 years have passed, and we have to build some return for the next 30 years, so, i mean, we adapted to the changing habits, the changing clients that became much more sophisticated, demanding, expecting, you know, an experience, to really offer something different that you cannot find online. the decoration aspect is really important. and then also all the

experience that you have. you have a lot of light, you know, it's really nice walking around. and a lot of surprises scattered in the store. there are many different things that you cannot do online. this hat is absolutely gorgeous, look at that colour! ah, 0k, doesn't fit, which is a shame because i have always wanted to be a hat lady. ah, 0k! a velvet beret. as they say, "when in paris..." super cute, but the price? yeah, sadly not for today. stay right there, looking beautiful. la samaritaine has been in business for over 150 years, and it's come a long way since then. and while you might not be able to buy everything here any more, visiting is an experience in itself, and it sure feels

good to be back. stay with us because still to come on the travel show, we're off to america to meet the people from chicago who are learning more about the part their city played in the fight against slavery. we were just talking about how it connects to our heritage, being black women, and how empowering and invigorating it is to know part of your history. and i head up to the hebrides for a spot of stargazing, scottish style. so those are the stars! that's way more than you can see with the naked eye. we are off to the us now where the story of how the american civil war ended slavery in the country's southern states is a well—known one. but what is not so well—known

is the story of the underground railroad. it was a secret network which, before the civil war, help to smuggle escaped slaves out of america and onto freedom. a new tour is helping many local people from chicago reconnect with that history, and we've been to meet some of them. the underground railroad has no stations, no trains, and no tunnels. it got its name because it operated amidst the highest secrecy. 0nce escaping slaves jumped on—board the railroad, they simply vanished until they were either recaptured or reached their final destination — freedom. an undercover network of conductors — or guides — operated along the route of the railroad, which stretched from slave—owning states in america's deep—south all the way north to the canadian border. now, something called the african—american heritage

water trail has been created to help preserve and share the history of this little—known but important section of the underground railroad. it really starts with days like this, paddling along the african—american heritage water trail and telling the stories of folks who've shown courage and fortitude. we're from the south side of chicago, born and raised. i got an email to come out and take part in his historic canoeing trip. i wanted to bring these guys along — these are my daughters. there are 29 stops along the self—guided journey, covering more than 180 years of african—american history. you have freedom seekers travelling from south further north and this being a point of salvation in terms of, like, being able to stop somewhere and then be guided further up north in a safe space.

it's estimated that tens of thousands of escaping enslaved african—americans used the underground railroad to push north and finally cross the border into what was then known as british north america, or modern—day canada, and freedom. the indiana avenue bridge was built by george dawson and his son, who were abolitionists, back in the 1830s. along with the bridge came a new ferry, which became an integral part of the escape network. along the trail, you'll also find several locations like ton farm, which was owned by a dutch farming couple that provided safe places to stay, offering escaping slaves food and shelter for the night before they continued their journey north. there were black abolitionists and white abolitionists working together to assist freedom

seekers and some of those folks stopped at the ton farm. this site is a stop on the journey. when we finally did the very deep map and archaeological research that the actual site of the ton farm is on the property of what is now called chicago's finest marina, which is the oldest black—owned marina in the chicago region. we're part of chicago but we're also part of a deep, rich history that has not been told yet. the property was actually used during the underground railroad to hide freedom seekers who were coming from all over, trying to escape slavery down south. and just to look off into the water and wonder what their travels were to get this far and this close. the mixed emotional thing because it is an honour being the owner but also, you are kind of like the keeper of the records.

piece by piece, researchers have been slowly uncovering many of the until now unknown people and places that played such an important role in the story of the underground railroad. it is a tale of bravery, endeavour and, above all, hope for freedom and a better life. me and my paddle buddy, we were just talking about how it connects to our heritage, being black women, and how empowering and invigorating it is to know parts of your history. our ancestors, the people came before us, the freedom seekers — i felt honoured for a moment just to be where they walked and kind of experience a little bit of what they may have experienced. i love the term 'freedom seekers' because had they sought freedom, who knows where we would have been to this day.

well, if you are a regular view of the travel show, you will remember that earlier this year, we took a trip across the length and breadth of the british isles in our all—electric travel show van. but when we visited the outer hebrides, the group of islands off scotland's wonderful west coast, we made an extra stop in stornoway, where i met the organisers of the annual hebridean dark skies festival, which ended this month. stornoway is the main town on the outer hebrides. around 6000 people live here — roughly a quarter of the island's entire population. and despite the weather, they have given me a warm welcome. hello! hey, guys! chuckles. i have arrived at the town's an lanntair arts centre, where they are just about to wrap up their latest exhibit.

andrew, so what are we seeing here on this screen? this is a series of films called 0ur night skies, which were made all over the world during lockdown. ah, wicked! it was commissioned by an artist collective called lumen, and lumen are doing theirfirst scottish exhibitions as part of our festival. andrew is one of the main organisers of the hebridean dark skies festival, which has been running since 2019 with events combining art and astronomy. i think one of the interesting things that artists and astronomers have in common is this sense of wonder, you know, about the universe and the scale of the universe. and would you say that you could only really hold a festival like this here in the hebrides? i think so, yeah. because you've got, on the one hand, you've got stornoway

with a fairly sizeable town with an arts centre. but on the other hand, the rest of the island is mostly villages and so, there is almost no light pollution and so, that's where you really get to see the incredible skies above. one of the best stargazing spots on the island can be found one hour down the road at gallen head. it was an raf base during the cold war and now, it's where the festival takes people to observe and photograph the night sky. this is andy. andy! so we've got andrew and andy — you have done this on purpose, haven't you? we have, just to confuse you. what is it about seeing galaxies and seeing stars? 0h, they're just — well, galaxies in particular are so far away, you know? you're looking back in time. one of our nearest galaxies the andromeda, it's 2.5 million light years away.

it is like a moment in time, isn't it? and this area is particularly good for seeing the planets? oh, it's amazing. we have some of the darkest skies in the whole country. around the world, there are more than 100 official dark sky locations, designed to protect remote spots like this one against light pollution. gallen head has not been officially recognised by the dark sky organisation but as the last rays of sunshine fade away, i am given one of the best views of the night sky that i have ever seen. soaring music plays. all right, so show me how to take these pictures then, andy. this? that's the one. yep, yep. yep, that's all you need to do — press that one. andy set up the camera to take 30—second—long exposures — that's to allow enough time for the light from those distant stars to reach the camera's sensors. so those are the stars?

that's way more than you can see with the naked eye! are there any galaxies and stuff like that? can you see them yet? or is this camera not good enough? this camera would not be good enough, no. but a telescope would be. 0k! so is there like a camera on the bottom of this? that's right, yep. very clever! light, please. thank you! and here. yeah. here you are. so that is a galaxy? that is a galaxy, which is... i mean, it — i thought that was a galaxy, because it looks like the opening credits of a sci—fi movie. right? i mean, i know that sounds really weird! but that is so cool! so that is is called messier 101 or the pinwheel galaxy, which is about 21 million light years away...

quite far away! ..give or take the odd yard. it is really beautiful, and you know what? guys, this is the first time i've seen a galaxy in real life. 0h, great! no, this is my first time. congratulations. no, thank you for this. this is — yeah, it's so cool! look at that! and the hebridean dark skies festival starts up again in february next year. now, that was a really special experience. seeing all of those galaxies millions of light years away blew my mind. truly amazing! now, i hope you enjoyed that because that's your lot for this week. join us next week, when...

christa will be in iceland, joining the annual traditional round—up of thousands of wild horses before the winter sets in. and these guys are not just any old horses — these are viking horses. no time to check them. and we start an epicjourney to siberia in a car that's frankly seen better days. i hope you canjoin us for that — and don't forget, in the meantime, you can find more about travel show adventures on the bbc iplayer. but for now, from me, ade adepitan, in an autumnal london, it's goodbye.

hello. after a warm and wet october the stormy final weekend has a different flavour to our weather now that we are into november. low pressure is moving away, around and there are still showers but overall it is looking drier. now with a developing northerly breeze coming into the uk and it's chilly now, but it is turning colder still in the next couple of days. here's what's on the agenda for the rest of the week. we've established as low pressure moves away, drier, the air around it turning colder. some sunny spells, yes, a chance of showers mainly coastal areas. 0vernight fog and frost, both of those in some spots as tuesday begins, especially across parts of england where the coldest areas here getting close to freezing at the day begins. showers from the word go in northern scotland, and some of these can be heavy maybe with hail and thunder. and some will push further south across scotland during the day and increasing a chance of catching a shower in northern ireland across parts of wales for the western side of england. much of central and eastern england will state largely dry. many places will see sunny

spells and temperatures across the uk nine to 12 celsius. the wind continuing to ease. and with those light winds overnight and into wednesday that's a recipe for some mist and fog patches, especially across parts of england and wales. and again a recipe for seeing temperatures close to freezing, especially in the countryside for a touch of frost as wednesday starts. so on wednesday, then, again many places going to stay dry. you can see the showers around to begin with and mainly affecting coastal areas. if you running through northern ireland, some into northern scotland. this patch along the north sea coast mayjust push further inland across england during the day with that wind direction. and a colderfeeling day on wednesday with more places topping out in just single figures for the top temperature. as we go from wednesday to thursday, a high—pressure trying to nudge in from the west and with that wind direction also killing off many of the showers across western parts of the uk. we will continue to see them especially along some north sea coast on thursday.

a stronger northerly breeze, more of the wind—chill around on thursday. and there is a change developing in northwest scotland, thicker clouds and some outbreaks of rain starting to move in. a weather system that will bring some rain to parts of scotland, and northern ireland going into saturday and then pushing a little bit further south as the weekend goes on. and that's your latest forecast for the week ahead.

this is bbc news. welcome if you're watching here in the uk or around the globe. i'm david eades. our top stories: world leaders at the climate summit in glasgow promise to end deforestation by 2030 — a pledge that's being welcomed by the united nations. is absolutely a dream come true, we're so excited, it's such an accomplishment, in the game changer and i think people don't realise without this, without. deforestation and restoring the world's forest, we cannot avert catastrophic climate change. it follows an opening day in which india's prime minister, narendra modi, pledged for his country to become carbon neutral

by the year 2070. emergency teams in nigeria work through the night to find dozens of people feared trapped in the rubble