for this report, the bbc's science editor david shukman m nt to a town not far froe disaster scene. we traveled to the heart of bozil's iron country t investigate the dark side of the mines that the industry prefers to keep hidden. we come across a luridly colored stream, a first clue about the pollution created in these hills. suddenly we get this rare glimpse of one of the largest mining dumps in brazil. it is full of the same kind of sludge that flooded out and killed so many people, a byproduct that accumulates dayom after day massive lasiness. the reason theses exist is when you dig or out of the ground, you only want a tiny fraction of the rock, the metal that you are after -- in this case, iron. the rest you have just got to get rid of, and the cheapest way to do th is to build places like this. the problem is they are not temporary. they are meant to last forever. this towering structe e holds udge back, a dam made of layers of mining waste. there are nearly 800 of these in brazil, and many say they are far too weak. people living in the shadow ofie the bahave created this c

david shukman, bbc news, in brazil. let's bring you some breaking news out of the united states.bowl is happening tonight. we have a result in american football. the patriots have beaten the rams 13—3. if you record were made. tom brady, the oldest quarterback to win a super bowl. and the oldest coach to wina super super bowl. and the oldest coach to win a super bowl as well. that means the patriots have won a sixth super bowl for them. i am sure many fans are thrilled at that. the british prime minister, theresa may, says she's determined to deliver brexit as scheduled on 29 march, promising to return to brussels with new ideas. the backstop guarantee to keep the irish border open will be central to any fresh talks with the european union, after uk members of parliament voted last week to seek alternative arrangements. here's our political correspondent chris mason. after a week when parliament had its say and mps voted to back theresa may's brexit plan if she could change one key part of it, the prime minister has said she's ready to do just that. but what are the new ideas? i

david shukman, bbc news, in brazil.prime minister, theresa may, says she's determined to deliver brexit as scheduled on 29 march, promising to return to brussels with new ideas. the backstop guarantee to keep the irish border open will be central to any fresh talks with the european union after uk members of parliament voted last week to seek alternative arrangements. here's our political correspondent chris mason. after a week when parliament had its say and mps voted to back theresa may's brexit plan if she could change one key part of it, the prime minister has said she's ready to do just that. but what are the new ideas? i asked border force months ago to advise me to look at what alternative arrangements were possible, and they showed me quite clearly you can have no hard border on the island of ireland, and you can use existing technology, it's perfectly possible. the only thing that's missing is a bit of goodwill on the eu side. the sticking point is how to keep an open border between northern ireland and the rep

david shukman, bbc news, in brazil. more on the situation in brazil head to the bbc news website. we're asking the question, how do you get rid of tonnes of toxic waste? find the answer by going to bbc.com/news and then follow the links. could the world be on the verge of a new nuclear arms race between the us and russia? that's the question being asked, after the us suspended a landmark deal, which has been in force for more than three decades. it's accusing russia of breaking it — something russia denies. the agreement in question outlaws the use of intermediate range nuclear missiles stationed on land. laura westbrook reports. in 1987, us president ronald reagan and soviet leader mikhail gorbachev signed the intermediate—range nuclear forces treaty. it led to hundreds of missiles in both countries being destroyed. three decades later, the us secretary of state made this announcement. russia has jeopardised the united states‘ security interests, and we can no longer be restricted by the treaty while russia shamelessly

david shukman, bbc news, in brazil.kward news for the social media giant facebook, after one of the companies it brought in to sift out fake news said it was pulling out of the deal. the company concerned is snopes, it was one of more than 30 fact—checking operations working with facebook. but there had been reports of frustrations that facebook had been less co—operative than hoped with its partners. in announcing its withdrawal, snopes said... facebook also released a statement, stating... 0ur north america technology reporter dave lee is in san francisco and says this is a very awkward situation for facebook. snopes it is seen as one of the leading fact checking organisations on the internet so for them to be pulling out of this field is pretty embarrassing for facebook and could harm the view it is trying to launch and try to get on top of it misinformation problems. snopes has been working with facebook since late 2016. in their statement today they did allude to the fact that financially it could be difficult for

david shukman, bbc news, in brazil.wo of the companies brought in by facebook to sift out fake news says they are pulling out of the deal. snopes, one of more than 30 fact—checking operations working with facebook, pulled out earlier on friday, and in the last few minutes the bbc has confirmed that the associated press has also has ended its deal. our north america technology reporter dave lee is in san francisco and says this is a very awkward situation for facebook. snopes is seen as one of the leading fact—checking organisations on the internet, and so for them to be pulling out of this deal in the way they have is pretty embarrassing for facebook, and could harm the view that it's trying to nurture, that it's trying to get on top of its misinformation problems. snopes has been working with facebook on this since late 2016. and in their statement today, they did allude to the fact that financially it could be difficult for them. we know in 2017, for example, facebook paid just $100,000 to snopes to do this fact—check

our science editor david shukman has this report from the site at brumadinho. and destroying on an unprecedented scale. a once beautiful valley is now filled with sludge. and even now, more than a week after the disaster, rescue workers are still finding bodies swept along in the deluge, provoking more anguish and anger. a crowd denounces the company that owns the mine, vale, for failing to keep people safe. this man lost a friend at the mine, who had said the dam was leaking before it collapsed. and these student volunteers told me this kind of catastrophe just shouldn't happen. i think brazil has to, like, do a law and start to work everywhere in brazil, to work with these companies, because it has happened again. people died there. so that's really stronger. that, like, hurts our hearts. when the dam broke, a warning system should have alerted everyone downstream, but vale now says the deluge was moving too fast for that to happen. so there was no sound from this siren near the home of mario fontes. last year, vale calculated the likely impact of the dam col

david shukman, bbc news, in brazil.ondon has become the first person to be convicted of female genital mutilation in the uk. the old bailey heard that the accused, who's originally from uganda, cut her daughter, who was three at the time. the woman also believed she could silence the police and prosecutors by practising witchcraft. the girl's father was found not guilty. adina campbell is with me now. this is a huge milestone in the battle against fgm, isn't it? today's verdict is hugely significant. almost 140,000 women and girls are affected by female genital mutilation here in the uk, even though this is a crime that has been illegal since the mid—19 80s. so the fact we have this conviction isa big, so the fact we have this conviction is a big, big win for the survivors, theirfamilies is a big, big win for the survivors, their families and campaigners who have been fighting long and hard to see this happen. the girl at the centre of this case was just three yea rs old centre of this case was just three years old when

david shukman, bbc news, in brazil.l bear the name of rosalind franklin. at least 30,000 people from across europe took part in a competition to name the vehicle, which was build in the uk. the announcement was hosted by astronaut tim peake and our science correspondent rebecca morelle was there. i am here at a mock—up mars where the prototype rover has been put through its paces. it's designed to roam across the rocky martian terrain. this mission is nearly complete. everything is almost ready but one vital element has been missing and that is the name, and today it's been unveiled as the rosalind franklin rover. to explain why, i'm joined by british astronaut tim peake. tim, why is this rosalind the rover, why the name? rosalind franklin, a great british scientist who did so much to unlock the secrets of human life, the dna and double helix so it's only fitting that the mars rover is named after her because it will be searching for signs of past life on mars. you got the public involved with this naming process. absol

david shukman, bbc news, in brazil.e is planning to keep a military base in iraq in order to watch iran. he was speaking in an interview with the television network, cbs, during which he also said that sending the military to venezuela was " our washington correspondent, chris buckler, said mr trump was questioned in—depth about his foreign policies. this was a pretty wide—ranging interview on cbs's programme, face the nation. in which donald trump was asked time and time again about his foreign policy and that's not least because some in his intelligence agencies have been given very different messages from the white house itself. president trump made clear he did disagree with them on a number of issues, for example, he is determined to bring american troops back from the middle east. however, they believe that might be premature in some cases. they are concerned about the potential of groups like isis rebuilding. mr trump did say he would maintain a presence in iraq and he said that is partly because of iran and thei

david shukman, bbc news, in brazil.evices should be kept out of their bedrooms at night. that's the basis of the first—ever guidelines on screen use from the uk's most senior medical advisers. the uk's four chief medical officers also recommend that children do no more than two hours without taking a break from screen—based activities. hugh pym reports on the recommendations. on average, i spend around three hours a day online, looking at a mixture of social media, entertainment, and watching tv or tv series and also using it for my homework. about two hours that i spend on snapchat, instagram, and other social media, looking at my friends' photos. i use maybe half an hour each day, may be looked up sites maybe looked up sites or watching youtubes. school kids tell us what they think about social media and using their screens. gosh, it's good. here, they're taking part in workshops on internet safety, including storytelling. she started looking at everything that popped up on her screen, hoping for an upgrade, till it c

that was our science editor, david shukman, at kew gardens in south west london.he daffodils out, and we have broken the all—time winter record. 21.2 celsius and that is 70.2 fahrenheit, pretty incredible for this time of year. and it doesn't look like we are going to beat this tomorrow because things will change be on wednesday. under the clear skies, temperatures will fall away and we see patches of mist and fog developing in southern eastern england. 0ne mist and fog developing in southern eastern england. one or two sheltered spots, particular north—east on scotland could see a touch of frost, so another chilly start of the day with a mist and fog clearing. a few patches lingering on across eastern england. subtle changes taking place, western scotland, western parts of england and wales could see cloud but widespread sunshine for most but the temperature is not quite as high as today and still very mild for the time of year at 18 or 19 celsius. we have lost a big area of high pressure and we are picking up influence from the atlantic and that will bring weath

david shukman, bbc news, in brazil.ark in near—freezing overnight temperatures. the newborn was discovered in east ham in east london, when a woman walking her dog heard the baby crying. she was taken to hospital and is said to be in a stable condition. karen allen has more. this is the moment captured on security cameras when police cars raced in, and it dawns on concerned neighbours that something's up. in fa ct, neighbours that something's up. in fact, what has happened is this newborn baby girl has just been discovered abandoned in an east london park. given the winter chill, it's a wonder the infant survived at all. temperatures were way below freezing here. as dog walkers discovered her, wrapped in a blanket and gently placed in a plastic bag and gently placed in a plastic bag and set down next to this bench. she appears to have been there a while. my mum, she was walking the dog, and she heard a noise coming out from the bag. she rang me up because she was too scared to approach the bag, and i came. i just found

that's warmer than some mediterranean cities like barcelona. 0ur science editor david shukman has spent gardens in west london, and with the air so unusually warm and the sun so dazzlingly bright, it really does feel like summer. and no surprise, this extraordinary spell of weather has set new records for temperatures for this time of year. obviously, a lot of people are out enjoying themselves. these crowds are apparently nearly double the numbers you would normally get here in february. there's a kind of holiday atmosphere. it's here at kew gardens that weather history has been made with a new record, the highest winter temperature ever recorded in britain. as global temperatures rise, we're going to get more extreme heat events. this is just one example that's happening today. as we go into the future, this sort of thing is going to get more common. so something that's perhaps a one—in—a—thousand event in the 1950s is now a 1—in—15 event. but what does this sudden warmth mean for the natural world? the bumblebees are out, and very busy. and i caught up with one of the experts here, t

david shukman, b news, in brazil. jane: you are watching "bbc world news america." to come on ton , the british public has spoken. the name of the new mars rover will honor scientist rosalind franklin. 20,000 dead or dying birds have been washed up on beaches along the dutch coast. they all showed signs of severe starvation. some fear the was -- that is still for muchf last month caused the deaths. some of them may have been transporting hazardous materials. a warning, you may find some of these images distressing. reporter:hiis just one of thousands washed up on the beache the massive deaths here on the dutch coast have baffled scientists who are pursuing three main lines of inquiry -- the birds may have eaten plastic , they could have been poisoned by caravan leaking into the sea, or that hazardous chemicals may have soaked into the feathers from aff hunt and insulate themselves from the water. biologist and seabird specialist is leading the investigation. bad shape.d in very even on the outside it is really skinny. reporter: the birds feed mostly on fish. bass an

david shukman, bbc news, in brazil.ould be banned from bringing smartphones into school. that's according to the minister for school standards in england nick gibb. the government is preparing to publish new guidance on internet safety, social media and online gaming. here's our political correspondent chris mason. schools in england already have the power to ban phones from being brought onto the premises but government policy is that it's the responsibility of head teachers to determine whether this is appropriate. nick gibb said that it was his own view that schools should ban their pupils from bringing smartphones into school. the government is due to publish new guidance for schools shortly and it's expected to say children should be taught to limit the amount of time they spend on the internet. mr gibb said while there was nothing intrinsically damaging about spending time online, it reduced time the conversation, exercise, homework or play. the trade union the naht, which represents school leaders, and particular

david shukman, bbc news, in brazil.ter for school standards in england has told the bbc he believes pupils should be banned from taking smartphones into school. the government is about to publish new guidance on internet safety, social media and online gaming. the minister, nick gibb, said that while there was nothing intrinsically damaging about spending time online it reduces time for conversation, exercise, homework or play. the germanjustice minister has told breakfast there will be no renegotiation over the plan to avoid a hard border on the island of ireland after brexit. mps agreed this week that theresa may should hold further discussions with the eu over the so—called backstop. katerina barley told us a delay to the date of brexit is not out of the question, but the british government needs to be clear about what it wants. we can talk about a delay but we need an idea at the least of what we are going to negotiate within this delay and i don't see a plan. i really do not see where and how other solutions can be

our science editor david shukman has traveled to the site in the southeast of brazil and sent this report offirst, a long dust. then a nightmare vision of an unrelenting torrent of sdge. the waste of decades of mining racing towards hundreds of suspecting people down below. the catastrophe unfolded over -- a week ago, but only now has this video come to l tht, adding to sense of loss and outrage. diffict for you. lthis red cross volunteerds me to the edge of the disaster zone. >> six bodies. david: he alone has found six bodi. any hope of reaching survivors in thiendless sea of mud was quickly dashed. emergency woers are now scouting for any signs of bodies from the air, and ey are pickingir tay over this horrific landscape. we spotted this search team with a sniffer dog in the distance. by the time the wall of mud rich -- reached this point, it had already overwhelmed the cafeteria where the miners were having lunch and destroyed the offices of the mine itself a befoiving here, tearing e rough a hotel before surging on over that bri the distance and down into the valley beyond, where it

david shukman, bbc news, in brazil. jane: the u.s.nnounced plans to pull out of an arms control treaty with russia after what it calls clear violations. the cold war-era pact bans bot nations from short and intermediate range land missiles in europe. but the trump administration announces that a new russian cruise missile violates the agreemen and nato says it fully supports the withdrawal notice. here was the u.s. secretary of state earlier today. secretary pompeo: russia has jeopardized the united states' security interests, and we canon nor be restricted by the treaty while russia shamelessly violates it. if russia does not rto full and verifiable compliance with the treaty within this six-month period by destroying its inf-violating missiles, the treaty will terminate. there.ike pompeo for more on the implications of the announcement, i spoke w brief time ah jeffrey edmonds, who served as director for russia on the national security council in the obama administration. he is now center.odrow wilson thank you very much for joining

our science editor, david shukman, reports from the site of the dam, in the state of minas gerais. local people here just trying to come to terms with what on earth happened, so let me try to explain to you how this disaster unfolded. up in the hills beyond, that's where the dam itself was, holding back a great lake of sludge. it broke, as we know, and a torrent of heavy cement—like mud tore its way down one of these valleys just in the distance there, overwhelmed the cafeteria, where the miners were having lunch, overwhelmed the offices of the mining company itself. then it swept into this area where we are now. right in the middle of this little area was a posada, a kind of small hotel with holiday chalets. that was all swamped by the mud. just close by here — this was basically a farming area, this was basically a farming area — a little farmhouse, just absolutely wrecked by the power of the deluge of mud. what happened next is that the mud didn't just stay here, it was moving incredibly rapidly. you can still hear the search and rescue helicopters buzzing around and occasionall

hundreds of people are still missing. 0ur science editor david shukman reports from the site of the dam

110 people are now known to have died in the disaster, hundreds are missing. 0ur science editor david shukmanwed to get to the disaster site. you have local people trying to come to terms with what earth happened. let me try to explain how it worked, how the disaster unfolded. up in the hills beyond, that is where the dam was, holding back a lake of sludge. a torrent of heavy cement like a mud tore down the value, overwhelming the cafeteria where the miners were having lunch and overwhelmed the offices of the mining company itself. it then swept into this area where we are now. right in the middle of this little area was a posada, a small hotel with holiday chalets. that was swamped by the mud. close by, this was basically a farming area, a farmhouse absolutely wrecked by the power of the deluge of mud. what happened next is the mud did notjust stay here, it was moving rapidly. you can still hear the search and rescue helicopters buzzing around and occasionally we see rescue teams. i say rescue, they are now in the business of searching for bodies. a team we sawjust now had a dog with them an

our science editor david shukman reports from the site of the dam, in the south—east of brazil.st, a long cloud of dust, then a nightmare vision of an unrelenting torrent of sludge, the waste from decades of mining racing towards hundreds of unsuspecting people down below. the catastrophe unfolded a week ago, but only now has this video come to light, adding to the sense of loss and of outrage. and difficult for you. this red cross volunteer, henato silveira, leads me to the edge of the disaster zone. seis corpos. six bodies. he alone has found six bodies. any hope of reaching survivors in this endless sea of mud was quickly dashed. emergency workers are now scouting for any signs of bodies from the air, and they're picking their way over this horrific landscape. we spotted this search team with a sniffer dog in the distance. by the time the wall of mud reached this point, it had already overwhelmed the cafeteria where the miners were having lunch and destroyed the offices of the mine itself, before arriving here, tearing through a hotel and holiday chalets, before surging on ov

our science editor david shukman has spent the day at kew.rm and the sun so dazzlingly bright, it really does feel like summer. and no surprise, this extraordinary spell of weather has set new records for temperatures for this time of year. obviously, a lot of people are out enjoying themselves. these crowds are apparently nearly double the numbers you would normally get here in february.

0ur science editor david shukman has spent the day in the record breaking temperatures at kew: a wonderful bright, it really does feel like summer, and no surprise, this extraordinary spell of weather has set new records for temperatures for this time of year. obviously a lot of people are out enjoying themselves. these crowds are apparently nearly double the numbers you'd normally get here in february. and of course, most people are in shirtsleeves or sun hats. there is a kind of holiday atmosphere. but what does this sudden warmth mean for the natural world? the bumblebees are out, and very busy. i caught up with one of the experts here, trying to work out what happens as the insects are active too early in the year. often a lot of solitary bees have a very short window where they're active in the year and it mightjust be a month, a couple of weeks. if there is a mismatch with their food plant, that might be really a problem for them to be successful, yeah. while the warm spell rolls on, it's here at kew gardens that weather history has been made, with a new record. the highest winter te