we need to eat less meat to help tackle climate change — that's the warning from united nations experts. scientists have warned that intensive farming to produce meat and dairy products is having a growing impact on the planet. the choice between broccoli and ribs on your plate actually has a real link to the level of global warming that we're likely to see. but the un stopped short of telling people they should become vegetarians or vegans. also tonight: a police officer's recovering in hospital after being stabbed with a machete in a frenzied attack in east london last night. a 14—year—old girl has died after three teenagers were pulled from the sea near clacton pier in essex. the prime minister promises to fast—track visas for top scientists coming to britain as he says he's confident

a deal can be done with the eu. there's every possibility for the eu to show flexibility, there's bags of time for them to do it, and i'm confident they will. and hundreds of millions of pounds spent on transfer deadline day. we'll be finding out who's gone where. and coming up on bbc news, wolves are in action europa league qualifying — they're in armenia for their first european game outside of the uk since 1980. updates coming up. good evening and welcome to the bbc news at six. we're all being urged to eat less meat and make our diets more plant—based in a bid to help tackle climate change. united nations experts say we're consuming far too many meat

and diary products in the west and that is helping to fuel global warming. but their new report stops short of saying people should become vegetarian or vegan. here's our science editor, david shukman. a wall of dust smothers the parched fields of oklahoma. the planet is heating up, which may make it harder to grow the food we need, just as the world's population keeps increasing. there'll be two billion more of us by the middle of the century. and at the same time, up to a third of all food is wasted. and as it rots, it releases gases that raise temperatures even more. and this exacerbates climate change... the un climate panel highlights these challenges in a major new report into how we're damaging the land we depend on — and what that means for the future. we see very high risks, and that becomes incredibly scary not just for the public, but for us as individuals and scientists, and the question is, what can we do to avoid those risks and build a betterfuture?

the first step, the scientists say, would be to see an end to clearing forests like the amazon. as we reported last month, the trees store huge amounts of carbon, but they're being felled to make way for cattle. and because the animals generate a lot of methane, a warming gas, the report says that eating less meat and more plants would really help. so what we choose to put an our plate helps define what the carbon footprint on the level of greenhouse gases in the atmosphere, so that choice between broccoli and ribs on your plate actually has a real link to the level of global warming that we're likely to see. the report suggest that we have to come up with clever new ways of producing food of using land if we're to have any chance of avoiding the most dangerous impacts of climate change. and it's very clear that switching to renewables on their own won't be enough.

at this research farm in the netherlands, a glimpse of a possible future — with a robot working a field. this is the view from the machine, spotting weeds in the crop. and planting everything in strips limits the spread of pests and the need to spray. up the road, a dairy farm that's floating in rotterdam. cows produce milk where consumers live, cutting the need for transport. the same in nigeria — this food is grown in the city where it's eaten. and in tokyo, a paddy field on a rooftop. urban farming can be more environmentally friendly. the teenage campaigner greta thunberg was in geneva to thank the climate scientists. she says she's a vegan and that attitudes depend on age. it feels like many older people feel like, "why should i care about this?" "this is not going to affect me as much."

but young people feel more like it is going to affect them. wind tears away precious soil from the fields of norfolk. the more the land is degraded, the less it can absorb carbon from the air, and the more temperatures will rise. david shukman, bbc news, in geneva. so will these warnings from the united nations have any effect on what people put in their baskets? our correspondent sima kotecha has spent the day with one family, finding out whether it's making them rethink. so we buy our fruit from an organic fruit company, which delivers every week. we go and collect our vegetables from the farm. if we can eat a plant—based diet... helen's been a vegetarian for most of her life. for herfamily, fighting climate change is a daily priority. we drive a few miles to get our vegetables — or cycle even — rather than eating food that's come from china or america.

so all the carbon in the travelling is much less. and i also think it's important to build localfood production. is this something that people should really be worrying about? because there are people out there who genuinely believe that there are more important things in the world than climate change. i can't think of anything more important. we are talking about, in the near future, potentially not being able to produce enough food for the planet. her son quillan, a music enthusiast, says he is doing his bit to help the world. i think if climate change didn't exist, i would eat more meat, probably. but i. . .yeah, probably. so you're not going to give up sausages altogether? um... you're thinking about it. maybe. sima kotecha, bbc news, warwickshire.

our science editor, david shukman, joins us now from geneva. that family have been persuaded, but this is a warning from scientists, not an order. that's right, i mean, the scientist are very keen not to look like they are bossing anyone around, they point out that in some of the poorest countries of the world, there are nomadic people who can't grow crops so depend on animals for their survival, and all over the world are people with health conditions for whom meat may be beneficial. they say theyjust wa nt to be beneficial. they say theyjust want to point out the evidence that a meat based diet has a bigger impact on climate than one based on plants, and interestingly when i spoke to the campaigner greta thunberg earlier today, she who has inspired so many millions of people around the world, she said she's vegan but immediately added that she didn't want to tell anyone what they should do. i think what's striking about today is that climate change can about today is that climate change ca n ofte n about today is that climate change can often seem a very remote, a bstra ct can often seem a very remote, abstract sort of concept. what this

report does is bring it right in front of each of us, onto our plates, and the choices we make about what we eat every day. sophie. david shukman in geneva, thank you. a police officer was stabbed in a machete attack as he tried to stop a van in east london last night. the officer managed to taser his attacker while being stabbed in the head and body. he is in hospital with multiple injuries but is expected to recover. a 56—year—old man was arrested at the scene. our special correspondent lucy manning reports. blood pouring from stab wounds, this police officer has just been attacked by a man with a machete. officers bandage his head in east london in the early hours of the morning. the weapon can be seen, carried by another officer. is it a machete, then? a man in his 50s is pinned to the ground. he is alleged to have stabbed the policeman a number of times, but the officer managed to taser him. muhammad faisal saw what happened from his window.

the officer was lying on the floor facing upwards, all his clothes were torn apart next to him, the taser gun was next to him as well, and someone sitting on his head side was actually trying to stop the bleeding because there was a lot of blood on the street over there. the guyjust came at him and attacked the police officer, very terrifying. there was another officer who was crying, holding the machete. everyone is carrying knives, and things like this is getting out of hand. the injured officer is recovering in hospital. he is seriously injured but stable. a routine attempt to stop a van turned into a vicious attack. frenzied, unprovoked, shocking. a violent struggle ensues where he produces a weapon and stabs our officer in the head and around the body, and also during the struggle the officer has managed

to get his taser and deploy it, which stops the incident. officers are not only having to tackle the rise in knife crime but facing more attacks themselves. obviously what this underscores for me is the bravery of our police, people who actually go towards danger to keep us safe. our sympathies obviously are with the officer and his family. but also it shows to me the vital importance of investing in policing. blood is still visible on the pavement. the officer lucky that he is one of the ones equipped with a taser and was able to use it. the law has been tightened so that anyone assaulting a police officer is nowjailed for a year rather than six months, but this was a much more serious attack that police are facing more frequently. 30,000 officers were attacked in england and wales last year, 4000 more than the previous one — the reality of the danger of the police face. lucy manning, bbc news.

a 14—year—old girl has died after being rescued from the sea near clacton pier in essex. police said three people were pulled from the water this afternoon. our correspondent debbie tubby is there for us now. at about1:30pm at about 1:30pm this afternoon, the emergency services were all called here after reports that three teenagers, all related, had got into difficulty in the waterjust behind me. beach patrol, run by the council, where the first on the scene, and i pulled it a three onto the beach and spend lots of time treating come up with the emergency services, and resuscitating them. i have spoken to several people who said the teenagers were fully clothed. i have also spoken to another man who said he spent a long time resuscitating and treating the 18—year—old man, the oldest one out of the three. tonight, essex police have confirmed that the 18—year—old is in have confirmed that the 18—year—old

isina have confirmed that the 18—year—old is in a critical but stable condition. they've also confirmed that the 14—year—old girl has sadly died and a third and final teenager, the 15—year—old girl, is said to hopefully make a full recovery from this incident. and essex police have said they are with the family, supporting them as best as they can at this difficult time. debbie tubby in essex, thank you. the prime minister has warned mps to get on and deliver brexit by the end of the october and he called on the eu to deploy common sense, suggesting they was bags of time to reach an agreement. he also announced plans to develop a new fast—track visa system to attract top scientists from across the world. our political correspondent ben wright reports from oxfordshire. oh, i've got it. trying to grapple with something very complicated — brexit will bring a shake—up of the immigration system, and visiting labs inventing energies of the future, borisjohnson said visas for the sharpest science and engineering minds

would be fast—tracked. we're going to turn the uk, as it were, into a kind of supercharged magnet, drawing scientists, like iron filings, from around the world to help push forward projects in which we can not only take a scientific lead but a commercial lead as well. this sort of research is expensive. the eu has funded a lot of it, and there have been warnings from within the sector a no—deal brexit would be damaging. obviously, we don't want a no—deal brexit, we're working for a deal, but be in no doubt that the uk will continue under any circumstances to collaborate in great scientific projects. the circumstances of britain's departure from the eu remain totally uncertain. if borisjohnson decides to go for a no—deal brexit, many mps here are determined to try and stop him. what you have is the rather absurd sight of a prime minister who, in 2016, posed as a champion of parliamentary democracy, turn, in 2019, into some kind of dictator.

parliament will not stand for it, we have the mechanisms available to stop no—deal from happening. every mp should work to make sure that happens. borisjohnson wants to get a new brexit deal agreed with the eu but is braced for an autumn battle with parliament if he can't and the government tries to leave the eu without any agreement. can you guarantee that you will not seek to bypass parliament to get a no—deal brexit through? what mps should do is honour the mandate of the people and leave the eu on october the 31st, and that is what... but, mrjohnson, you know that mps do not want a no—deal brexit, there will be a confidence vote, they may well try and force you to resign, orforce you to hold a general election. do you simply plan to dig into number ten? colleagues in the house of commons can see that if we are to restore trust in our democracy, faith in politics, faith in the ability of politicians to deliver on their promises, then we have to leave the eu on october the 31st.

a few weeks ago, you said the chance of a no—deal brexit was a million to one — do you still think that? i think that if there is common sense and if there is goodwill on the part of our friends and partners, which i assume that there is, then that's absolutely right. your strategy is to wait for the eu to blink, and if they don't, it's a no—deal? there is every possibility for the eu to show flexibility, there's bags of time for them to do it, and i'm confident they will. so we're another day closer to brexit, there is no new deal, little sense from the prime minister here in oxfordshire that he's urgently trying to negotiate one, and the stand—off with the eu continues. ben wright, bbc news. the time is quarter past six. our top story this evening: scientists warn that intensive farming of meat and dairy products is having a growing impact on the

planet. with millions visiting snowdonia every year, the great project to ensure the great outdoors benefit local people too. coming up on sportsday on bbc news... england lionesses captain steph houghton calls to end period poverty — to get more young girls following in her footsteps. more people than ever before are waiting for routine operations in england, like hip and knee replacements. there were more than four million people on a waiting list injune — that's a record. figures also show that accident and emergency attendances last month were the highest they've been since records began. nhs england says the heatwave was one factor but overall demand has also increased. our health editor hugh pym reports. les has been running pet is mrs in devon but work got more and more difficult as he struggled with pain

from his hip which needed a replacement. that should have happened in months but he waited for more than a year before finally he managed to get it done on the nhs. the date kept getting put back and put back and that was unacceptable to me and i'm sure it is to many other people as well. operations like that can be delayed because beds are taken up by patients needing urgent care. at this london hospital, the chief executive has an overview of the pressures across the system. hospitals are very full which is remarkable forjuly and august. altogether i think it is a reflection of a system that is under severe pressure, where demand is much higher than available capacity. the stifling heat in many areas last month contributed to record numbers going to a&e departments in england, nearly 2.3 million. emergency department consuls loads argue there are many factors behind the

increase. —— consultants argue there are many factors behind the increase. overall, if you look at the trends, they clearly show that u nfortu nately we the trends, they clearly show that unfortunately we seem to be going backwards in terms of being able to maintain decent levels of system performance, and that is a real cause of concern. the four-hour target for patients being treated was missed again. there has been a series of government health announcements for england this week and a spokesperson highlighted the latest funding commitment for hospital buildings and equipment, but in some senses the latest figures are a reality check on the state of the nhs. as you can see, it can be quite strenuous. i wouldn't have been able to do this previously. for les, having the hip operation has made a big difference to his work and every day life. the

change it has made is inestimable and ifi change it has made is inestimable and if i hadn't had it done, i would still be waiting now. more than half a million people in england are enduring long waits for surgery and the number is rising month by month. hugh pym, bbc news. a teenager has appeared at the old bailey accused of attempted murder after a six—year—old boy was allegedly thrown from a viewing platform at the tate modern gallery in london. the boy, from france, was visiting london with his family. he's now in a stable condition in hospital after falling five storeys, fracturing his spine and suffering a bleed to the brain. the 17—year—old will go on trial in february. nationwide building society will refund overdraft charges to 320,000 customers after being found to have broken the law by not letting customers know they were about to be charged. the group will pay back £6 million after admitting that text messages — that were meant to warn customers over unauthorised lending — were not clear enough. britain will continue to accept

interrail and eu rail train passes after a decision to remove the country from the schemes was reversed. the rail delivery group said it renewed talks before of strong reaction to news of our departure. the passes entitle holders to travel across europe by train, visiting as many as 31 countries. police in malaysia say they still believe an irish teenager who went missing at the weekend is likely to be in the vicinity of the resort where she was staring with her family. research teams plan to play a recording of herfamily on loudspeakers to find nora quoirin, who has a learning disability. it's a big day for premier league clubs who have been adding the finishing touch into their squads ahead of the

new season which starts tomorrow. the summer transfer window closed just over an hour ago and natalie pirks is live at arsenal where they've made some of the day's most eye—catching signings. unai emery has managed to get the signature of kieran tierney from celtic. they pay 25 million for him which is a scottish record deal, but the most eye—catching and slightly out of left field it has to be said deal has come in the form of chelsea's centre back david luiz, joining the gunners on a two—year dealfor £8 million. we are joining the gunners on a two—year deal for £8 million. we are waiting for that to be ratified, every expectation it will be before the deadline at seven o'clock. back in may he signed a contract extension with chelsea, said he was happy to be there. it was worth 120 ground per year. now his new boss frank lampard per year. now his new boss frank lampa rd has per year. now his new boss frank lampard has deemed him surplus to requirements, but that £8 million is a drop in the ocean compared to what other clubs have been spending. manchester united have spent the most of any club, and paid £80

million for the england defender harry maguire from leicester, making him the most expensive defender on the planet. they have recouped some of that in the £70 million they got today for romelu lukaku who is going today for romelu lukaku who is going to inter milan. we haven't had any definitive figures yet for how much has been spent in this window but the record was back in 2017, 1.420 five million and we could be getting close to that again. it's a zebra crossing in north london, and its famous because 50 years ago today the beatles —john lennnon, ringo star, paul mccartney and george harrison — were photographed striding across it on abbey road outside the emi studios, where they'd recorderd the album of the same name. this morning, beatles fans filmed themselves on the crossing. later, police had to intervene as crowds blocked abbey road when a tribute band recreated the moment, just after 11:30, when the original photo was taken. millions of people visit the mountains of snowdonia every year. but until recently few local residents were getting involved

with the opportunities offered by all those visitors. a charity stepped in to help people from deprived communities find jobs and take part in outdoor pursuits themselves. it has been such a success it's now going to be tried out eleswhere. sian lloyd reports. getting the adrenaline pumping in the mountains of north wales, an area where the adventure tourism market has been growing. but taking the leap into working in the outdoor activity sector has been challenging for some. growing up in north wales, there were very few opportunities to take part in outdoor activities. there was certainly no outdoor club in my community so we grow up. we don't have the skills, the knowledge, the confidence to use our natural resources on our doorstep and that cultural vicious cycle develops. so what the outdoor partnership has been doing in the last 15 years is starting to break that cycle. and they're doing it

through groups like this one. ryan gibson is now a fully qualified climbing instructor, but for most of his teenage years was homeless living on the streets in holyhead. be able to get the qualifications and be able to progress — that was that was the hardest step really from... for someone from my background if you like. you know, because we've always been led to believe the outdoors is for the middle class really. a study carried out by bangor university found there was a common—held view that mountains were for visitors, and that local people were not benefiting from the opportunities on their doorstep. in 2003, just 7% of all outdoor instructor posts in snowdonia were filled by local people. the figure has now risen to 20%. the impact of this project has been recognised by the national lottery community fund, with an award of almost £3 million given to replicate its model of working elsewhere. it doesn't have to be big steps all the time; it can

be little baby steps. it also encourages people like carina to have the confidence to enjoy the great outdoors. i had an opportunity to try out, you know, climbing and walking and stuff like that. so it's helped mejust overcome personal issues and... i'm going to get emotional here, sorry. it means a lot. yeah, it does mean a lot. after blazing a trail in north wales, the team will now share its experience with communities in east ayrshire, newry and cumbria. sean lloyd, bbc news, snowdonia. time for a look at the weather. here's helen willetts. the weather forecast for the next couple of days is terrible. the yellow weather warning and the strong winds, how unusual is that for august? we have so many yellow weather warnings out and we don't normally see that many for the time of year.

it is very unusually windy and what's most unusual is the strength of the winds we are expecting inland. you will get one of these deep areas of pressure roughly once per summer, but it looks like we will have a persistent spell of strong winds late friday into saturday across england and wales, and with the trees in full leaf that isa and with the trees in full leaf that is a potential problem. i will take you through the forecast. it is not just the wind, we have had so much rain recently and we have more rain to come. this is the area of low pressure behind me, the swell of low cloud typical of low pressure developing through the autumn. we wouldn't normally be batting an eyelid but these winds would cause issues even in the autumn, and it is august. fine weather continuing as we go through this evening but already the rain is with us in the south—west and that will push northwards. tropical air is mixed in so far most of us there will be a

speu so far most of us there will be a spell of heavy and persistent rain, getting towards the borders, the lowla nds getting towards the borders, the lowlands for the rush—hour, standing water on the roads here, and eastern and northern parts of england. then, although the winds haven't escalated by now, as it clears the way we get some sunshine but also some showers. heavy and thundery showers in the afternoon, and that is when the winds start to escalate across england and wales. we are talking gusts by the end of the day of 60 mph. it will still fill warm because you have the sunshine in between the showers so you will still achieve the temperatures we have seen today up the temperatures we have seen today up to 24 celsius, but it is much windier come tomorrow afternoon. through tomorrow night the winds will escalate further. we have problems with both rain and wind, rain the main problem for most of us on friday until late on when the winds start to escalate, then this low pressure as it stations itself across us low pressure as it stations itself across us through saturday, giving

that very strong wind for england and wales. gusts up to 40 mph in land, but further north the other tale is that because of this low pressure we have light winds and the showers will be slow moving and heavy as well so we could have further flooding heavy as well so we could have furtherflooding problems heavy as well so we could have further flooding problems as well. i can see from your face, sophie, it is not good. stay tuned to the forecast. terrible! helen, thank you. a reminder of our top story... the un says we need to eat less meat to tackle climate change as scientists warn that intensive farming of meat and dairy products is having a growing impact on the planet. the choice between broccoli and ribs on your plate has a real link to the level of global warming that we are likely to see. that's all from the bbc news at six. on bbc one we nowjoin the bbc‘s news teams where you are.

hello, this is bbc news. the headlines: high consumption of meat in the west is fuelling global warming according to climate scientist. borisjohnson has offered his seat with the to a police officer critically injured in a machete act in london. a 14—year—old girl has died and 80—year—old man is incredible condition in the hospital after three teenagers were rescued from a scene of a ship off of essex. boris johnson attempts to fast—track visas for scientists to work in britain as he is confident a deal can be done with the european union. in a moment, it will be time for sportsday, but first, a look at what else is coming up this evening on bbc news. the evening on bbc news. united nations has high consumption the united nations has high consumption of meat in the west is fuelling global warming, would