a planet in peril: scientists issue their starkest warning yet about the dangers of climate change. in a dramatic report, they say the world is on course to miss its target for keeping down global temperatures. countries need to up their ambition and get moving now with climate change action, if we're going to keep 1.5 degrees within reach. we'll have the latest from our science editor in south korea, where the un report's been published. also this lunchtime... four sisters are feared dead after a limousine crash in america that's killed 20 people. downing street appears to play down reports the brexit talks have made significant progress. the riddle of the missing chief of interpol — now the chinese authorities say he's being investigated for bribery. and why many young people can't afford to buy a new home, even when they can afford the deposit. and coming up on bbc news... wales forward gareth bale is among

the first to be nominated for this year's ballon d'or — the prestigious award for the best player of the year. good afternoon and welcome to the bbc news at one. scientists have issued their starkest warning yet about the danger of climate change. in a dramatic report, the un's intergovernmental panel says the world is nowhere near its target of keeping the rise in average global temperatures to 1.5 degrees celsius. instead, it says we're heading for an increase of three degrees from pre—industrial revolution levels. the report says that just to stay on track would require "rapid, far reaching and unprecedented changes to all aspects of society". our science correspondent victoria gill has this report. pictures of a warming world.

scientists are more confident than ever that the impacts of climate change are playing out now, in the severity and frequency of droughts, storms, and other extreme weather events. and, having gathered in the south korean city of incheon for the past week, climate change researchers and government delegates hammered out the final details of a dramatic report outlining the consequences of a global temperature rise of more than 1.5 degrees, and a plan for precisely how that can be prevented. so, the scale of the changes that we are experiencing in the climate system is unprecedented. the scale of the changes that humans would have to implement in order to keep climate change under control is unprecedented. so it's a challenge for human civilisation, and this report is therefore a milestone in conveying that message to human society. countries need to up their ambition and get moving now with climate

change action if we're going to keep 1.5 degrees within reach. with no action, the world is on course to breach this crucial target by as early as 2030, compromising the very livability of our planet. hitting two degrees would mean coral reefs would be largely wiped out. melting polar ice means global sea level rise is projected to be around ten centimetres more if we allow warming to go to two degrees. keeping it to 1.5 means 10 million fewer people exposed to the risks of flooding. but this plan is ambitious and will be expensive. renewable energy sources will need to provide about 85% of global electricity by 2050. currently, they account for about 25%. the renewable energy revolution that we've already seen unfolding around the world is going to be the key to the solution that starts from the energy sector and spreads to other sectors. i think we can definitely still do this, if we decide that that's what we want to do.

even with a green energy revolution, this most comprehensive assessment of the perils of climate change concludes that every one of us will need to make changes in how we live our lives. changes that have to start now. victoria gill, bbc news. well, today's report has been described as a global wake up call for the planet. so, what do governments and individuals around the world need to do to limit global warming? 0ur science correspondent pallab ghosh reports. the ipcc has warned of two possible futures for our planet. in the two degree world there is severe drought, more flooding in the northern hemisphere, people are poorer and have less food, and all the coral in our seas has gone. as things stand, that is the world we are heading towards, the scientists

are heading towards, the scientists are warning. one of the clear m essa 9 es are warning. one of the clear m essa g es of are warning. one of the clear messages of this report is that inevitably, at the rate we are going, it is quite likely we will release too much carbon, burn more carbon than we can afford to burn if we are going to stabilise temperatures at 1.5 degrees so we have to work out how to get rid of carbon dioxide. to avoid damaging global warming, the scientists are calling for much more renewable energy. the development of transport that uses less fuel, and new ways to ta ke that uses less fuel, and new ways to take carbon dioxide out of the atmosphere. all of that is happening, but not, according to the ipcc, at the speed it needs to. the scientists are saying to everybody we have to accelerate our action to tackle climate change, because if we don't, by the middle of this century, we could be facing a situation we will not be able to cope with. at a time when china and india are growing their economies, the planet's net emissions of c02

needs to be zero by 2050 to prevent a two degree world. up to 7 million square kilometres of land will be needed for energy crops around the size of australia, and the technology needed to remove enough carbon from the atmosphere has not been developed. the report is important because it also shows there are options we need to take, it shows it is possible to limit global warming to 1.5 degrees if we have great transitions across the economy, if we change the way we behave such as eating less red meat and more vegetables. with the backdrop of president trump taking the us out of the climate change agreement, avoiding climate change will be difficult but not impossible. the question is whether national leaders have the political will to bring about the changes recommended, or it will be too little, too late. pallab ghosh, bbc news. 0ur science editor david shukman

is in incheon in south korea where that report was published. david, a pretty dire warning for the planet? that's right. it is dire and quite startling to see the blunt language they have used in this report. i have read many of these things over the years and they are usually much more cautious. 0ver the years and they are usually much more cautious. over the years there has been a sense that global warming wasn't really a problem, the worst effects wouldn't kick in until the later part of this century. this report shows that even another half a degree of warming takes you into dangerous territory, particularly in developing countries where people are most vulnerable to the impacts with heat waves and flooding, and that prospect is not beyond the horizon. it is actually within touching distance, maybe within the 20305 touching distance, maybe within the 2030s and that changes the way

people will start to think about this whole issue. it is not something that can be kicked down the road. i think the other big summer the road. i think the other big summer startling angle is the way the scientists have framed what needs to happen. this is something that needs urgent action right now, and touching every aspect of society. it is not enough for the power stations to stop using coal and switch to some other form of fuel which is cleaner, or even to switch to renewable energies. they have to do more as well with transport, the way we heat our homes, the way we get around. even thatis homes, the way we get around. even that is not enough, the scientists are saying we have to full carbon dioxide out of the air with forests and new crops. this is a massive challenge for the whole world. david, thank you very much indeed. 20 people have been killed in new york state after a stretch limousine crashed into another vehicle. it's thought to be one of the worst road accidents in american history: two pedestrians and all 18 people

in the limo died, local reports say the victims included four sisters who'd been on their way to a party. sophie long reports. it was amy steinberg's 30th birthday. here she is on the right with her three sisters. 16 of her friends and family climbed into the limo to celebrate. among them was her husband, axel. none of them survived. amy died alongside her three sisters, their mother lost all four of her daughters. i don't know how to say it. you can't wrap your head around such a tragedy, where you have... four of your daughters die. they were very smart and they were beautiful and... they were... they lived life to the fullest. i don't know what to tell you except they were the best nieces anybody could have. this is where the accident happened.

it's thought the limo failed to stop, veering out of control and ploughing into a cafe, hitting and killing two pedestrians. this is one of the biggest losses of life we have seen in a long, long time. the most deadly transportation accident in this country since february 2009. it's still not clear why the driver apparently lost control or the exact cause of the accident. an investigation is now under way. the victims won't be officially named until all of their families have been informed. sophie long, bbc news. downing street says that big issues remain to be worked through in the brexit negotiations with the eu, and that more movement is required from brussels. number ten appeared to play down recent reports the talks have made significant progress in recent days. 0ur assistant political editor norman smith is in westminster. we've been hearing positive noises from brussels for days now,

but a more cautious analysis today from downing street? you sense that number ten have got out the fire hose and they are desperately trying to hose down speculation that mrs may is pretty much on cruise control to secure her brexit deal. this after we had a whole host of eu politicians coming out and making increasingly optimistic noises about the prospects for an agreement. this lunchtime however we had downing street pretty much going... 0h lunchtime however we had downing street pretty much going... oh dear, this will be very difficult. saying in effect that the issues remain. we needed the size details about the nature of our long—term trade arrangements and there wasn't much point in the brexit secretary dominic raab going to brussels this week because still some way off an agreement. you sense what is going on is notjust an acknowledgement

that there are difficult issues still to solve such as the northern ireland border, but there is still a desire is it worth to roll the pitch to quash the idea mrs mayjust has to quash the idea mrs mayjust has to turn up in brussels and it is easy, and a deal can be done. rather, number ten would like her to go and be seen to be battling and fighting and struggling to get a deal so she comes back metaphorically bruised and battered, clutching a piece of paper saying, i have clawed this out of the hands of russell ‘s! in the hope that will convince sceptical mps this is a deal russells didn't want to give us and is good for britain. norman, thank you. the chinese authorities say that the the former head of interpol, who disappeared two weeks ago, is being investigated for bribery. but it's not yet clear where meng hongwei is being held or exactly what he's alleged to have done. yesterday, mr meng's wife revealed he had sent her an emoji of a dagger, suggesting he was in danger. john sudworth is in beijing. what is the latest? given that

interpol specialises in tracking suspects across international boundaries, it is remarkable of course that interpol‘s president has gone missing on a trip home to china. we are now getting more details from china, slowly, and very limited, but he is being investigated for corruption. at the foreign ministry briefing today, when asked whether he faces formal arrest, when asked if he will be given access to a lawyer, there were no direct answers. that raises concern, that this take—down, like so concern, that this take—down, like so many others, are as much political as criminal. so what do we think will happen to him next? his fate is almost certainly sealed. just reading some of the statements

coming out of some parts of the chinese government. what's interesting is looking ahead to what this might mean for the international community, particularly bodies that have chinese officials on them. mr meng's appointment was seen as a sign of china's growing global clout and his take—down must be seen as a sign of china's communist political system at home and people will be wondering hushed— if it can happen to him, it can happen to anybody. a coroner has named a second person who died from a suspected allergic reaction after eating a sandwich bought from pret—a—manger. celia marsh, who was 42 and from wiltshire, died in december last year afterfalling ill in bath. the chain says contaminated yoghurt supplied by a third party was responsible for the woman's death. the company involved, coyo, has strenuously denied the claim. news of her death followed the inquest into the death of 15—year—old natasha ednan—laperouse

who died after eating a pret baguette. one of britain's most senior police officers has told the inquests into the westminster bridge attack how he stayed in his car as pc keith palmer was stabbed to death, because he had no protective equipment. sir craig mackey, who was acting chief of the metropolitan police at the time, told the hearing he was at westminster for a meeting when he saw the unarmed constable being attacked. helena lee is at the old bailey now with the latest. this is the first time we have heard sir craig mackey‘s account of what happened on that day. he came out of the meeting, got into the passenger seat of his driver's car. they drove around new palace yard towards the

gate where keith palmer was on duty and then he told the court he heard and then he told the court he heard a loud bang which sounded unnatural to him. then he and said he saw people running and described to the inquest how he saw a large male coming forward with a knife, he said it looked like one of those out of a carving block. he said because they didn't have any protection in the car, they decided to lock the doors and then in front of his eyes he saw khalid masood stabbing pc palmer. he said it was two absolutely determined stab wounds, and then said khalid masood came right past the drivers side of the car he was in and next thing he heard were the gunshots of harry two being shot dead. sir craig mackey also said it was his instinct to get out of the car to help the offices but he was

told by an officer nearby that they had to leave the scene. thank you. a woman who lived on the 11th floor of grenfell tower has recalled the moment she tried to escape the burning building with her elderly father. nadia jafari, who became separated from her father in the darkness, told the inquiry that she believed her father had got out alive, but later found out he died. our home affairs correspondent tom symonds is at the inquiry for us now. nadia jafari was attempting to get out of the tower using the lift, which went from the 11th floor to the tenth floor and stopped, then the tenth floor and stopped, then the doors opened and the whole of the doors opened and the whole of the lift was filled with thick black smoke, and those inside found it difficult to breathe. nadia jafari said she could not see. then the doors closed again and the lift

carried onto the ground floor. at the ground floor she got out of the lift as you can see in the pictures on cctv, and you can see the black smoke is almost pursuing her out of the door of the lift. at that stage she believed her father the door of the lift. at that stage she believed herfather had got out ahead of her so she went out to look for him, realised he wasn't there and tried to get back into the building to find him. she wasn't able to do that, partly because the door to the lift was locked and secondly because she was stopped by the police. it turns out she thinks her father got out of the lift on the tenth floor in the smoke and his body was found after the fire. nadia jafari told the inquiry, no one deserves to die in that way. thank you. our top story this lunchtime. a planet in peril: scientists issue their starkest warning yet about the dangers of climate change. and still to come...

after two recent deaths of children using bouncy castles a bbc investigation finds more than 20 people across the uk have been hurt or seriously injured while using inflatable play equipment. coming up on bbc news... after starting the year at world number 50, british number one kyle edmund has reached a career—high of 1a in the latest atp world rankings. scotland's first minister nicola sturgeon says she wants people across the uk to have a chance to change their minds on brexit and has been giving more detail on her party's support for another referendum on leaving the eu. nick eardley reports. the people of scotland didn't vote for this tory government, they didn't vote to having a referendum on leaving the eu,

they didn't vote for breakfast... they didn't vote for brexit, either, but as leaving gets closer, the snp is grappling with what to do. independence is the goal, eventually. but nicola sturgeon is also hoping the rest of the uk might have a change of heart. if that opportunity presents itself, i don't think it would be right for us to stand in the way of people elsewhere in the uk getting the chance to change their minds. and it would also, i think, of be odd for us to not grasp an opportunity for scotland to reaffirm its vote to remain in the eu. not a perfect solution, the first minister says. what if scotland voted again to remain in the uk, to leave? many here are desperate for independence to be an option, too. the first minister has been cautious but promises movement, soon. i think there will be an independence referendum, but in terms of when it's right to have that, when people will have the clarity to answer some of the questions, to have answers to some

of the questions that are shaped by the nature of that future relationship requires greater detail than we have just now. ultimately, everyone here wants independence. but miss sturgeon is ready to ask the question again for 110w. ready to ask the question again for now. another eu referendum is an option, albeit one the snp knows it won't control and might not deliver the result it once in this brexit era. easy answers aren't easy to come by. around 40% of young adults in england cannot afford to buy the cheapest houses in the area they live even when they have a 10% deposit. that's according to a new report today. the institute for fiscal studies say house prices have risen by 173% in two decades, far outstripping growth in pay. here's our personal finance correspondent simon gompertz. every home has an owner, but often now, it's someone older

renting to young tenants, who can't afford to buy. in her 20s is florence, who lives in reading and feels she's effectively been shut out from purchasing a home. i don't think i'll ever be able to get on the housing ladder based on my own income and my own salary without the help of parents or my partner, because of the area of the country that i want to live in. these house prices are just driving up and up and rental prices are driving up and up. one idea the chancellor may be considering for his budget is to make it easier for tenants to buy the homes they're renting by giving them some of the capital gains tax, which the owner should have to pay on selling and refunding the rest to the owners themselves. the aim would be to change the situation in which just 61% of young adults with a deposit already and with a mortgage of four and a half times their salary can afford to buy the cheapest home in their area. it may sound like quite a lot, but it compares with 93% of

young adults in the same position who could afford to buy, two decades ago. it's true that some 20 and thirtysomethings prefer to rent. but the majority dream of owning their own home. there are no easy solutions, but for a government that really cares about increasing home ownership, the key is to increase the supply of homes and the responsiveness of construction to demand. the government needs to facilitate more house—building in places and areas where people want to live and in particular in the south east part of the country. and this is about people who can get together a deposit. many others are struggling to do that. because so much of their earnings go on high rents. simon gompertz, bbc news. a bbc investigation has found that the deaths of two young girls who died while using bouncy castles and inflatables were not

isolated incidents. the inside out east programme has found that more than 20 people across the uk have been hurt or seriously injured while using inflatable play equipment since 2011. david whiteley reports. this is the day a bouncy castle ripped from its moorings and blew across a park, killing seven—year—old summer grant. this was two years ago, in essex. we've discovered it's not an isolated case. 21 people have been hurt or seriously injured since 2011 by castles that have hurled them into the air. another victim, also called summer, had just come through cancer treatment. i was at this gala thing and i asked if i could go on the bouncy slide with my friends. i went on it and i was halfway up the stairs and my friend was just coming down the slide and it flew up and she just got off it and i was up in the air.

summer suffered head injuries and a broken thigh bone. her parents, karen and chris, feel the castle should never have been put up in the first place. he should never have put it up and running. if he had done his checks to do with the wind and the regulations of... if the winds are a certain speed, i'll have to take that down. clive ellis is an inspector for pippa, a scheme set up by the inflatable play industry, to ensure standards are met. he demonstrates what happens when a bouncy castle is used in high winds. from the front, even though it was way over the 24 miles an hour, i was quite surprised at how easy it lifted. we stopped our experiment under a0 mph. the day summer grant died in harlow, the wind had reached 36 mph. as for summer, the health and safety executive's report

concluded the inflatable was blown across the park because wind speeds were in excess of the maximum. but no—one was prosecuted. and in karen and chris' view, the hse is not being rigorous enough. accidents will happen. we understand that. but accidents when inflatables fly away should never happen. the hse could not tell the bbc the number of spot checks it has carried out, but says it customarily turns up to theme parks and fairgrounds unannounced. as for summer, she made a full recovery, but won't be going near a bouncy castle ever again. i don't really want to go on bouncy slides again, because, like, i don't really like them any more. david whiteley, bbc news. and viewers in the east of england can see more on that story on inside out tonight at 7.30 on bbc one. viewers in the rest of the uk will be able to watch the programme shortly aftewards via the bbc iplayer. in brazil, the far—right candidate,

jair bolsonaro, has won the first the former army captain, who wants to reinstate the death penalty and has called for more relaxed gun laws, failed to reach the 50% threshold for outright victory, so he'll have to fight a second round at the end of the month. katy watson reports from brazil. in these, the most uncertain elections in decades, brazilians queued up to cast their vote. jair bolsonaro was so confident he was going to claim victory in the first round, he told his supporters they wouldn't need to turn up for the second round — everyone could go to the beach instead. but he'll have to delay his trip to the seaside, the second round is expected to be tight. in three weeks' time, he'll face rival fernando haddad. as he arrived at the polling station, his opponents banged their pots and pans in protest. while party faithful sang their support.

mr haddad warned of the dangers that brazil faces. translation: brazil is running a big, unnecessary risk of throwing away the past 30 years of democracy. this country, though, remains deeply divided. on one side, there are millions desperately worried about a far—right politician like bolsonaro ruling this young democracy. but for millions of others, it's a risk they're prepared to take, to make sure the workers' party never rules again. speak to people here and you get a real sense ofjust how angry brazilians are. the desire for change and something different. even if that means an untested candidate, an unpredictable candidate. many people are willing to give it a go. he's a nationalist. he is trying to implement, here in brazil, kind of the same thing donald trump is doing in the us. he is fighting against the deep state. against political correctness. he's also a candidate who divides, who has made sexist comments, racist comments and there's a concern, perhaps, he's not

going to rule for every brazilian. i don't think so about him being, like, xenophobic or sexist. it's all about feelings, right? but facts don't care about feelings. prove me he's being xenophobic and racist. everything that has been said about him being a racist is fake news. despite all the criticism of widespread corruption and economic mismanagement, for many, the workers' party is still widely loved. especially in poorer parts of the country. translation: they did a lot for brazil. i've travelled all over this country and i've seen the poverty that existed before. on sunday night, both candidates celebrated their first—round win, but they'll spend the next few weeks intensifying their campaign, trying to win over millions of brazilians who are extremely concerned about the country's future. katie watson, bbc news, sao paulo. dame barbara windsor has been speaking publicly about dementia for the first time

since she was diagnosed with the condition. the former star of eastenders and the carry on movies called on people to run next year's london marathon in aid of a campaign to raise funds for more research into dementia. this year, i'm asking you to make a stand against dementia. use your place to run for the dementia revolution, for alzheimer's society and alzheimer's research uk. support ground—breaking research to find a cure for a condition that affects so many people, like me. time for a look at the weather. here's tomasz schafernaker. i got some good news today. it is going to get a storming towards the end of the week but before that, we are