this is bbc world news. the headlines at 11. world leaders need to make life or death decisions on climate change now. a warning from sir david attenborough. the moment of crisis has come. we can no longer prevaricate. as i speak, south—east australia is on fire. donald trump has abused the powers of the presidency. donald trump's impeachment trial gets under way in the senate — the president denounces it as a hoax. what went wrong for labour at the last election. these need to look a

lot further to find the answer. one in five deaths around the world are due to sepsis according to a new study. we speak about how to spot the symptoms. and at 11.30 we will have an in—depth look at the papers with our reviewers. good evening. after this week's confirmation that the last decade was the hottest on record, sir david attenborough has warned that "the moment of crisis has arrived" for the world over climate change. in some of his strongest comments yet, sir david said that countries had been dodging their commitments for too long, and that every year that passed made it "more and more difficult to achieve" the necessary change.

he added that it was "nonsense" to suggest the bushfires in australia were nothing to do with climate change. we'll have more from australia in a moment, but first here's our science editor david shukman. a stunning view of our fragile planet, the blaze of lights evidence of the many impacts we're having on the globe. whole forests in madagascar cut down to create farmland. in germany, huge mines gouging out coal for power stations. cities sprawling into natural habitats, and all this on a scale so large that it's even changing the climate, and the world now faces crucial decisions. the moment of crisis has come. sir david attenborough tells me time is running out. as i speak, south—east australia is on fire. why? because the temperatures of the earth have been increasing. that is a major international catastrophe, and to say it's nothing

to do with the climate is palpably nonsense. and who has been affecting the climate? we have. we know that perfectly well. the biggest cause of rising temperatures is well known. burning fuels like coal gives off gases that heat the planet, and more of this keeps happening. and we're all involved in this. nearly every home in the uk is heated by a gas boiler, and they also give off carbon dioxide. the result, in a warming world, is that the level of the oceans keeps rising, which means that flooding is set to become more frequent. and life in many countries, including parts of britain, may change as well, from scenes that we're all familiar with to much more extreme heatwaves and potentially much drier landscapes like this, the mediterranean section of the eden project here in cornwall. so a glimpse of what may be in store for some areas.

the climate is already looking different. and it's striking how, over the last 170 years, the average global temperature has changed. relatively cool early on, then getting warmer and warmer until the present day. for elizabeth thompson and anyone younger than 35, temperatures have been rising for their entire lives. from when she was born in 1989, every single month as she has grown up has been warmer than the long—term average. she hopes the rise will stop, but fears more severe heatwaves if it doesn't. if we're seeing more heatwaves and more extreme events like this and they're becoming more frequent, then i'm worried that when i'm older, we won't have the capacity to deal with those, especially if they're even worse than what we've previously experienced. but i am still optimistic because we are seeing a lot of action now notjust on an individual level, but at the local, national and global.

one reason she is optimistic is the surge of climate protests by young people. and sir david attenborough is inspired by them as well. there has been a huge change in public opinion. people can see the problem. particularly young people can see the problem. and that must force governments to take action. flashes of lightning in a warming world. it's a key year for negotiations on the future of the climate, and many hope it will be a turning point. david shukman, bbc news. well, sir david talked there about the wildfires that have devastated parts of australia. hundreds are still burning, mainly across the south east of the country, where the authorities are desperately trying to prevent them from spreading further. there are at least 8 weeks of the bushfire season still ahead. clive myrie joined one fire crew in new south wales. the fires eating this land have burnt from the mountains to the sea.

in between, eucalyptus, bottlebrush and pine. it's hard, but save the forest and you save australia. man is having a terrible time trying to stop what mother nature is doing to us. but this is definitely the worst fire season that i've seen and most of my colleagues will have ever seen. you see how the wind really influences what the fire's doing. zeb is charged with protecting 2.5 million acres of forest in the state of new south wales. several villages and towns are just a few miles away, right in the path of oncoming flames. it wouldn't be that active if it wasn't so windy. zeb‘s team has already cleared some scrub, taking away fuel for the fire, but wisps of smoke are creeping through like water under a door. how long before the main firefront appears?

it's been a long bushfire season for zeb and his crew. it's 4.36 in the afternoon and we can't see anything. days bizarre when smoke has blocked out the light of the sun. and frightening days when people died. but time's running out to stop the latest blaze spreading. more of the forest needs to be cleared to create a big enough firebreak. it's a real shame to have to do this. but these fires this season are not behaving normally. and if we don't start putting these breaks in to stop it, more fires are just going to burn. a nearby backburning. zeb‘s team deliberately ignites part of the forest, destroying fuel for the oncoming monster. well, this fire was litjust a couple of minutes ago and you can see how it has taken hold, blown by these really strong winds.

and these are the conditions that the authorities have been having to deal with during this appalling bushfire season. night and day, fires are being deliberately lit by emergency crews. this, the neighbouring state of victoria. but are the latest attempts to hold back the firefront working? so that's about the last of it, eh? it's all lit up now. good job. doesn't take much, does it? well done. that's got that contained anyway. zeb and his team have won this battle, but is australia winning the war? well, we're having a go and we're steering them and at times we can have small wins. we bite off small pieces. so we're not winning, but we're not losing either. clive myrie, bbc news, in southeast australia.

our science editor david shukman is in glasgow where the un's international conference on climate change will be held at the end of the year. so david attenborough and many others are passionately hoping that this year will see some kind of turning of the tide in climate change and that is because at this summit the countries of the world are meant to come up with new tougher targets for cutting emissions of the gases that are heeding the planet. that really matters because at the moment globally emissions are still rising when claimant scientists could not be clearer that they need to fall dramatically. it must be said that there is not a great track record with these summits. the most recent one last month in madrid ended with keyissues one last month in madrid ended with key issues being kicked down the road. the burden will be on the british government in the coming months to try and get things back on track. and there is big news tonight about a move by microsoft? this is extraordinary, from the software

giant. not to come out with some distant target for cutting emissions like many other companies but actually to say that by 2030, in ten yea rs actually to say that by 2030, in ten years time, it wants to notjust be carbon neutral but carbon negative which means pulling in carbon dioxide from the atmosphere. quite how they will do that and how anyone may check remains to be seen but imaginea may check remains to be seen but imagine a flurry of announcements from major global companies of that kind in the coming months. it could possibly, conceivably, make a difference to how things turn out at the summit here in glasgow. the bbc news channel will be in glasgow tomorrow focusing on climate change and we want to put your questions on this complex issue to our experts. you can do that via twitter and you can e—mail us your questions at our

e—mail address at the bottom of the screen. please leave your name and where you are from. prince harry has appeared at his first royal engagement since he and his wife meghan announced that they'd be "stepping back" from their roles as senior royals. the prince was at buckingham palace to host the draw for next year's rugby league world cup. our royal correspondent nick witchell has more. was this harry's way of saying farewell? there he is on the sussex royal instagram account tonight. the music, the stone roses and a song which includes the lyrics "i'd like to leave the country for a month of sundays." he was at buckingham palace. in the palace gardens he had been in his element, talking to young people about sport, rugby to be precise, and those who were with harry said he was relaxed, authentic and engaged. but you didn't need to be told that, you could see it in his face and his actions. harry, how are talks going about the future? reporters tried to ask questions about his future. unsurprisingly they were ignored. the occasion was the draw for the 2021 rugby league world cup to be staged in england.

harry was being harry. well done. the old harry as someone said. he was there as patron of the rugby league, that is one of those things that the royals do. and something harry has done is highlight mental illness in sport. it's a cause which matters to him. the perception of rugby league is that you need to be tough, you can't show your feelings and you have to grin and bear it. but something like the mental fitness charter will help us make real progress in getting rid of the stigma associated with mental illness. by this time next week harry will probably be several thousand miles away, beginning a somewhat semi—detached royal life with his wife. there will be fewer occasions like this, his easy charm will be missed. i have seen some beards in my time. nicholas witchell, bbc news.

a record number of people in england and wales have been cautioned or convicted for carrying knives, according to the latest figures. the ministry ofjustice says more than 111,000 cases were dealt with by police and the courts in the year to the end of september. the government has said it wants to make tackling knife crime a priority. donald trump has been formally accused of abuse of power and obstruction of congress in charges read out in the us senate. it marks the start of his impeachment trial by the upper chamber's 100 senators, who have been sworn in asjurors. if found guilty, the president faces dismissalfrom office. mr trump is accused of secretly putting pressure on ukraine to dig up dirt on a political rival, and then obstructing the investigation. and in new evidence, an aide who was involved has said: "president trump knew exactly what was going on". our north america editorjon sopel reports from washington. across the marbled floors of congress the statues from a bygone age looking down on the team that will leave

the prosecution of donald] trump. they carry under their arms the files contain the articles of impeachment. the serjeant—at—arms will make the proclamation. all persons are commanded to keep silent on pain of imprisonment. the language may come from a more genteel era but don't be gulled, this is a 21st—century partisan scrap. house resolution 755, impeaching donald john trump, president of the united states, for high crimes and misdemeanours. the trial will be presided over by this man, john roberts, the chief justice of the supreme court. and all 100 senators, thejury, had to swear this oath. do you solemnly swear that in all things appertaining to the trial of the impeachment of donald john trump, president of the united states, now pending, you will do impartial justice according to the constitution and laws, so help you god?

ironic, given the fact it seems every senator has already made up his or her mind and will vote along strict party lines, but donald trump isn't impressed by any of it. it will go very quickly, it's a hoax, it's a hoax, everybody knows that. it's a complete hoax. but last night, an 11th hour bombshell interview from a man who had been at the forefront of outfits to strong—arm the ukrainian leader to launch a corruption investigation into the former vice president, joe biden, the central issue of this impeachment. lev parnas, who had been working alongside the president's personal lawyer, accused donald trump of being a liar. president trump knew exactly what was going on. he was aware of all of my movements. i wouldn't do anything without the consent of rudy giuliani or the president. donald trump says he scarcely knows who lev parnas is and the white house adds that this is a man facing criminal charges and isn't to be believed. but that's a slightly

awkward defence. he was certainly trusted enough to meet president zelensky on donald trump's behalf and his lawyer to communicate what it was that the white house wanted. the trial proper will start next tuesday and the fight that's about to ensue will be historic, but in keeping with the times it will also be ugly. jon sopel, bbc news, washington. the headlines on bbc news: we are out of time and while leaders need to make life or death decisions on climate change now. a warning from sir david attenborough. donald trump's impeachment trial gets under way in the senate. the president denounces it as a hoax. one in five deaths around the world are due to the life—threatening condition sepsis, a new study has revealed. we will be speaking to the uk sepsis trust about how to spot the symptoms.

let us get more on that. sepsis, or blood poisoning, now kills more people around the world each year than cancer, according to a major international study. the discovery came after researchers put together global figures for the first time. our health editor hugh pym is here. the immune system goes into overdrive, and starts attacking other parts of the body. now the first comprehensive worldwide study has revealed (ani) there were nearly 50 million sepsis cases in 2017, and 11 million deaths globally — that's more than were caused by cancer. among leading economies, there were, for example, 74.5 deaths in japan per 100,000 of the population. that was slightly more than in the uk, just under 72. dr ron daniels told me that the figures were very alarming indeed. they are alarming. this is the most robust study we have ever had on the burden of sepsis. cancer claims 926 million lives every year. this is 110w million lives every year. this is now 11 million. many of these people

will have underlying conditions, but the reality is, for many, this process is reversible. and what happens when they do go to hospital and present with this? we certainly know that up until a few years ago there was limited knowledge about this, even within the health community, within doctors and nurses and people were dying because it wasn't caught early enough. we have made huge progress in the united kingdom, in england, scotland, the other countries. we now have health professionals who are better educated around sepsis, that are actively looking for it. hospitals have been measured in their ability to spot and treat sepsis rapidly. and we have gps and other health reversals in the community who are also receiving education. so we're doing a lot better than we were still some people are falling through the net. one of the candidates for the labour leadership, sir keir starmer, has said his party's problems shouldn't be blamed on the 2019 general election campaign alone, because it had been losing support

in its heartlands for years. in the first of in a series of interviews with the labour leadership candidates, he's been speaking to our political editor, laura kuenssberg in his north london constituency. i think what labour needs is a leader who is capable of restoring trust in the labour party as a force for good and a force for change. he is the mps' favourite, but it is labour's members who will choose the next leader, the contest after a stinging defeat. you were, though, a very prominent part ofjeremy corbyn's team and it went down in a terrible defeat, so you were part of the problem. why should you be part of the solution? there are many reasons we lost the election in 2019, but we've lost four, we've lost four elections in a row and therefore identifying a particular thing in this election isn't going to help. but on two big issues, the brexit plan, you were in charge of that, and anti—semitism, racism against jewish people that the party didn't take seriously enough, you say that now, but you were in

the room at the top table. we need to understand what happened. as i said, i didn't meet anybody on the election trail who said, "everything is fine, i don't want anything to change." people were crying out for change, theyjust didn't believe our party was the party that could deliver that change. we need to unify the party and i think i can do that. we spent far too much time fighting ourselves and not fighting the tories. factions have been there in the labour party, they've got to go. i'm very sympathetic to the argument we've lost our heartlands, we've got to get them back. is a north london lawyer labour's answer? the party has lost touch with so many voters and so much of what was natural territory. it is easy to talk ideology, less so real life. you say you are a moral socialist. what does that mean in practice? what i see is inequality everywhere and you see it in every community, you will see it in these communities here, and i don'tjust mean wealth and income, i mean influence and health.

and i've never walked past those sorts of wrongs and injustices. if i was to ask you if your politics are closer to the politics of tony blair, or the politics ofjeremy corbyn, where would you put yourself on that spectrum? look, tony blair was addressing problems a quarter of a century ago and jeremy corbyn took us through four really difficult years. but it's notjust about the period of time, it's about the spectrum within the labour party. where would you put yourself on it? i want to lead a labour party that is trusted enough to bring about fundamental change. i don't need somebody else's name or a badge in order to do that. what we forget in all of this is that all the labour party, all the teams of leaders, they have to do it for the circumstances as they are. one labour party member told us on monday this week that keir starmer is very sensible, but sensible is not very appealing. do you get that? throughout this leadership campaign you are going to get different views from everybody on all of the cabinet and i completely accept that. you need someone who is able to, as it were, be capable

of being respected and seen as someone who is trustable and trusted across the whole of the united kingdom. the risk for sir keir perhaps, he may represent neither continuity nor big change, not clear in a detailed way yet what he plans to offer instead. laura kuenssberg, bbc news. people taking cocaine are putting increasing pressure on the nhs in england, according to new figures. data compiled for bbc news shows that since 201a/15 the number of hospital admissions for cocaine poisoning has increased by 76% to over 4,000. hospital admissions for mental disorders caused by cocaine went up by 70% - to 15,500 over the same period. cocaine—related deaths are also at record levels, doubling in england and wales, and tripling in scotland since 2015. here's our social affairs correspondent michael buchanan — and just to warn you, there are some distressing images in his report.

preventing cocaine from getting here is heavy work. the border force check containers, gather intelligence, seize drugs. though not this time. yet cocaine has never been more available. do you ever get impressed with some of the thinking that goes into the smuggling? absolutely. yeah, that's part of the challenge that we face as a border force is trying to stay one step ahead of those smuggling gangs. getting coke has never been a problem for lewis. most club toilets there's someone doing it. five o'clock in the afternoon, there's people doing it in the toilets. it's everywhere. the 25—year—old started taking cocaine around six years ago after a friend offered him some. it became a habit.

i basically had a heart attack, like, not...so my friends a nurse and she had a blood pressure thing on my arm and was taking my pulse. she was just like whispering, "call an ambulance." yeah, i'mjust like... my heart pounding out my chest. today, lewis only takes cocaine occasionally. the drugs appeal waned. the worst paranoia i've had in my life. i'd be sat by the window at night, hear a car pull up, like, looking over my shoulder. but more people than ever are using cocaine, enticed by different strands of varying purity. there's prop, expensive cocaine for around £100 a gram, down to as little as £30 a gram for so—called council coke. from the age of 15, we've supported people to try and help them address their cocaine use. in lanarkshire drugs worker eddie baggy is seeing ever younger people developing a cocaine problem. it's easier to buy than alcohol.

you don't need to walk into a shop to get it, and you use digital platforms to get as well, which young people are very familiar with. so online, snapchat, whatsapp, stuff like that. i remember sleeping in a telephone box, homeless, that's where drink and drugs took me. colin mcgowan is chief executive of hamilton accies football club but his passion is helping teenagers steer clear of drugs, with the help of former footballer colin mcnair. i was playing at ibrox in front of 50,000, 60,000 fans. colin discusses his footballing career to engage audiences, but he shows them his legs to emphasize his real message — the impact of a two—decade—long drug addiction. he lost everything. people that are not in addiction and not experimented with drugs, they can't understand it. "you actually threw all that away?" i didn't throw it away — caught up in addiction, you've not got a choice. your choices are taken from you. that's how strong and

powerful cocaine is. cocaine is no longer the preserve of the rich. it's now an everyday drug in britain, readily available, widely consumed, increasingly destructive. michael buchanan, bbc news. children in scotland could be banned from heading football during training because of fears over the link to dementia. it is understood the scottish fa will introduce the changes later this month after a report found that former players have a high risk of dying from the disease. english football association is a more research is needed. here is chris mclaughlin. on the outskirts of glasgow children training for the local football team will stop in a few weeks levels time these players and others under the age of 12 across scotland will be told no headers. it's all because of a study that found former players are 3—.5times a study that found former players are 3—.5 times more likely to die

from dementia. when you are older you can do it, but maybe not when you can do it, but maybe not when you are younger because you might get brain, because they are hard balls. it is a good idea. at that age they do not need to head the ball. it can be played on the ground stop by the study conducted by sainters hearing glasgow confirmed what many people feared, there is a link between dementia and football. the findings didn't show is why. at the scottish fa are taking no chances. we can't wait on the evidence one way or the other. we have to take sensible, pragmatic steps. that is largely going to be to try to reduce that overall burden, the overall number of times that players had. that is a lot to play for. john hartson. that was a massive part of my game. managers bought me because they could head the ball. i think it is the correct decision, if ultimately it will stop players, young kids especially,

getting illnesses as they get older stop by the family ofjeff astl, who died of dementia in 2002, have been campaigning for the english foot calling authorities to do more. but on heading the fa have said this, we feel it is important that we make evidence—based decisions on matters such as this. as it stands, there is no evidence to suggest that heading should be banned in youth football. tonight at a training session in north london, reaction to the news that, for now, things will change in scotla nd that, for now, things will change in scotland only. i have watched enough kids games to see that during the course of the game they do not head the ball that much. i think this good edge should not be banned up at are registered headingly ball and it is fine. when you score goals like that you are proud of yourself. the research will continue but some feel the time to act is now, as football's fight with dementia goes on. chris mclaughlin, bbc news,

glasgow. stay with us on bbc news. inafew glasgow. stay with us on bbc news. in a few moments we will be taking an in—depth look at the papers with oui’ an in—depth look at the papers with our reviewers this evening, sam liszcza, deputy political editor of the express, and the economist grace blakeley. that is coming up after 11:30pm. now though it is time for the weather. hello there. the weather is going to go from one extreme to the other in the next 48 hours, with friday being a day of transition. thursday brought more rain on a deep area of low pressure. not just brought more rain on a deep area of low pressure. notjust more rain but more wind as we saw from some of the weather what your pictures. this was the mass of cloud as it rolled its way across the atlantic. the signature kurle around the area of low pressure, tightly packed isobars keeping me winds strong through the night, the rains finally clearing southern and eastern areas during the early hours of friday morning. behind us, a di vita, sunny spells and showers. there is pretty cold.

winteriness initially in the but we could see winteriness in the showers further south, particularly on the hills. aylan thunder a possibility. -- hail hills. aylan thunder a possibility. —— hailand hills. aylan thunder a possibility. —— hail and thunder. hills. aylan thunder a possibility. —— hailand thunder. it hills. aylan thunder a possibility. —— hail and thunder. it will feel chillier than it did during the day on thursday. the wind is not as strong but blustery never showers. then it is all change for the weekend. it will become much more settled because we are changing the low pressure which has been in charge of the low pressure for high pressure. the low pressure will get steered towards the south and towards the north and an intense area of pressure will keep those weather fronts at bay for four or five days. it means we pick up cold nights. saturday starts on a frosty note from the north. the north has a chilly risk north wind and a few showers. the exception to that dry rule, plenty of wintry sunshine around. temperatures are struggling to average after that frosty start, but obviously the sunshine and

lighter winds will compensate. as we go through saturday night into sunday, a widespread trust velits under the starry skies.