this is bbc news. welcome if you're watching here in the uk, on pbs in america or around the globe. i'm mike embley. our top stories: in the us, the house intelligence committee releases its impeachment inquiry report, accusing president trump of putting his interests ahead of america's. he was willing to sacrifice the national security of the united states in order to get what he wanted. the two men who founded google, larry page and sergey brin, are stepping aside from running its parent company. the tech billionaire elon musk claims in court that he did not literally call a british cave diver a paedophile. and the winner is — all of them. the four artists shortlisted for the turner prize declare themselves a collective,

and the prestigious prize is shared between them. hello to you. with president trump in london at an international summit, his opponents in washington have moved against him, with the next phase of the impeachment inquiry that has the potential to remove him from office. he has described it as an unpatriotic witch—hunt, a one—sided sham. but the latest report from the house of representatives, which is dominated by the democrats, claims there is ‘overwhelming' evidence that mr trump placed personal political interests "above the national interests of the united states," pressuring a foreign government to interfere on his behalf in next year's presidential election. there is flash photography in this report from peter bowes. page after page, the case to impeach donald trump. overwhelming evidence of misconduct and obstruction, according to the house intelligence committee, which is controlled by the democrats.

after hearing from more than a dozen witnesses, the panel concluded that mr trump solicited the interference of a foreign government, ukraine, to benefit his re—election. he put personal political interests ahead of the national interest. this is the result of a president who believes he is beyond indictment, beyond impeachment, beyond any form of accountability and indeed, above the law. and that is a very dangerous thing for this country, to have an unethical president who believes they are above the law. the white house slammed the impeachment enquiry as a "one—sided sham", which had "utterly failed to produce any evidence of wrongdoing" by president trump. but the investigation goes on, moving to the housejudiciary committee, which will consider specific charges, the articles of impeachment, against the president. again, the democrats are in control,

and if, as expected, the full house of representatives votes in favour of impeachment, a trial could take place as early as next month in the senate, where the republicans are in charge. it's all in the house at the moment. and as i've said over and over again, if the house does in fact act, then the senate will be in business with an impeachment trial. donald trump has repeated his view that the impeachment enquiry is a "hoax", being used by the democrats for political gain. but like it or not, and with the president still out of the country, the process is moving quickly. peter bowes, bbc news. professor sa har aziz is director of the centre for security, race and rights at rutgers university law school. i asked her how significant these proceedings are. well, it's very significant, because donald trump is only the second president to experience or to face impeachment inquiries after richard nixon,

who resigned before any articles of impeachment were issued. and then the other two presidents, andrewjohnson and bill clinton, were the only two presidents who actually faced impeachment charges, although they were not convicted in the senate. so this is most certainly a historical moment in us history and in us constitutional legal history. it still seems very unlikely, doesn't it, that a trial in the senate, which is dominated by the republicans, that there would be a vote to impeach. but i guess the big play here is for the opinions of voters in the election next year? yes. and so the house is under a very tight schedule because they don't want impeachment to lead the headlines in 2020, which is when the election year starts for the next president. so what they are trying to do now is gain the trust of the republican voter base hopes that perhaps they can get them either to switch sides during the elections or at least put pressure on republican senators and house members in terms of seeing that

in fact, donald trump has committed high crimes and misdemeanours and has violated the constitution pursuant to article two. and so what's interesting is that the hjc‘s public hearings this week will bring forward constitutional law experts that will explain the process of impeachment, what impeachment is, what qualifies as high crimes and misdemeanours under article 2, which is arguably unusual insofar as making this case very public, rather than just proceeding straight with the articles of impeachment, which we anticipate will be issued early next week. professor, there are a couple of new lines from this report, and they it a bit harder to suggest that rudy giuliani was acting more or less independently, he was in constant touch with the white house? yes.

we don't have the full report, it's not public, but i think the facts are clear that trump used his personal attorney, among other top aides to coerce and extort, arguably, the ukrainian president to open an investigation on his political rival in the upcoming presidential elections, joe biden, and his son hunter biden in exchange for releasing military assistance for ukraine at a time when ukraine desperately needed that military assistance because it was at war with russia. this is military assistance that congress had approved and appropriated. so this is really unprecedented and it isn't a partisan issue. it's really about the president putting his own political,

partisan electoral interests ahead of national security in a region of the world that is very sensitive and on countries that are very important to us interests in europe and eastern europe in particular. professor sahar aziz, thank you very much. a big move in one of the world's most powerful tech outfits — the two men who founded google, larry page and sergey brin, have announced they are stepping down from running its parent company. they will leave their roles as ceo and president of alphabet but will remain on the company's board, still controlling 51% of voting rights. our north america technology correspondent, dave lee, has more. this move represents the most significant shake—up of leadership at google since its inception. the first time the dynamic duo of sergey brin and larry page — a legendary silicon valley partnership — won't hold important management roles in the company they founded back in 1998. in reality, though, that has been the case for some time. the public face of google has been its current ceo, sundar pichai. but tuesday's announcement makes it absolutely clear mr page and mr brin aren't running the company any more. however, while the pair are willing to sing managing duties it,

won't mean giving up their ultimate power. between them they control 51% of voting rights on alphabet‘s board. this won't change. they liken their role to being proud parents to the company, looking on with close interest and care. it means, should they feel the need, they can override any decision the new president makes little more than a parental "because we said so." dave lee, bbc news in san francisco. let's get some of the day's other news. china's foreign ministry has expressed "strong indignation" at the passing, by the us house of representatives, of a bill demanding sanctions on senior chinese officials for the repression and detention of hundreds of thousands of uighur muslims in xinjiang. the bill passed overwhelmingly and now goes to the senate for debate.

the california senator, kamala harris, is ending her campaign for the democratic party's presidential nomination. the former prosecutor says she will keep fighting for people whose voices are ignored. originally seen as a frontrunner, she has recently been polling in single digits and has struggled forfunding. the rugby union star israel folau has reached a confidential settlement with rugby australia in his unfair dismissal case. folau, a christian, was sacked in may for comments he made on social media regarding gay people and others he considers sinners. he suggested "hell awaits" gay people. both parties say they won't comment further. australia has repealed a law which gave doctors the right to evacuate asylum seekers from offshore detention centres for medical treatment. the medevac law was passed by opposition and independent lawmakers in february. but prime minister scott morrison argued that it posed a threat to national security and has now won a vote to scrap it. the bbc‘s sydney correspondent, shaimaa khalil has more

this medevac law has basically brought to the fore that extremely contentious political issue between a government and the opposition. the government is unrelenting in its policies to deter asylum—seekers we re policies to deter asylum—seekers were coming to australia by boat by sending them to offshore detention centres. there have always been doctors complaining and reports saying that there has been a medical oi’ saying that there has been a medical or mental health crisis on these islands. children as young as 11 committing suicide. that is what prompted a public outrage that is resulted in the medevac laws, essentially allowing medicos and doctors to transfer sick refugees for treatment here in mainland australia. that has always been seen by the government as a security risk, a loophole, as some of them put it, to bring people into australia via the back doors. so

even though we are talking about very, very vulnerable individuals who are sick or in need of medical treatment that is not available in these areas, here it is a very political issue about a government thatis political issue about a government that is still very insistent that it is deterring refugees to protect australian borders. for as long as the bill has been enforced, think it was about 135 refugees were brought to the mainland for treatment, is that it, is that the end their chances of treatment of the islands? it looks like it. scott morrison, the prime minister, was speaking to press a few minutes before a game to speak to you one hour. he seemed very pleased with the result today. it isa very pleased with the result today. it is a controversial results by —— because it seems to have hinged on the boat of uncontroversial mp. he said "once and for all, this repeal is shutting the door that labor has sought to open". 135 refugees were able to come into australia for treatment. that is the number we have so far. now that this law has

been repealed nobody has the chance to apply for coming here for treatment, because basically they don't have the right to any more. divisions between nato leaders have been exposed, with president trump accusing france's president macron of being ‘nasty‘ and ‘disrespectful‘, for describing nato as ‘brain dead'. mr macron defended his comments and highlighted differences with turkey, which is threatening to derail efforts to set up a new missile defence system. this report from our diplomatic correspondent james robbins contains some flashing images. buckingham palace and a birthday party for nato leaders to celebrate their military alliance and 70 years success keeping the peace through collective defence. everyone on best behaviour for the queen, but nato is a family currently at war with itself. france's president macron has been strongly critical of donald trump's isolationist role and called nato strategically brain—dead. today he stood by those remarks, even after mr trump rebuked him publicly.

when you make a statement like that, that is a very, very nasty statement to make to, including them, to essentially 28 countries. i think that, you know, they have a very high unemployment rate in france. france is not doing well economically at all. in fact, the alliance faces another far larger threat to unity — the military action by nato member, turkey, inside northern syria. turkey's president erdogan is enraged nato isn't100% supportive of his fight against kurdish troops that he brands terrorists. but president macron completely rejects the turkish position. when i look at turkey, they now are fighting against those who fought with us, shoulder

to shoulder, against isis. 70 years ago when nato was established it all felt so much simpler. the american—led alliance faced a single enemy, the soviet union underjosef stalin. it was soviet communism which eventually collapsed. nato survived, but now struggles to agree its future role. nato is the most successful alliance in history, because we have been able to change when the world is changing. that is exactly what we're doing again, and the fact is that we're doing more together in this alliance now that we've done for many decades. but that sounds far too upbeat to those leaders who think the alliance has lost its way and needs to face up to developing threats. so, what are some of those future threats nato has to face? well, still from russia and there's talk now of china, too, not an adversary, nato insists, but a worry, nevertheless. and there is concern about possible future cyber attacks on satellites in space. how would nato react to that? president trump is now claiming success, pushing other states to increase their nato spending

and so reduce america's 70% share. but other splits over the way ahead won't be resolved in a few hours of formal talks tomorrow. james robbins, bbc news, buckingham palace. stay with us on bbc news. still to come: empowering communities in africa, the simple device that delivers the data to fight pollution. it's quite clear that the worst victims of this disaster are the poor people living in the slums which have sprung up around the factory. i am feeling so helpless, that the childrens are dying in front of me and i can't do anything.

charles manson is the mystical leader of the hippie cult suspected of killing sharon tate and at least six other people in los angeles. at 11am this morning, just half a metre of rock separated britain from continental europe. it took the drills just a few moments to cut through the final obstacle. then philippe cozette, a minerfrom calais, was shaking hands and exchanging flags with robert fagg, his opposite number from dover. this is bbc world news. the latest headlines: the us house intelligence committee has released its impeachment inquiry report, which accuses president trump of putting personal gain ahead of the american national interest. the white house says there is no

evidence of any wrongdoing. the co—founders of google, larry page and sergey brin, are stepping aside from running the company they built into a giant of the digital economy. elon musk, the billionaire founder of electric car company tesla, has told a court he did not literally call a british cave diver a paedophile. the tech billionaire, seen here, told the defamation trialjury he was simply defending himself from unprovoked insults. the spat with vernon unsworth took place as the diver was helping rescue young soccer players trapped in a cave in thailand. sophie long has more. well, the first opening statement came from vernon unsworth‘s lawyer, the man leading his legal team. and he told the court all about that rescue that you talk about, the rescue that really captured the world's attention, and how that despite that, when the world was celebrating, vernon unsworth had gone on television and given an interview in which he was asked about elon musk‘s attempt to help, the submarine, the mini—submarine

he offered, and how he had dismissed it in that television interview as a pr stunt. he then talked about the tweets, the succession of tweets that came from elon musk later, and he said that the particular tweet in question in which he called vernon unsworth "pedo guy" was very damaging. he talked about how he felt the shame of being accused of being a paedophile, at what should have been one of the proudest moments of his life. we then heard the lawyer leading the defence, elon musk‘s lawyer. he gave a very different picture of the same series of events. he said that this is a case about an argument between two men trading insults, and he said that it was vernon unsworth who went on television first, and he made the first insult. and he said it was not an allegation of a crime, it was that — an insult. he also said that that tweet was deleted. he said it was a joking, deleted, apologised—for tweet. there was no damage caused. he went on to say that, instead of damage caused to his life, that was set out by vernon unsworth‘s lawyers,

actually it had expanded his social media profile, and he now needed an agent to deal with all the requests. so two different accounts of the events that led up to this case. a new study says the growth in global co2 emissions has slowed this year, largely because of an unexpected drop in the use of coal. the report, issued at the climate change conference in madrid, says the overall rise in carbon dioxide levels will be 0.6% this year, down from 2.1% in 2018. but experts are warning that the drop in coal is offset by the strong growth in natural gas and oil consumption. one of the consequences of carbon emissions is air pollution. it is thought to kill around seven million people across the world every year, according to the world health organization. one group of african scientists is trying to alert people to the problem with a low—cost sensor that allows citizens to monitor and record the air quality in their community. solomon serwanjja reports from nairobi. tina and her one—year—old daughter clarissa live next to a steel mill in mukuru, a pollution hotspot

on the edge of nairobi. the white, powdery ash from the mill has to be washed away every day. the particles and some other black smoke that normally comes out, that is the worst thing. when you breathe those particles, it's so painful. at this local clinic, the number of cases of pneumonia, asthma and chest infections has doubled in the last 12 months. the world health organization recognises air pollution as one of the causes. cecilia can hardly breathe, and this woman's lung capacity is not what it should be. there are nearly 750,000 people living in this community, and many of them are struggling to breathe because of the air quality. there is a team of african scientists who have come up

with ways of measuring the air quality here, and they think that it is a step forward in finding a solution to this problem. these low—cost air pollution sensors are easy to install. they detect and record the amount of dangerous small particles in the air. that data is then transmitted to a website, where it can be accessed by anyone for free. our data is accurate, which means anyone in any city across any african country will be able to use it, deploy it, and get real—time local data for their neighbourhoods, that they can use to petition governments to solve problems that they face around air pollution. that is what the community living next to this asphalt factory did after they started having breathing problems. they installed sensors in their homes. our campaign got the attention of the media and the government agencies that were ignoring us before.

the director of the environment agency came over and instructed them, the factory, to shut down, and only open after they complied with the laws. another part of town, rashida and nazir, who like tina live near a steel mill, are still mourning their two—year—old daughter who died in april. the cause of death was a respiratory disease, and the doctors say it could be caused by air pollution. now, they are worried about their surviving son. look at all these inhalers. i have to use this. the doctors are wondering. you know, this is too much for him. he is coughing. when he coughs, he coughs for a whole week. nazir believes that the data from the sensors in his community will help his campaign for clean air. data will not lie. sensors will not lie. it's very clear. all you need to do is use

that, and you will get the answers you need. that's all we need. their hope is that this technology will empower communities like tina and clarissa's to fight for their right to clean air. the winner of this year's turner art prize has been announced here in london. or really that should be "winners". because for the first time, the prestigious prize was awarded jointly to all the artists who'd been nominated. rich preston has the story. the british seaside town of margate was the backdrop, and the traditional fairground park dreamland. now in its 35th year, the turner prize is known for its shock value. damien hirst‘s nomination in 1982 of a tiger shark in formaldehyde was one of the decade's most controversial pieces of art.

in 1999, tracey emin‘s work my bed caused a storm, though it didn't actually win. but this latest shock wasn't anything to do with the art itself. here's something quite extraordinary. at a time of political division in britain and conflict in much of the world, the artists wanted to use the occasion of the turner prize to make a strong statement of community and solidarity, and have formed themselves into a collective. applause. the four nominees wrote to thejudges explaining that their art is about social and political issues. lawrence abu hamdan‘s work recreates the noises inside a syrian prison. oscar murillo's is a congregation of human effigies.

while tai shani's is described as a feminist fantasy beyond patriarchal limits. and helen cammock produced a film commemorating the role of women in the northern irish troubles. we each work with specific issues. we're each dealing with things we feel passionately about, but it doesn't mean that those things, we see them in separation from each other. for us, it was important to use this platform in a specific political moment and kind of do something that would go beyond just the normal thing that happens in this prize, really. in their letter to judges, the nominees said it would feel problematic to be pitted against one another, asking if, at a time of so much division, they could instead be considered as one. the judges unanimously agreed. more on all the news on the website

and twitter. thank you for watching. hello there. we've got quite a mixture of weather coming our way for wednesday. now, the satellite picture shows a stripe of cloud approaching the west. this is a weather front that's going to be bringing us some rain. further east, though, we're under the influence of high pressure across much of england and wales, so the skies relatively clearer. now, if you're heading outside over the next few hours, we've got cloud and rain encroaching across western scotland and northern ireland. further south and eastwards across england and wales, there are some patches of cloud, but we've also got some clear spells. so contrasts in temperatures — it's mildest towards the north—west of the uk. with the clearer skies across england and wales, it's cold, and indeed, cold enough for some patches of frost.

could even be the odd fog patch to start the day on wednesday, as well. for many, though, it's a bright start across england and wales, eastern areas of scotland. the rain in the north—west will continue slowly pushing its way eastwards, reaching parts of northern england and north wales through the course of the afternoon. still bright to the south and east, but it's chilly still. highs of around 6—8 degrees. the mildest weather towards the north—west, with blustery showers following into western scotland, and some fairly gusty winds too. then, through thursday and friday, we're going to see weather fronts really target western scotland, bringing large amounts of rain here. now, we could see around 70—80 mm, maybe more than that over the high ground. that's enough to cause some flooding impacts, but it's not the only place that will see rain. on thursday, we'll also see some wet weather pushing in across northern ireland. the rain getting into northern england and north wales, too. further south and eastwards, probably a bit more cloud around, but it should be bright enough. it's turning milder as south—westerly winds spread in across more of the country. high for most between 9—12 degrees. what follows thursday night will be a very mild night. now, that might come as something of a surprise, especially when you consider recent nights have seen some very sharp frosts.

as we head into friday morning, these are the kind of temperatures —11—12 degrees. now, the reason it's so mild is it's cloudy, it's wet and it's windy, and initially we have the winds coming in from a south—westerly direction. later in the day we'll start to get north—westerly winds following in across the northern half of the country, and so temperatures will be dropping away. highs of seven degrees in stornoway. mild day for the midlands, east anglia and southern england, temperatures here around 12—13 degrees. now, the weekend looks like this. a ridge of high pressure to start things, but sunday sees a weather front move in across the uk. so saturday looks at the moment to be the better of the two days of the weekend, where it should be largely dry and bright. perhaps a bit of rain, though, getting into northern ireland later in the day. sunday looks like it will turn more widely unsettled, with rain at times. that's your weather.

this is bbc news. the headlines: the democrat—led us house intelligence committee has released a report setting out its case for impeaching president trump. it accuses mr trump of obstructing justice and congress, and soliciting the interference of a foreign government — ukraine, to help his re—election next year. the white house denies the accusations. the co—founders of google, larry page and sergey brin, are stepping down from their roles as chief executive and president of its parent company, alphabet. they said they believed it was time to assume the role of proud parents. google's ceo sundar pichai will now run both tech firms. for the first time in its 35 year history, britain's prestigious turner prize has been awarded to all four shortlisted artists. the decision was prompted by the artists themselves, who declared themselves a collective. they said that they wanted to make a statement of solidarity and multiplicity.