a very warm welcome to bbc news, broadcasting to our viewers in north america and around the globe. my name is mike embley. our top stories: the us delays restrictions on huawei as the chinese tech company claims google‘s actions against it are based on politics and not security. they're citing this as being a security issue and it absolutely is not a security issue. this is all tied to the china—us trade negotiations. tributes to a formula 1 legend — the former racing driver, nicki lauda has died at the age of 70. scientists warn sea levels could rise twice the level predicted, because of accelerated melting in greenland and antarctica.

president trump tells his former legal advisor — don mcgahn — not to appear before congress to testify about the mueller report. and young british royals enjoy a woodland wilderness at the chelsea flower show — designed by their mother. hello to you. the us government has eased some of the restrictions imposed last week on the chinese tech firm huawei. it means service and support will continue for existing phones — although huawei is still prohibited from buying american parts and components. this global business dispute, coupled with trade tensions and national security concerns, has all been underlined by falls in us stocks. our business editor, simonjack reports. a global trade war is coming to a phone near you.

google has barred the chinese smartphone maker huawei from some updates to the android operating system. the ban means that future huawei phones won't be able to access popular apps such as youtube and google maps. existing phones will have access but won't be able to update to new versions of android, which could leave users more vulnerable to future security threats. so, what do potential customers make of that? so, if you were looking at phones and one of them came without youtube, you couldn't get youtube, you would rule that out? straightaway. straightaway i'm ruling that out. everything's at the tip of our fingertips so if something like maps wasn't available, it would make... it would seem more difficult and less accessible. today, a huawei spokesman admitted future access to some popular apps couldn't be guaranteed. it's just a question of what's going to happen in the future with updates and we're at this stage not quite sure how that is going to pan out. but in the fullness of time,

we'll be more sure. is this a security issue, or is this a trade war? it absolutely is not a security issue, this is all tied to the china—us trade negotiations, and i've every hope and every expectation that this will come to a rapid conclusion. not everyone agrees. huawei is the world's biggest manufacturer of the network equipment that promises to connect hospitals, power stations, driverless cars, and having a chinese company at the centre of that is a concern for some. security concerns first raised in the us and echoed by spy chiefs at mi6 have arguably made huawei the most important company in the world, thrust onto the front—line of a new technological and economic cold war, a cold war that's coming out of the security shadows and into our everyday lives. is this another move in a game of chess between china and the us? huawei thinks so and hopes that the tit—for—tat trade war will ultimately be resolved. but the red flag of national defence is a hard one to lower. once you start to raise

concerns about security, it's much easier to sow doubt than it is to rebuild trust. these are very complex devices, complex software, and it's almost impossible to know what they're doing in every possible scenario. the us, along with australia and new zealand, have already shut huawei out of their future network plans. the uk hasn't made up its mind yet. when the world's two biggest economies are at each other‘s throats, other governments and now consumers can get caught in the middle. simon jack, bbc news. so what does this delay mean for huawei? our tech correspondent dave lee in san francisco explains. this move has scaled back a few of the restrictions announced by the us commerce department last week, but it has certainly not made the problem go away. huawei has been granted a temporary license to buy american—made goods. but only for existing uses such as maintaining networks or providing software updates to huawei smartphones. it will last for just 90 days, however, after that a full block

will come into place — a block that threatens to completely destabilise huawei's ability to do business nutjust in the us, but globally. it can also prove extremely damaging to major us firms such as intel, qualcomm, broadcom and other chip and technology providers to the chinese giant. when huawei provided a list of its top global suppliers, 33 were american firms. they stand to lose billions of dollars if this ban is enforced in full. us intelligence agencies say such drastic moves are necessary to protect national security. china argues it's a plot to pile on the pressure during ongoing trade talks. either way, companies in both countries are set to get hit hard. dave lee, bbc news in san francisco. in the last couple of hours its been announced that the three—time

formula 1 world champion, niki lauda, has died at the age of 70. he took the title for ferrari in 1975 and 1977, and for mclaren in 1984. a family statement said he died peacefully with them by his side. the austrian was badly burned in a crash in the 1976 german grand prix. he recovered and returned to racing, but struggled with health problems. jo wilson looks back on his life. niki lauda excelled in somehow survived in a desperately dangerous era. he defied his wealthy family's orders to be are racing driver. with ferrari lauda dominated formula one. already world champion in 1975, more glory seems certain. this was his car at the 1976 german grand prix. other drivers had rescued him from the wreckage. this was lauda six weeks later, wounds barely healed, but ready to race again. he'd heard

the doctors predicted he would die from lung damage. he employed himself to fight. when that feeling can you get a big fright, you are really worried and frightened that you are going to die. and then that means you start everything possible to keep you going and you can't start your body, because the body doesn't react. you can only start the brain. you hear voices, you ask, for example, names, why is he here? the thing is to keep the brain working. if the brain works the body sta rts working. if the brain works the body starts to work sooner or later. in 1977 he was world champion again. the championship was lauda's fourth place at watkins glen in the autumn was enough to regain the world title. a staggering feet, acknowledged when the bbc reviewed it at the end of the year. only 14 months after his crash in germany, niki lauda wins the bbc trophy for the outstanding overseas personality of the year.

applause lauda was champion driver again in 1984, a victory for mclaren to go with the two title c1 for ferrari. later he held managerial roles in formula one. notably at mercedez. niki lauda live to inspire new generations in the sport which so nearly claimed his life decades before. niki lauda who has died at the age of 70. even though it's night time in europe and america the tributes to niki lauda are coming thick and fast. the former moto gp motorcycle champion casey stoner has tweeted "rip niki lauda, a true icon and motorsport legend. thoughts are with his family and loved ones at this time." this one from mclaren motorsport: "all at mclaren are deeply saddened to learn that our friend, colleague and 1984 formula 1 world champion,

niki lauda, has passed away. niki will forever be in our hearts and enshrined in our history." let's get some of the day's other news. the world food programme in yemen has warned it may have to suspend aid to millions of people on the brink of starvation. officials accuse some houthi rebel leaders, who control many areas of yemen, of repeatedly obstructing food distribution. the venezuelan president, nicolas maduro, has proposed bringing forward elections, due next year, to choose deputies to the national assembly — it is currently controlled by the opposition. he made that suggestion at a rally in the capital, an appeal court in paris has ordered doctors to resume life support for a quadriplegic frenchman — hours after medics began withdrawing treatment. his family are in dispute about what should happen. vincent lambert, who's 42, has been in a vegetative state since a motorbike accident in 2008.

severe storms with tornadoes and heavy rains took have hit parts of oklahoma and texas — with more to come. the us national weather service has issued a rare high warning for parts of those states. over the weekend, severe storms and tornadoes scientists believe that global sea levels could rise far more than predicted, due to accelerating melting in greenland and antarctica. the long held view has been that the world's seas would rise by a maximum ofjust under one metre by the end of the century. but a new study projects that the real level may be around double that figure. caroline rigby reports. these vast icy landscapes are some of the most remote on our planet, but they play a crucial role in shaping the future of life on earth. global warming is causing ice sheets in antarctica and greenland to melt, but some scientists believe climate models have underestimated the level of melting this century and, in turn, the extent of sea level rise.

now a new study drawing on evidence from 22 leading researchers has warned of the situation could be far worse than generally accepted. in 2013, the un's intergovernmental panel on climate change predicted that by the end of the century global sea levels would rise by around one metre. but researchers 110w around one metre. but researchers now suggest seas could rise by twice that amount, that's if unchecked carbon emissions because the world too warm by five celsius, other than the two degrees scenario consistent with the paris agreement. the consequences of this on coastal communities and ecosystems would be catastrophic, with the poorest countries are said to be the hardest hit. almost 1.8 million square kilometres of land could be lost and up kilometres of land could be lost and up to 187 million people displaced. bangladesh and the nile delta would be particularly badly affect did.

while major cities including london, bangkok, and shanghai would come under threat of. it's not like all ofa under threat of. it's not like all of a sudden it's going to submerge entire cities, it willjust of a sudden it's going to submerge entire cities, it will just sort of a sudden it's going to submerge entire cities, it willjust sort of start cutting away at significant parts of them. for instance, lower manhattan, unless they build defences, a good chunk of that would be underwater. yes, a good chunk of bangladesh. the dutch, who are very good at protecting themselves, would have to build fast. this is a situation we have to avoid stop by the authors of this report with the likelihood of this level of global warming and associated sea level rise at just 5%. warming and associated sea level rise atjust 5%. in essence, a worst—case scenario. rise atjust 5%. in essence, a worst—case scenario. but with such profound potential consequences for humanity, they are urging politicians to reduce carbon emissions urgently. caroline rigby, bbc news. you can find lots more coverage of climate change on our website — including this report about ice thinning in antarctica. that's all at bbc.com/news —

or you can download the bbc news app. stay with us on bbc news, still to come: a royalfamily‘s garden on show — a special preview of the chelsea flower show and the exhibition co—designed by kate. this morning an indian air force plane carrying mr gandhi's body landed in delhi. the president of india walked to the plane to solemnly witness mr gandhi's final return from the political battlefield. ireland has voted overwhelmingly in favour of gay marriage. in doing so it has become the first country in the world to approve the change in a national referendum. it was a remarkable climax to what was surely the most extraordinary funeral ever given to a pop singer. it has been a peaceful funeral demonstration so far but suddenly the police are tear gassing the crowd. we don't yet know why. the pre—launch ritual is well established here. helen was said to be in good spirits

butjust a little apprehensive. in the last hour, east timor has become the world's newest nation. it was a bloody birth for a poor country and the challenges ahead are daunting. but for now, at least, it is time to celebrate. this is bbc world news, the latest headlines: the us has delayed restrictions on china's telecoms company huawei as the company claims google's actions against it are based on politics and not security. and the former motor racing driver nicki lauda has died at the age of 70. president trump has directed one of his former legal advisers, don mcgann not to appear before a congressional committee. democrats wanted to question

the former white house counsel about whether mr trump illegally obstructed robert mueller‘s investigation into russian interference in the 2016 election. the mueller report includes accounts of phone calls in which, it's alleged, the president orders mr mcgann to have him sacked. don mcgahn is currently following the white house line. he is taking their advice that he has essentially constitutional immunity from testifying before this committee. now, another reason that people are putting forward is that, of course, he no longer works for the white house. he left hisjob in october. he now works in private practice for a law firm that has close connections with the trump re—election campaign, it's been employed by them. but there are now reports that the trump re—election campaign is employing an in—house lawyer, taking business away from them. and there is some speculation that could be a form of punishment for what don mcgahn had to say in the mueller investigation. he was a key witness for mueller.

he was with interviewed and cited some 30 times. the democrats want to get to the bottom of this question of whether donald trump did try to impede the investigation and put any pressure on mr mcgahn to fire mr mueller. so there are many questions that the democrats want to get to the bottom of, and the key question is, if mr mcgahn doesn't appear before the committee, well, what next? he could be held in contempt. and this is an issue that we've seen coming up before, but quite recently between the executive branch and congress, and if that is the case, well,

it could be another battle that goes to the courts, something which could drag on for many months. austria's far—right freedom party has seen all it's ministers resign, as the fallout grows from a corruption scandal involving its disgraced leader. a snap election‘s now been called by the chancellor sebastian kurz. bethany bell has the latest from vienna. austrian politics are in turmoil ever since this video appeared on friday. the man in the grey t—shirt is the former leader of the far—right freedom party, heinz—christian strache. in this footage from 2017, he is seen talking to a woman who was posing as the niece of a russian oligarch. he seems to suggest she could be awarded public construction contracts in return for political and financial support. mr strache resigned on saturday. but that wasn't enough for his coalition partner, austria's chancellor, sebastian kurz. he said the far—right interior minister, herbert kickl, should be sacked as well, as he was unfit to oversee the investigation into mr strache.

translation: all of this has, in my opinion, led to a conflict situation. it would have been better if, along with heinz—christian strache, the interior minister resigned as well. that would have brought a watertight resolution of this. but he didn't take this step. but the freedom party said that if mr kickl was fired, all its other ministers would quit in solidarity. mr kurz has suggested filling the empty posts with technocrats, but other opposition parties say they don't agree. translation: i had a very good and in—depth conversation with the president. i told him that, in my opinion and in the opinion of the social democrats, only an interim government made up from experts for all of the government positions, including that of chancellor, could restore calm and stability

and resolve the very tense situation in austria. and mr kurz‘s own future could be at stake. he now faces a possible vote of no confidence in parliament, a step which could lead to even more chaos. bethany bell, bbc news, vienna. ukraine's new president, the former comedian, volodymyr zelensky, has announced he is dissoving parliament and calling a snap election. shortly after the new president was sworn in on monday, the prime minister said he would resign on wednesday. president zelensky said his first task would be to achieve a lasting ceasefire in eastern ukraine. a man who climbed the eiffel tower has been taken into custody by police after reaching the top. (tx the tower and the esplanade at its base were closed after the man was spotted scaling the structure — which is 300 metres tall. the man, who has not yet been identified, clung to the parisian landmark for more than six hours. the tower will reopen to the public on tuesday morning.

eight years before the start of syria's civil war, kevin bubriski was on assignment there. he was photographing ancient monuments and the daily lives of citizens. but over a decade later, the conflict has destroyed many of the sights he captured. kevin has a new collection of black—and—white photographs, and he spoke to us about his work. i think it's maybe through my photographs from 2003 that we can more deeply appreciate what siri is. not the ghosts of the past but what syria has the potential of becoming when the dust settles and is the syrian people can embrace their incredible, deep, cultural history and let the rest of the world know about it. i am kevin bubriski and i've just published a book legacy in stone: syria in stone which looks at the cultural monuments of syria. we

spent about a week in aleppo and my story was to cover the souk, the people of the markets. and after a day of wandering the souk, i could not figure my way around it without someone's help. it is one of the largest labyrinths of someone's help. it is one of the largest la byrinths of commerce someone's help. it is one of the largest labyrinths of commerce one could imagine. a noisy, bustling place where you really had to watch where you'd step so you didn't bump into a donkey or a reporter carrying loads of goods from one place of another in the souk of aleppo was pretty much entirely destroyed in the conflict by the fighting and then by fire and bombardment as well. i have no idea what the destiny or effects of the war have been on the people in those pictures. i especially think about the young boys that i photographed. they are happily beaming in front of my lens, there is no hostility, just an openness to share who they are and so now here we are 15, 16 years

later. i wonder, and so now here we are 15, 16 years later. iwonder, did and so now here we are 15, 16 years later. i wonder, did they flee, and so now here we are 15, 16 years later. iwonder, did they flee, did they survive? that's what i wonder. i was using the camera very deliberately, especially in palmyra. i was there a few days. just to be there and walk in the beautiful landscape and choose what i wanted to frame. think of these beautiful monuments being destroyed intentionally, these are crimes against the cultural legacy of syria and just a very painful to see. it is through these photographs from before the war that we can remind ourselves of how important it is to remember the cultural history and especially for the young syrian people who can't be home now, for them to be reminded of who they are and what their deep cultural history is. kevin bubriski with those pictures taken eight years before the start of syria's civil war. nearly 170,000 people

are expected at this year's chelsea flower show, which begins in london this week. one garden — including a tree house, a stream and waterfalls — was partly designed by the duchess of cambridge to promote the mental and physical benefits of the natural world. she's already taken her children, prince george, princess charlotte and prince louie, to see her work. our royal correspondent daniela relph reports. who better tojudge mum's handiwork than her three young children? george, charlotte and louis testing out the garden the duchess helped create. louis seemed a little distracted, but from george, there was high praise. what would you give it out of ten, george? how many marks out of ten would you give it, ten being the highest? 20. 20 out of ten? ok, that's pretty good. i think mummy‘s done well. how amazing is that? have you been on here? give me a push. in recent months, the cambridge children have collected twigs, leaves and moss that were included in the design. it has been a very personal project for the duchess.

rarely interviewed, on this, she wanted to speak out. you know, there's so much that kiddies particularly can learn from environments like this. they can learn life skills. you know, anything from sort of learning empathy, from watching plants grow, to sort of physical activities and sort of climbing onto trees or onto boulders and things, sort of helps with balance and co—ordination. it's really sort of an open playground for them. it's a natural space, a really exciting space for kiddies and adults alike to share and explore, and hopefully that's what this garden brings. this is a garden filled with personal touches. the duke of cambridge chose a pine because he remembered the smell as a young boy. and there are also forget—me—nots, the favourite flower of his mother, diana, princess of wales. two local primary schools were first into the garden this morning, under the watchful eye of the duchess. oh, my goodness, there's

so many people up here! she climbed into the treehouse to chat, and even had to explain to curious minds that she would normally wear gardening gloves to protect her hands and her engagement ring. what have you been doing, lots of planting? this evening, the duchess of cambridge showed the queen around the garden, and it may have looked familiar to her, as much of it was inspired by her own sandringham estate in norfolk. daniela relph, bbc news, at the chelsea flower show. the series finale of game of thrones has drawn record viewing figures, according to hbo. around 19.3 million viewers in the us tuned in to the final episode on sunday. hbo said sunday's live television audience and viewers on its apps exceeded the previous series high of 18.4 million for the penultimate episode a week ago. the series, which began in 2011, is set among warring families in the fictional kingdom of

westeros, and is hbo's biggest hit. hello there. we've had some interesting clouds sent in to us here at the bbc weather centre over recent days. this was monday's effort from cardiff. it's a funnel cloud, a tornado that doesn't quite reach its way all the way down to the ground. and what about this beauty, from sunday, from the north yorkshire area. but what if the atmosphere had 25 times more energy built up in it, ready to be released in one violent outbreak? well, that's what we've got going on across parts of the united states at the moment, through texas and oklahoma. these storm clouds have already produced some tornadoes, and there is the potential for some of these tornadoes to become violent, wide, and have a long track along the ground. so some extreme weather

there across the united states. here in the uk, though, over the next few hours, expect a little bit more rain to come in. scotland, some damp weather here. otherwise, it's a largely dry picture, but again it's quite murky around some of our eastern coasts, with some mist and fog patches particularly again for eastern areas of scotland. so for tuesday morning, for many of us, actually, it's a decent start to the day. the winds should be light and there should be plenty of sunshine around across northern ireland, for most of england and wales. and increasingly, we'll see the skies brighten up in scotland as well. but, as that process happens, the rain eases, we'll start to see some showers breaking out, and they could turn heavy and thundery. maybe a few showers as well getting going across eastern england. otherwise it's dry and in any sunshine, it should feel pleasantly warm, given the light winds. it's a similar day for many of us on wednesday. again, a lot of drier weather around, with some sunshine. but there will be some thicker cloud working into northern scotland,

particularly the northern isles, with some rain and cool weather. temperaturesjust ten in lerwick. we might see some of that rain getting into aberdeenshire as well. but elsewhere, a similar kind of weather prospect. a few isolated showers, but it's mainly dry with some sunshine. so, the next few days, feeling warm in any sunshine. a few slow—moving showers are possible and the winds are going to stay light. but subtle signs of something of a change as we head towards thursday. we've got a weather system lurking in the atlantic, and there is a chance that we could see some of the rain brushing into western areas. a little bit of uncertainty about that, but for many of us, i think there'll be a little bit more in the way of high cloud in the sky, making any sunshine hazy. quite warm again, though — temperatures high teens to low 20s fairly widely. now, on into friday and the weekend, it looks like the jetstream is going to start moving straight across the uk, and that will tend to encourage outbreaks of rain, particularly across northern areas, so we could see some rain at times.

uncertainty in the details of the rain. cloudier and breezier, though, through the weekend.

this is bbc news. the headlines: the us has delayed for three months some of the restrictions imposed last week on the chinese telecoms company huawei, to help existing customers. the commerce department has temporarily restored huawei's ability to maintain its networks and provide software updates. but google has said it will no longer service the android operating systems in huawei devices. the three—time formula 1 world champion, the austrian niki lauda, has died at the age of 70. he took the title for ferrari in 1975 and 1977, and for mclaren in 1984. a family statement said he died peacefully with them by his side. scientists say global sea levels could rise far more than predicted, because of accelerating melting in the greenland and antarctic ice sheets. a new study projects that the real rise may be around two