hurricane, tracking north—west of new orleans with winds at 115mph. in washington, president biden received a briefing on ida at the federal emergency management agency, or fema. he made an appeal to people in the region. i want to emphasise again this is going to be a devastating, a devastating hurricane, a life—threatening storm. so please, all you folks in mississippi and louisiana, and god knows, maybe even further east, take precautions. listen, take it seriously. really very seriously. fema is sending 2,000 emergency workers to assist local authorities. for now, though, residents are on their own for the duration of the storm. nada tawfik, bbc news, new orleans. now it's time for a look at the weather with. ..

phil avery has got that for us this afternoon. hello, there is no great rush to change the overall themes of our weather over the next few days and certainly for the next few days and certainly for the rest of today are pretty much what you see through the window is what you see through the window is what you see through the window is what you keep. a lot of card out there again and for the most part dry and the best of the sunshine as has been the case recently and central parts of scotland, parts of northern ireland, western wales and may be one or two spots into the south—west. but if you are stuck underneath the cloud towards the east coast and have the onshore breeze, . .. east coast and have the onshore breeze,... the cloud really feels on across the greater part of the british isles and we will be looking at the mist or hill and neatly cloud 13 to 14 perhaps... a dull start on tuesday, a bit of brightness getting towards east anglia or the south—east, best parts of the

sunshine, or northern ireland again and then into sunshine you could see and then into sunshine you could see a 20. a drink this is bbc news. i am ben brown. the headlines: hello, this is bbc news. the islamic state group has claimed responsibility for firing rockets at kabul airport, where the us evacuation operation is drawing to a close. the rockets were intercepted by the american anti—missile system the bbc is told ten people from one family — including six children — were killed by a us drone attack in the afghan capital, kabul. the us says the target was an islamic state suicide bomber. hurricane ida has now weakened to a tropical storm, after president biden declared a major disaster in louisiana, where powerful winds and rain wiped out all power in new orleans. more paralympics success for team gb as lee pearson, andrew small andrew small and phoebe paterson

pine claim golds. british ministers and officials are taking part in international meetings aimed at defining a joint approach to the taliban in afghanistan. the foreign secretary dominic raab is holding talks with his counterparts from the g7 group of wealthy countries, and, at the united nations, france and britain are expected to propose a security council resolution calling for a safe zone in kabul to protect people trying to leave the country. let's get more from our diplomatic correspondent, james landale. james, that idea the safe zone, is that a goer, do you think? h0. james, that idea the safe zone, is that a goer, do you think? no, there is a misunderstanding _ that a goer, do you think? no, there is a misunderstanding about - that a goer, do you think? no, there is a misunderstanding about this - is a misunderstanding about this because of remarks made by the french president president macron yesterday. what is being envisaged is not a safe zone but it is about ensuring safe passage out of

afghanistan. the resolution that will be debated and voted on at the un security council later today is essentially an attempt by the international community, particularly the permanent five members of the security council including russia and china to save the taliban, look, the international community expects them to live up to their pre—existing commitment on two key issues. one is, as i say, ensuring safe passage for those who wish to leave the third countries but also ensuring afghanistan does not become a haven once again for international terrorism so, essentially, what we're seeing today is the international community trying to work out some way of acting collectively to see if they can potentially have some influence over the taliban over the coming months. �* , ., , , ., months. and partly that depends on what sort of — months. and partly that depends on what sort of taliban _ months. and partly that depends on what sort of taliban were _ months. and partly that depends on what sort of taliban were now- what sort of taliban were now dealing with, doesn't it? what is the view? as they a change taliban? is that, it is clearly the hope of western nations but actually, is

that the expectation? i western nations but actually, is that the expectation?— western nations but actually, is that the expectation? i think the moment diplomats _ that the expectation? i think the moment diplomats are - that the expectation? i think the i moment diplomats are withholding judgment on that, not least because they least mightjust don't know. the new taliban government is yet to be formulated. they haven't see precisely how it is going to work. there are different messages coming out from different parts of what is camino, clearly a complex organisation when you get remarks that sound quite moderate from some spokespeople in kabul and you hear some pretty different messages from taliban commanders in rural areas so i think at the moment diplomats are withholding judgment at this point in terms of what kind of administration is going to come out. i think clearly, though, the reality is that 20 years have passed. there are pressures on afghanistan that are pressures on afghanistan that are difference of those precious 20 years ago. i think the expectation is that, you know, the taliban will need some kind of cooperation from the international community, not least on the humanitarian fund. you know, people are talking notjust about whether you can get some

afghans out of afghanistan but it is also what access the international community will have inside afghanistan in the future to deal with all of those parts of the afghan society which at the moment are propped up largely by international fine are propped up largely by internationalfine and. is are propped up largely by international fine and. is that going to carry on? he was going to ensure the security of the un staff? aid agency staff and others were left? how is that going to operate? what is the relationship going to be with the taliban, then? that is a huge question which is yet to be resolved. , ., , ., , ., , resolved. yes, lots of questions. thank you _ resolved. yes, lots of questions. thank you very — resolved. yes, lots of questions. thank you very much, _ resolved. yes, lots of questions. thank you very much, james - resolved. yes, lots of questions. - thank you very much, james landale back on our diplomatic correspondent. the who has said the increase in covid transmission rates across europe is "deeply worrying". in a press conference, the regional director hans kluge said a number of countries were experiencing low vaccination take—up in priority populations. several countries are starting to observe an increased burden on hospitals and more deaths. last week, there was an 11% increase in the number of deaths in the region, with one reliable

projection expecting 236,000 deaths in europe by december the 1st. three factors account for this increase. the first is the more transmissible delta variant, now reported in 15 countries in the region. the second factor is the easing of public health measures and the third is the seasonal surge in travel driving a significant growth in case numbers in most countries. we are seeing a particularly steep increase in cases in the balkans, the caucasus and the central asian republics. we must be steadfast in maintaining the triple layers of protection, including vaccination and masks. vaccines are the path towards reopening societies and stabilising economies. despite this, we remain challenged by insufficient production,

insufficient access and insufficient vaccine acceptance. thousands of strokes and heart attacks could be prevented annually in the uk if diners were to replace salt with a common substitute. a study of nearly 21,000 people in rural china involved participants who had a history of strokes or were 60 and over with high blood pressure. with me to discuss this is our news correspondent simon dedman. tell us more about the study. well, this study took place over five years amongst 21,000 villagers in china. have received normal salt on the other half received a salt substitute which had potassium chloride in it as well as sodium chloride. now, afterfive years, 3000 people suffered a stroke but,

of those that had actually had the substitute salt, there were 14% fewer cases of stroke and the study has found that 30% fewer major adverse cardiovascular events took place and by the i2% fewer premature deaths. so, the researchers behind this are saying that this could if people end up switching to a salt substitute end up reducing deaths across the globe. it could run into the millions.— across the globe. it could run into the millions. what is the soap salt -- salt substitute? _ the millions. what is the soap salt -- salt substitute? does - the millions. what is the soap salt -- salt substitute? does it - the millions. what is the soap salt -- salt substitute? does it taste i —— salt substitute? does it taste like salt? the placing sodium chloride with potassium chloride. in the placing sodium chloride with potassium chloride.— the placing sodium chloride with potassium chloride. in the one that was used in — potassium chloride. in the one that was used in a _ potassium chloride. in the one that was used in a study _ potassium chloride. in the one that was used in a study in _ potassium chloride. in the one that was used in a study in china - potassium chloride. in the one that was used in a study in china it - potassium chloride. in the one that was used in a study in china it was| was used in a study in china it was around 70% sodium chloride 20% potassium fluoride. you can get the salt alternatives most british supermarkets. == salt alternatives most british supermarkets.— salt alternatives most british su ermarkets. ,., ., , , . ., supermarkets. -- potassium chloride. it is notjust —

supermarkets. -- potassium chloride. it is not just the _ supermarkets. -- potassium chloride. it is not just the sort _ supermarkets. -- potassium chloride. it is not just the sort we _ supermarkets. -- potassium chloride. it is not just the sort we put _ supermarkets. -- potassium chloride. it is notjust the sort we put onto - it is notjust the sort we put onto our food it is notjust the sort we put onto ourfood but it is notjust the sort we put onto our food but it is the salt that is in—built in some of our supermarket prepared meals we buy. that in-built in some of our supermarket prepared meals we buy.— in-built in some of our supermarket prepared meals we buy. that is what the nhs said- _ prepared meals we buy. that is what the nhs said. the _ prepared meals we buy. that is what the nhs said. the big _ prepared meals we buy. that is what the nhs said. the big differences - prepared meals we buy. that is what the nhs said. the big differences in | the nhs said. the big differences in china is a lot of people adding salt to their cuisine in the study mentioned it is different from here. the nhs suggest that around 75% of our intake of salt would beast from processed foods and for ourselves as adults we should really only be consuming about a teaspoon of salt a day, so not very much at all.- day, so not very much at all. simon, but to you- — day, so not very much at all. simon, but to you. thank _ day, so not very much at all. simon, but to you. thank you _ day, so not very much at all. simon, but to you. thank you very _ day, so not very much at all. simon, but to you. thank you very much - but to you. thank you very much indeed. from today, changes to covid travel restrictions for a number of countries will come into effect. canada, denmark, switzerland and finland are among those now on the green list. but travellers from thailand and montenegro — which move to the red list — will need to isolate in government—approved hotels. a number of councils in tourist areas have declared the summer of 2021 a bumper success,

thanks to the "staycation". at bournemouth in dorset, some hotel occupancy rates have been running at nearly 100%, whilst in wiltshire, salisbury cathedral has had double the number of visitors it had last summer. brighton and hove council says it has been a "record summer". but nearly everyone in the tourist industry is worried what will happen next. duncan kennedy reports from bournemouth. this has been the summer where we stayed and played. the south coast is just one area that's seen record numbers of tourists. the summer's gone very, very well indeed. hotels have been north of 90% occupancy, restaurants have been booming, we've had a larger number of attractions and events — they've been very popular indeed. it's been so busy, even hotel managers like 0livia 0'sullivan have helped clean rooms. so, three questions. have you had a problem with the pingdemic? yes. have you had a problem with staff shortages? yes. but overall, has summer 2021 been a success? yes, yeah.

all 32 rooms have been full all summer. but... is it sustainable? i don't know. 0nce everything else opens up, i don't know if people will come back to the uk. city breaks are also booming. here at salisbury cathedral, numbers are double last summer. has staycation saved the day for the cathedral? it's certainly made a huge difference. we're seeing people coming to salisbury and salisbury cathedral from right across the country, so we're feeling very positive about the future, but knowing that we've still got quite a long way to go. and what do visitors think about having holidayed at home this year? we thought, couple of long weekends, a night here and there. comes to just as much. i mean, it's harder work than holidaying abroad in lots of ways, but we've enjoyed it. and when the weather's kind it's a lot easier. but the issue now for places like salisbury, bournemouth and the other holiday destinations

is what happens next. as the summer tapers away they've got the autumn to think of but, crucially, they're already looking ahead to the summer of 2022 — a summer they hope will see more of us holidaying at home. duncan kennedy, bbc news. now on bbc news... it's time for click. coventry was once the heart of british automotive manufacturing, dubbed britain's motor city. but it's moved with the times.

now hosting the institute for future transport and cities at coventry university, playing an important part in the future of autonomous, sustainable and connected transport. for a few years now, we've been told that driverless cars are just around the corner. and on this programme, we've taken a few for a spin. but before they can truly become a reality, we need to know that we can trust them just as much, if not more, than a human driver. and if this driverless world comes about, it will be transformative — not just for the drivers, but also for the cities, so we may need to rethink some of the basics. we're used to a lot of congestion on our roads, but it seems here, like this model of autonomous vehicles, seems to actually overcome some of that congestion. so, we know that people spend a lot

of time driving around cities, creating congestion, looking for a parking space. with fully autonomous parking, you need fewer spaces. so that'll reduce the requirement in infrastructure and in cities for the real estate needed for parking solutions. the vehicle will literally drive itself into a car park, find its spot, recognise the white lines and pull in and park itself. clearly, the technology has come a long way, but before our streets can be filled with autonomous vehicles, the companies need to figure out how to train them and we as a society need to be confident with the rules and the choices that we allow them to make. zoe kleinman�*s been finding out more. this is what we were promised. i took a ride in this truly driverless car from russia around the streets of las vegas last year. it was both terrifying and weirdly underwhelming. turns out the car was a much more sensible driver than most humans i know.

it took me three attempts to pass my driving test — none of it was my fault, obviously! but perhaps i should have come here to cambridge, where the tech firm five has developed a sort of driving school for driverless cars. five runs endless simulations to ensure that driverless car tech responds safely to challenges on the roads. one small scenario has nearly 500,000 possible variations. like me, our virtual car doesn't pass every test first time in the simulation. any driver will tell you it's those unusual moments on the road that you weren't expecting that pose the most danger. a kangaroo runs out in front of you. what? it's happened! it prompted the firm drisk to created the world's largest virtual library of edge cases. we are creating the first true driving test for autonomous

vehicles, and the idea behind it is when autonomous vehicles are arriving in the uk, how will the government know that they are safe for uk streets? but getting the data to build the library hasn't been easy because people don't tend to report near misses. we've had stories of people driving around roundabouts and seeing somebody take the wrong turn and driving along the motorway the wrong way. 0ne individual described an experience of having sheep appearing from nowhere as they're turning a corner. this driverless car is like a bit of a hive mind. there is a fleet of them currently driving round london, clocking up hours and hours and hours of experience, which they then all use in order to make them better drivers. london—based wayve doesn't actually make its own cars. instead, it builds the brains for others. we're not going to get there by taking technology from one or two decades ago and trying to commercialise it with brute force and billions of dollars of capital. things like machine learning — this is the technology that's going to power the future. wayve's idea is that its cars record theirjourneys, share their data with a central hq

and the useful bits feed into its learning and then back out to all of the vehicles with its brains in their boots. try having a go at the moral machine — a game set up by mit scientists to explore how humans think driverless cars should react in various scenarios. warning — they're all horrible. oh, this isjust awful! you saw examples where people were willing to sacrifice poorer people to save richer people, or heavier people to save more athletic people. what i would consider to be immoral, yeah. fortunately, none of us is in charge of deciding who cars should kill, but that's not what's holding them back. when we think of self—driving cars, it's easy to forget quite how much we as humans actually do when we're driving, so the future of autonomous vehicles not only relies on navigating difficult roads,

but also reacting to new situations, and now potentially passing a government driving test. and i don't know many humans who pass their test first time. zoe there. now, when it comes to the future of transport, sustainability is key — and that's notjust on the ground. up in the skies, the race is on to decarbonise aviation. companies are looking at different ways to be able to make air travel more environmentally friendly. and marc cieslak�*s been looking at some of the more dramatic solutions. here's the problem. the environment. we as a species are negatively impacting it in lots of different ways. aviation contributes to just over 2% of global emissions. pre—pandemic, the number

was predicted to rise fast. the problem with aeroplanes are those. and the fuel that they run on pollutes the environment when it's made and when it's used, so engineers, scientists and aerospace companies are looking at ways of cleaning up the stuff that comes out of those. if we're going to allow people to keep on travelling, then we're going to have to make aircraft which are far more efficient. and so there'll be a real pressure to develop technologies, new shapes of aircraft, new propulsion systems that fundamentally reduce the fuel burn of aircraft. here at the university of cambridge's whittle laboratory, they specialise in work relating to turbomachinery. there are several projects and technologies being developed here that are considering sustainability and new methods of powering aircraft.

there's a wide variety of different projects under way encompassing different kinds of aircraft, from new engines and components for big commercial airliners to projects like this one — testing out the efficiency of distributing lots of electrically powered propellers across an aircraft's wing. so one of the advantages of electric propulsion is that rather than having one or two largejet engines, you could have many smaller electric motors powering the aircraft and they have a very similar efficiency, whether they're very small or very large, so we might see aircraft with maybe a dozen propellers in front of them and that allows us to design smaller wings and more efficient wings. solutions like this have potential for smaller, lower—range aircraft, but for bigger aeroplanes with longer range, the look and design of the outside and inside of these airliners that we're all familiar with could change, leading us to designs like this one — the blended wing. concepts like this offer big

advantages in terms of saving fuel due to the aircraft's shape, generating large amounts of lift. they also reduce noise as a result of the engines being mounted above the wing. and more recently, there are blended wing concepts exploring hydrogen as a fuel source that produces zero harmful emissions. but these radical designs, like the blended wing, come with their own issues. the technology is very important, but it's getting the infrastructure to go with that technology which would radically change on the airport level as well. it would change the fuel that implies an entire infrastructure to bring that fuel into the airport as well. they'll also do away with windows for passengers. the wing blending into the cabin means you just can't have them. instead, there's a suggestion that

passengers will have virtual screens, which should make up for the lack of a real view. well, that's where hybrid technologies come in — aircraft which look like a conventional airliner with gas turbine engines on the wings, but with an additional electric fan behind the tail. this is a concept known as boundary layer ingestion. now, boundary layer ingestion is a technology which is aimed at taking the flow that forms over the surface of an aircraft, the flow that's on the surface is what usually forms the wake behind an aircraft and causes the drag. the idea we have is to have a fan that's wrapped around the back of the fuselage and so itjust ingests all of this parasitic flow at the back of the aircraft and takes that in and re—energises it and turns it into useful thrust. time is the enemy here, though.

aerospace is traditionally a very conservative industry. can a significant amount of research and development occur in time to address the world's urgent climate issues? so ,if we're going to decarbonise aviation by 2050, then we need to get down to 19805 levels of emissions by 2030. so, if you're looking at radically new concepts, you need to be able to work in a hardware—rich environment, you need to be able to build and test a lot of things, because many of those ideas are going to fail. in the future, commercial aircraft will undoubtedly be more environmentally friendly. but we as individuals will also need to address the impact of and the amount of flying that we all make. that's it for the short version of our future of transport special.

the full—length programme can be found on iplayer, and throughout the week you can, of course, keep up with the team on social media — find us on youtube, instagram, facebook and twitter, @bbcclick. thank you for watching. bye— bye. hello. we meteorologists james from summer to autumn hello. we meteorologists james from summerto autumn in hello. we meteorologists james from summer to autumn in the 1st of september come what may with the weather. there is no great likelihood for the rest of the day for it to change your weather, whether it will remain largely dry and there will be some sunshine amidst all of the cloud. the setup is all too familiar with a big heavy of high pressure up toward the north—west of the british isles and on the onshore breeze we are still

feeding in a lot of cloud, particularly so across the parts of england and wales. the best of the sun trying to be found out towards the west of scotland. perhaps northern ireland, one or two spots in england and wales. not enough. viz that if you get the culmination of the onshore wind and a lot of cloud, my word, it is not going to feel particularly summary ahead on the east coast. 1a, 15, 16 degrees or so, the east coast. 1a, 15, 16 degrees orso, may the east coast. 1a, 15, 16 degrees or so, may be a 22 out towards the west. through the course of the night the only change, really, is that the cloud will fill in. there will be a little bit of mist and hill fog around and at its thickest may produce the odd spot of drizzle that where the cloud parts in parts of scotland and out towards the west you could get down to eight or 9 degrees. as i was suggesting earlier on, there is no radical change in the weather over the medium range. the next few days dry, mostly cloudy, the temperature is not warranting a postcard home and here we go on tuesday morning. a lot of cloud across the east. perhaps the

best of the sunshine throughout the day to the western parts of scotland, northern ireland, may be just getting across the solway firth towards cumbria and again it is best towards cumbria and again it is best to get a wee bit of sunshine across the south—eastern water but underneath the cloud out towards the north—east 15 or 16 from tuesday on into wednesday. high pressure still very much there. but subtle changes in the wind direction may disfavour a little bit more sunshine eventually getting in towards cumbria in the north west of england, scotland, faring quite nicely to northern ireland and still a fair amount nicely to northern ireland and still a fairamount of nicely to northern ireland and still a fair amount of cloud across the way to pass in england and wales in solet that same temperature set up. best of the sunshine, 20 degrees, underneath the cloud, 15 or 16. that was not cut to the chase. there is a friday, not a great deal of difference. best of the sunshine out towards the west but was the week and could be a change. i declined, first sign of rain perhaps. —— the

high declines, the first signs of rain, perhaps.

this is bbc news. i'm ben brown. the headlines: the islamic state group claims responsibility for firing rockets at kabul airport, where the us evacuation operation is drawing to a close. the rockets were intercepted by the american anti—missile system. the bbc is told ten people from one family — including six children — were killed by a us drone attack in the afghan capital, kabul. the us says the target was an islamic state suicide bomber. how... sobbing. why they killed our family, our children. seven children. hurricane ida has now weakened to a tropical storm, after president biden declared a major disaster in louisiana,

warnings of life—threatening floods and dangerous storm surges