to announce a temporary visa scheme to make it easierforforeign lorry drivers to work in the uk. two canadians are heading home after spending over 1,000 days in detention in china over spying charges. prince andrew's us lawyers accept he has been served with legal papers alleging that he sexually assaulted virginia giuffre. he denies all allegations. hundreds pay tribute to murdered primary school teacher sabina nessa at a candle—lit vigil. it's the final day of campaigning in germany, where voters will elect a new chancellor tomorrow. now on bbc news, it's time for click. this week, the plant with a secret in its seeds, a plane that can fly itself and dinner is served and it

is... an acquired taste. in the middle of the otherworldly landscape of iceland, something strange is going on. 130,000 barley plants are slowly making their way from one end of this greenhouse to the other. and what's even stranger is what this barley is going to be used for. it is in the food chain but it's not food for us and it's not food for animals, no. this is something much,

much weirder than that. this grass is a host. it's been genetically modified to carry a special protein called a growth factor in its seeds. once the plants reach the end of their journey these seeds are harvested, milled and purified and the resulting growth factor protein can be used to help produce something very unexpected. meat, in a lab, without the animals. i think we will reach the point where it's not, like, nice to have. i think we have to have it. the earth is not going to grow, we're not going to get more agriculture area, the population is rising, and we have to feed all of the people. the argument for growing meat in labs without living animals is that the process will eventually require less land, less energy and produce less harmful waste.

and it takes more agricultural land to grow feed for the animals that we eat. we are are essentially bypassing that. so we don't have to kill all these animals, we just have to take the stem cell from them and i think this is a more viable and more environmental, much better option. companies using cow stem cells to make lab—grown beef burgers and even lab—grown steak are already trying out growth factors made here in iceland. and although the first—ever growth factors came from animals, it's hoped that this barley plant method will be cheaper and scalable because nature can do a lot of the heavy lifting. but at the moment, research is still ongoing to come up with the barley that produces the very best growth factors, which is why the volcanic and geothermal peculiarities of iceland are an ideal place to experiment

with different growing conditions. they're growing the barley in this, which is volcanic pumice from mount hekla, which is somewhere over there. the good thing about pumice is it is inert so it doesn't really release any nutrients into the plants itself and that means these guys can completely control the nutrient mix that the barley gets. we are here in a high—tech greenhouse that is using geothermal energy for heating and for the electricity. we are using hydroponic cultivation. the computer decides when to open windows, when to turn off lights, went to pump in c02, what nutrition to feed these plants and so forth. but eventually these carefully programmed plants will have to be harvested in regularfields to produce enough growth factor for a global label lab grown meat industry, and barley specifically has been chosen because it can grow in many different climates and it also doesn't cross pollinate with other plants around it.

the typicalfarm in iceland, which is about 150 hectares, could actually produce about 10,000 tons of meat. that's if lab—grown meat is indeed the answer. after all, aren't we all supposed to be eating more greens? well, not too far away, another company is tapping into iceland's geothermal power to put us on an altogether different diet. this is food for us, or at least it will be one day. it's not something we're currently used to eating, mind you, but tastes change. it's algae. i know, sounds kind of ewww, doesn't it? but the microalgae growing in these test units are rich in protein and omega—3, much more so than traditional crops grown in a field, and they also consume way fewer

natural resources too. in these systems, we can grow a tonne of protein and using 3—4—500 times less water and 14—1500 times less land than the best thing that we know today. and in fact, because algae is a plant, it has another environmental benefit — photosynthesis. we get the c02 from the power plant, we get into our system, we use algae to actually fix that co2 into biomass and they breathe out oxygen, so oxygen is actually our only byproduct of this product. which is not a bad byproduct, really. the health authorities don't seem to mind. laughs. so, right here in geothermal iceland where electricity and hot water are both essentially clean, green and on tap, growing this algae ends up

being carbon negative. it pulls more c02 out of the environment than the electricity puts back in. but in order to feed the world, these algae farms would need to be placed around the globe. and not everywhere�*s on top of a volcano. the system itself is always carbon negative because we take in c02, we fix it in biomass and we breathe out oxygen. but if you're having to use electricity that's generated through coal... exactly. ..then the system is generating c02 as well... yes, yes. ..and can then you connect the pipe from the power station, straight back into the algae and suck it back in? that is actually a possibility. this is what we're doing right now. these guys, they need c02, so we could actually take whatever c02 into the system, theoretically. and in fact, vaxa is thinking even further ahead than improving the environment here on earth. growing food in small spaces

with limited water and producing oxygen as a byproduct sounds like a pretty useful thing to be able to do, i don't know, in a moon base or on mars. if the colonists can stomach it, that is. all right, let me ask you a question — what does algae taste like? um, basically the medium it's in. so this algae is a cold seawater algae. salty then? so it's salty. the problem is, this one is fairly robust... by "fairly robust", you mean a tough chew? it's a tough chew, yeah, it is. laughs. 0k, i've been made an offer that i can't refuse. kiti said, "would you like to drink some algae?" of course i would! oh, my life! for real, or...? 0k. i can do it first, if you want. you're not having a laugh? i can do it first.

yeah, it's fishy. yeah. needs a little, um... what's it called? a lie—down afterwards, that's it. 0k. laughs. hmm, maybe it will take a more creative chef than me to be able to sell this straight onto the plate. nobody is going to eat lg paste —— algae paste. so we're going to use this prop to make food.— algae paste. so we're going to use this prop to make food. because you aet this prop to make food. because you get soy-based _ this prop to make food. because you get soy-based stuff. _ this prop to make food. because you get soy-based stuff. yes, _ this prop to make food. because you get soy-based stuff. yes, but - this prop to make food. because you get soy-based stuff. yes, but you'd | get soy-based stuff. yes, but you'd extract the — get soy-based stuff. yes, but you'd extract the protein _ get soy-based stuff. yes, but you'd extract the protein and _ get soy-based stuff. yes, but you'd extract the protein and make - get soy-based stuff. yes, but you'd extract the protein and make stuff. extract the protein and make stuff out of the protein. in extract the protein and make stuff out of the protein.— out of the protein. in posh restaurants, _ out of the protein. in posh

restaurants, you - out of the protein. in posh restaurants, you have - out of the protein. in posh| restaurants, you have your out of the protein. in posh - restaurants, you have your main course and you have it in a red wine jus, which is basicallyjust gravy, you need to call this al—jay and you can charge £100 a plate. china's version of tiktok has said it will limit usage per day. and streaming service netflix has bought the rights to all of roald dahl�*s books. and after apple showed off the new iphone, it was microsoft's turn to show off their new products. it promised the most powerful surface pro device, a new surface laptop and also hyped up a new iteration of its surface duo ii.

students from the netherlands have set off on a road trip and what they claim is the world's first self sustaining house on wheels. the concept has an array on its roof that harvests energy to power the vehicle making it fully self—sufficient. they are taking part in the european solar tour which aims to raise awareness of the need for sustainable travel. and finally, nasa has chosen the site for its moon rover landing near the moon's south pole. the viper mission slated for 2023 will attempt to find water on the western side of the crater. the moon's south pole is out for one of the coldest parts of our solar system. for one of the coldest parts of our solarsystem. i'm for one of the coldest parts of our solar system. i'm looking forward to seeing the dark side of the moon. iamata i am at a maritime innovation hub in

reykjavik and i'm being taught how to command the silent flyer. it's like a bird drone. it's kind of relaxing just watching it. engineer peter helps year by doctor clara is the technical lead behind a very different and quiet kind of drone, one that emits less than 70 decibels. why have you built a bird drone? ,, . . �* , drone? surveillance, when it's important _ drone? surveillance, when it's important to — drone? surveillance, when it's important to not _ drone? surveillance, when it's important to not have - drone? surveillance, when it's| important to not have intrusive devices, something that can be obscured and can hide within a flock of birds, if you're thinking of wildlife monitoring, we have had inquiries also from the defence sector. br; inquiries also from the defence sector. �* , . ~ ., , sector. by mimicking nature, it is hoed sector. by mimicking nature, it is heped this _ sector. by mimicking nature, it is hoped this drone _ sector. by mimicking nature, it is hoped this drone will _ sector. by mimicking nature, it is hoped this drone will be - sector. by mimicking nature, it is hoped this drone will be able - sector. by mimicking nature, it is hoped this drone will be able to l

hoped this drone will be able to flap by unnoticed. actual in air tests aren't scheduled though until next summer. so it might be a little while before this bird starts to fly but in the skies above san francisco, there is an aircraft which is currently flying itself and on—board is cody godwin. the streets of san francisco are home to many self—driving cars so naturally the sky above the city is home to a self—flying plane. this is xwing, a company that has developed an autonomous flying system that handles everything from taxiing to take off to landing to parking. the system is similar to self—driving cars and uses a lot of the same tech like lidar cameras and sensors to navigate the skies. while a command centre on the ground helps the autonomous system communicate with the humans in air traffic control. and now that i'm suited and booted, let's see this thing in action. so this is basically a beta version of what they're working on, which means it will also make always

require a safety pilot on board but the company is working to be entirely autonomous meaning none of these by the end of next year, and they're also hoping to get faa certification in 202a. all that the human pilot on board has to do is physically turn the plane on, check that all systems are go and press the button that activates the autonomous system. then it's up to the plane. it does have to liaise with a human in the ground control centre while it's making its way to the runway for takeoff but that's just to ensure it's safe to cross certain parts of the strip. during takeoff it's almost like an ghost is in control because all of the parts are still moving but i'm not seeing what's moving them. once you've trained a robot once, you can build as many robots as you want, they all do the same thing, right? yeah. some of what the sensors and cameras are picking up is augmented over a realtime view of three

cameras mounted on the exterior of the plane. the purpleish bits off to the side are other planes that are in the area, while the bluish coloured lines in front of the plane are the flight path. on our way back to base, the team decided to let me fly the plane. so we're taking control of the aeroplane. so he's out of the loop because he doesn't know what you are doing. all right. i don't know what i'm doing. perfect. after a quick lesson on an xbox controller, i was flying a plane for the first time ever. sure, i was just controlling the direction and the altitude but it was a lot of fun. they even let me go as far as a 45—degree tilt. aeroplanes have been equipped with autopilot systems for years already but the system xwing has developed takes that to the next level. if i was just a passenger in this plane, i would have never known it was being flown autonomously. the ride, takeoff and landing were as smooth as any other flight i've been on.

the goal is to eventually have one person overseeing a fleet of flights and sending instructions from control to the computers flying the planes. xwing has been building up the capabilities of the system since 2019. they are planning to use the system to transport cargo. the next ste is to system to transport cargo. the next step is to fly — system to transport cargo. the next step is to fly commercially - system to transport cargo. the next | step is to fly commercially unmanned with no one aboard the aircraft but over unpopulated areas so you're not putting anybody�*s life in jeopardy or anybody in the ground —— on the ground injeopardy. the or anybody in the ground -- on the ground injeopardy.— or anybody in the ground -- on the ground in jeopardy. ground in 'eopardy. the company sees this as a ground in jeopardy. the company sees this as a way — ground in jeopardy. the company sees this as a way to _ ground in jeopardy. the company sees this as a way to make _ ground in jeopardy. the company sees this as a way to make the _ ground in jeopardy. the company sees this as a way to make the process - this as a way to make the process more cost effective. its unchartered territory but to make it even this far has proved to the aviation authority it is possible and more importantly safe. i've always wanted to get a pilots licence but may be

tech like this means i won't ever need to. but it's still likely a ways off before we see widespread adaptation and faa approval of unmanned aircrafts. drone is built of this country house in chichester don'tjust hover above in chichester don't just hover above the in chichester don'tjust hover above the back yard. a ground—breaking new licence mean pilots can fly these aircraft from hundreds of miles away. typically, drones are not allowed to be flown out of sight of the operator and even when this does happen, regulators only give permission for specific flights on a specific date and for a specific cause. that could be about to change. a company based here has just been granted the uk's first of a blanket licence to make beyond line of sight flights at a moment's notice. pioneering first flights also rely on autonomous systems. share

also rely on autonomous systems. are s stem also rely on autonomous systems. fie system maps also rely on autonomous systems. fife: system maps the world in also rely on autonomous systems. fie system maps the world in 3d in real time, understands that 3d world and positioning in the world. that can allow the pilot to stand back and observe. :, , :, :, observe. the drone is going to turn the cameras _ observe. the drone is going to turn the cameras going _ observe. the drone is going to turn the cameras going to _ observe. the drone is going to turn the cameras going to turn. - observe. the drone is going to turn the cameras going to turn. we - observe. the drone is going to turn the cameras going to turn. we can | observe. the drone is going to turn i the cameras going to turn. we can go and have _ the cameras going to turn. we can go and have a _ the cameras going to turn. we can go and have a look at those trees over there _ and have a look at those trees over there. ~ :, �* , , . and have a look at those trees over there. ~ :, �*, , . , there. what's the difference between fl in: it in there. what's the difference between flying it in here _ there. what's the difference between flying it in here and _ there. what's the difference between flying it in here and out _ there. what's the difference between flying it in here and out of— there. what's the difference between flying it in here and out of the - flying it in here and out of the line of sight than it would be if you were stood outside? it line of sight than it would be if you were stood outside? if you're fl in: on you were stood outside? if you're flying on an _ you were stood outside? if you're flying on an oil — you were stood outside? if you're flying on an oil rig _ you were stood outside? if you're flying on an oil rig or— you were stood outside? if you're flying on an oil rig or a _ flying on an oil rig or a long—distance structure, you don't have _ long—distance structure, you don't have to _ long—distance structure, you don't have to keep walking along and looking — have to keep walking along and looking at the drone, you don't have to have _ looking at the drone, you don't have to have a _ looking at the drone, you don't have to have a trained pilot at each site. — to have a trained pilot at each site. it — to have a trained pilot at each site, it could be an acquired office like this_ site, it could be an acquired office like this focus on what they are doing _ like this focus on what they are doing without the distraction of the wind in _ doing without the distraction of the wind in the rain.— wind in the rain. drone is fitted with cameras — wind in the rain. drone is fitted with cameras or _ wind in the rain. drone is fitted with cameras or sensors - wind in the rain. drone is fitted with cameras or sensors are i with cameras or sensors are particularly useful at locations that are difficult or dangerous for humans to be. parts of this nuclear power plant and the uk's high—speed rail network have already been surveyed from a fire. a0 miles away, remote—controlled drones are also

helping scans with construction with reservations in surrey. the helping scans with construction with reservations in surrey.— reservations in surrey. the visual line of sight _ reservations in surrey. the visual line of sight gives _ reservations in surrey. the visual line of sight gives us _ reservations in surrey. the visual line of sight gives us the - line of sight gives us the opportunity to have fewer people on site. fewer people is less risk which is a massive plus and busy construction sites. the capabilities of it mean we can cover large areas quicker and it's also more reactive, being able to set a certain task and check beam on a concrete finish —— or a concrete finish and checking the view from above is key. later down the line, _ the view from above is key. later down the line, delivery _ the view from above is key. later down the line, delivery of- the view from above is key. later down the line, delivery of online shopping medicine by drones could change our lives but industrial sites are a good place to prove the systems are safe. i really want to press it. if the ilot i really want to press it. if the pilot becomes _ i really want to press it. if the pilot becomes incapacitated, l i really want to press it. if the pilot becomes incapacitated, someone 'ust pilot becomes incapacitated, someone just has— pilot becomes incapacitated, someone just has to _ pilot becomes incapacitated, someone just has to press that button and the drone — just has to press that button and the drone comes home and land safelx _ the drone comes home and land safel . : ., :, 1, ., the drone comes home and land

safel . : ., :, ., :, safely. amazon, boeing and other companies — safely. amazon, boeing and other companies are _ safely. amazon, boeing and other companies are working _ safely. amazon, boeing and other companies are working with - safely. amazon, boeing and other companies are working with the i companies are working with the aviation regulator, shaping rules that may one day permit drones to transport human passengers. it transport human passengers. ut doesn't know if it's carrying a camera or a human in a drone taxi. after i go on a simulator, i don't think i should be flying any precious cargo. i don't think i'm going to be coming for anyone because myjob anytime soon. i'm quite nervous even though isn't real! i'm going to try to get through that without crashing. argh! 0n through that without crashing. argh! on a similartheme, through that without crashing. argh! on a similar theme, let's talk about how your deliveries are going to be dropped off in future. will it be by drone? by cute delivery robot? 0r dropped off in future. will it be by drone? by cute delivery robot? or by an overworked human driver? they've found a way to combine all three. the academy of robotics have treated

a self driving electric delivery vehicle. it's fully road legal and houses 12 cameras and a number of sensors to tell when it's going, not to mention it features a slew of solar panels to constantly power and charge it up. in this version of cargo, there's a for an operator to make sure everything is running well and that will be phased out once they can connect to the car with confidence remotely but the company says it only takes one pass through an area before cargo learns it and thenit an area before cargo learns it and then it can drive around comfortably with no help. we are told this thing can deliver up to a8 packages a day and hit up to 60 miles an hour but we won't see that speed here as we follow it through a local neighbourhood during its trial run. itjust looks like a really small racing car, but withjust itjust looks like a really small racing car, but with just a whole lot of green, plastic trim. i guess it doesn't matter how it looks, it's

about how it functions and right now it's functioning fine, it's going down the route, it's driving well, avoiding parked cars, it's impressive. it almost looks like someone is driving it. it then completed its run of deliveries with no trouble at all. but this isn't the only vehicle they've created. the company needs a command base to control everything from as well, remotely connect to the car and make sure everything is going all right, intervene if need be. well, they put that on wheels, too. inside is a system built to process what they can't see in real time, a driving seat so someone can manually take control of a car if need be and even space to be loaded up and moved once it's done but this was a late innovation, before anything else the company spent three years focusing on just the software. mast company spent three years focusing on just the software.— on just the software. most cars are lookin: at on just the software. most cars are looking at the _ on just the software. most cars are looking at the road _ on just the software. most cars are looking at the road is _ on just the software. most cars are looking at the road is one - on just the software. most cars are looking at the road is one giant - looking at the road is one giant scene and then trying to figure out

whatever thing is doing but when we're driving us your eyes are darting from there to there and you zoom in, zoom out, and you do all these little things so we just simulated this in software where we make a cluster of ms doing little things and together they synchronise.— things and together they synchronise. things and together they s nchronise. : :, , :, synchronise. and how they train these ais synchronise. and how they train these ais is _ synchronise. and how they train these ais is not _ synchronise. and how they train these ais is not typical. - synchronise. and how they train these ais is not typical. instead | synchronise. and how they train i these ais is not typical. instead of gathering tonnes of data to teach them, the company compute its scenarios, giving many driving possibilities to teach the car. this is the only self driving delivery card out there. 0ver is the only self driving delivery card out there. over in the united states, there are other vehicles. quite similar in the way they look, work and drive about like cargo. but the company is looking to do more than deliver to people's homes. we are on the ref brize norton base. watching as their car delivers items across the massive site. for security reasons, the company

couldn't scan the base as it normally would i neighbourhood but they've gotten around that. what they've gotten around that. what they've done is preloaded the robot with pre—existing data about similar sites and fine tune it to the specific set up like we are certain places are and a traffic light that screen here actually means stop. weird. that, coupled with the on—board cameras and sensors, means it can go across the relatively unknown site without any free training. so this self driving car has a lot of promise, potentially the future of delivery for consumers and businesses too. but with humans are still needed behind the wheel for safety�*s sake, it may be a while before we see these swarming our roads. and that's all we have time for in the short version of click for this week. you can find out what we're up to on social media. thanks for watching and we'll see you soon.

hello. it might remain grey and murky for some of you today about where the sunshine breaks out and even if it doesn't, it's going to be a particularly warm day for this stage in september. through this we can, towns and cities could see temperatures into the low 20s. a big change by mid week next week. a drop of 10 celsius will be arriving. more details coming up. but here and now, it is warmer out there. there's plenty of cloud. some of it will remain stubborn across the hills and coasts. the mid—morning rain in shetland will have cleared and we will see some sunshine break through the cloud here and there. parts of wales, the midlands, yorkshire towards east anglia, around the

southeast and towards scotland, temperature of 21 to 2a celsius. temperatures in the high teens in the west even with the cloud. we will have night—time temperatures like that tonight because when spring humid airand like that tonight because when spring humid air and will bring a few showers, perhaps the odd heavy one, a dry night, partly cleared at times and temperatures in the mid teens as we start tomorrow morning. whilst we have southerly winds and the feel of summer, there is a change of seasons on the way behind this weather front. ultram change of seasons on the way behind this weatherfront. ultram is waiting. 0nce this weatherfront. ultram is waiting. once it has passed, the weather front will push its way towards ireland. —— autumn is waiting. parts of eastern scotland, england and wales, other than the odd shower, places will be dry and it will be a sunnier day than today stop clouding overfrom it will be a sunnier day than today stop clouding over from the west, highest of the temperature is 22 in scotland, 23 and 2a in some parts of eastern england. the weatherfront

will move eastwards through sunday into monday, rain heavy at times, gusty winds. it could be a wet start through parts of scotland, central and eastern england for the early risers, turning sunnier through the day, a few showers around with hail and thunder and temperatures of 1a to 17 celsius. for tuesday and wednesday, more low pressure systems will bring more in the way of wet and windy weather, changeable conditions as we go into next week. you can see that from the symbols. the big thing is the temperatures, 13 to 17 celsius, it will feel substantially cooler than this weekend.

good afternoon. the government is due to formally announce a visa scheme tomorrow that will make it easier for foreign drivers to work in the uk. it's expected the temporary plan will allow visas for about 5,000 drivers to tackle the hgv driver shortage, which has led to supply problems at some petrol stations and other businesses. the road haulage association estimates that the uk is short of about 100,000 hgv drivers in total. here's our business correspondent, katy austin. let's join our correspondent

peter harris at a petrol station near leeds.