there are millions of heavy goods trucks driving on roads all over the world. but why are so few of them running on electricity? to find out, we are in sodertalje, near sweden's capital, and home to one of europe's biggest truck manufacturers. they're on the long road to changing an industry that's having a big impact on our planet. the biggest and largest change that our industry has for over 100 years. when we went from horses to vehicles actually. now trundling off the end of their production line is an increasing number of electric trucks. and scania eventually

wants that to be every vehicle they make. switching to electric vehicle production hasn't been easy. one of the biggest challenges is the weight of the batteries. they had to reinforce the concrete and bring in new equipment to be able to lift them, and that meant closing down the production line for three months. there are several thousand new components in the electric vehicles, and they're also, what was very important during this time, was to also cater for the reskilling of all our fantastic workforce so that they could be able also to mount electric vehicles, just as they do for internal combustion engines. unlike for cars, this move to electric trucking is going at a very slow pace. so what motivates a company to make such a big gearshift? hi, how are you doing? welcome on board. thank you. nice to meet you.

i'm hitching a lift from the man with the keys to this organisation. this company have been part of the problem for 130 years almost, a very long time producing... certainly. ..those trucks that were emitting the emissions that were not good for the planet. is there guilt behind the change? yeah, i think there is guilt, there is the notion that we want to be able to see our kids and our grandchildren in the eyes and be able to say we knew it and we chose to do something about it instead ofjust trying to continue to optimise profits and do the things that company. ..companies do. and there is also a notion of coming early to the insight that this is the future competitiveness. you know, if you are lost into this journey, you're going to have a hell of a problem to compete because at some point everyone will understand, and that has been really

important because you have to have that as a company, when you are to convince your supervisory board, your owners and everyone around you in the ecosystem that you need to walk down this path. not only did scania stop output for several months, they also built this battery factory right next to where the trucks are assembled. we're in one of the most high—tech parts of this site where lots of robots are assembling the batteries that will end up in the trucks. it's quite mesmerising to watch. these batteries weigh an incredible 4,000kg. that presents lots of challenges for those driving them. there are still lots of questions, though, about using battery electric. is it powerful enough to move these heavy trucks? is there the charging infrastructure to allow them to go where they need to go, and at three times the cost of a normal truck, are they a sound investment that companies will get

their money back on? and part of the debate has also been about other ways to power trucks, with some in the industry suggesting hydrogen fuel cells are the best solution for green trucking. battery electric is the most cost efficient. so, therefore, we believe in this. and also, it is possible to build infrastructure and everything around it. so, what do you think? shall we go for a ride? i think we should. let's do it. alright. let's go. it's completely silent. and it's strong — torque is amazing. you must still have a hard job, though, convincing companies and drivers to make the switch. sure, there is a lot of scepticism. i'm travelling a lot in myjob and i was also to finland there a couple of weeks ago, which i would have expected to be market ready to transition quickly. but huge scepticism, you know. will this really work? can it stand the temperatures of northern finland, you know, the home of... ..of santa claus, really cold, really tough drives, really high vehicle weights,

and i understand that. we need to take that on, with facts, and then the best way to convince customers, is, as always, when something is new, and this is a very traditional industry, so we're used to that, but when there is something new, let them test. by 2030, scania wants half of the trucks they sell to be electric, and fully battery operated by 2050, but that is still a long way off. i certainly think this journey could be much accelerated if the legislature would be more active in supporting the change. this is our biggest challenge now. the vehicle is here. i mean, what we sit in now is a 40—tonner, it's european long haulage, but we're also supplying 60, 64, 74 and 80—tonners. i spend a lot of time

in brussels, in berlin, in stockholm, all over to try and convince politicians that this is a good thing, you know, this is notjust for the environment, it's also a great driver environment. the road to green trucking is slow. there's still a lot of work to do for manufacturers across the industry trying to convince buyers to make the switch. groans ah! laughs 0h! 0k, whose stupid idea was it to film parts of this report with my feet in the waters of lake zurich... oh, god! ..twice? of course, i've just been told where the water in this lake comes from. bloomin�* glaciers, doesn't it? you know, if you leave them in there long enough, they become numb and you don't feel it anymore. now, the person making a whole lot less fuss than me

here isjulia bislin, one of the team representing the star of the show — this underwater drone. we started off in the search—and—rescue space. so, and we're search and rescue and then also ammunition detection and retrieval. so we mainly started for the swiss police departments and the swiss military. hence we created something that would work well in swiss waters, in particular, rivers. so that's why our robot is built in a way that it can withstand strong currents. yes, just as aerial drones can hold their position in strong winds, this one can stay very still, even when the water around it is rushing past at three knots. and today, i get to see the latest upgrade to its low—drag shell and ai—powered control software that adjusts its motors to counter turbulence. tethys one is the newest version of this drone. it's pretty nippy, can travel at about four knots, and it has onboard cameras. but because the water is often far too murky to see what you're doing,

it also has sonar, which it uses to build up a 3—d point cloud of the area. some of the applications this is being pitched at include mapping, and today, underwater toe inspection. how are they looking? blue? actually, are they still there? i can't feel them. oh, god! groans time to take tethys for a dive... groans ..and for me to avoid hypothermia. take me on an adventure. show me the sites. as is common in robotics these days, andre is using a standard, familiar and, importantly, tried, tested and reliable games controller to steer the drone. what is this — a little fishing boat? yeah, it's just a small fishing boat, nothing too crazy. it's pretty zippy — it goes pretty fast. it's not that slow, yeah, definitely, yeah. i mean, i can't keep up and i was swimming

seven years of my life, nearly professionally. i can't keep up with this. you can believe that, can't you? you can believe he was a nearly professional swimmer. well... tethys one can dive to 300 metres and it sends live pictures and receives steering commands through a 1.5—kilometre long cable. but it can operate without the cable, driving autonomously and avoiding obstacles and mapping its own area, which is no mean feat given that unlike airborne drones, it cannot see gps satellites from underwater. so our drone is able to map and localise at the same time. so when the drone sees, like, new field that it has never seen before, it can generate a map and then when the robot, like, returns to that position, it can recognise that it has been there and then, like, fuse all the information together. it's a bit like the vacuum cleaner robots — they do the same sort of thing. yeah, exactly.

it's more or less the same thing, butjust underwater. yeah, 0k. this ability to map an area, to see in poor visibility by using sonar, as well as normal cameras, plus the option to fit various grippers and tools will allow the company to target industries operating in tricky environments. in the future, the drone may be inspecting offshore wind turbines, oil and gas pipelines, communication cables, and maybe even the hulls of ships. all areas that are hazardous even to the most highly skilled human divers. is this a fish?! i love a fish, yeah, exactly. wow! tethys is another example of what happens when students meet and study at university, in this case, eth in zurich, and then decide to work together to take their research further. who knows what discoveries await this little robot? there's a chair?! a chair, yeah! there's a chair! laughter i mean, it's forsure... i tell you what — i often see the occasional wild shopping trolley in a lake,

but i rarely see a chair. now...where did i leave my shoes? and that's it for the shortcut of click from a very beautiful zurich. there's more from us in the full—length version, which is available to watch right now on iplayer. thanks for watching, and we will see you soon. low pressure and early warmth in september have brought flooding rains to some this weekend. a month's worth of rain fell in parts of the west midlands on the slow moving weather front on sunday, which is only slowly easing its way eastwards through the remainder of the night. so the heaviest rain does ease.

the thunderstorms ease away as well, but there'll be misty low cloud and hill fog with this weather system in the east. further west the skies start to clear and it will be chillier for scotland and northern ireland in particular. and in fact in these areas it was chillier on sunday as well. still warm and muggy in the south and still with a lot of murky weather, first thing on monday, quite grey, quite damp on that weather front initially, but compared with sunday for wales, for north west england, for the south—west of england, it's much drier picture eastern scotland as well. but the rain does roll back in to the west of scotland, northern ireland later and this cloud, murky low cloud, could just hang on in east anglia and the south east for much of the day, where we see the sunshine 17 or 18. but that's considerably down. and as we saw on sunday, temperatures are lower anyway in the north now and then that rain rushes eastwards as we go

through monday night.

of three israelis at a border crossing to the occupied west bank. typhoon yagi weakens to a tropical depression — after killing more than a dozen people and landslides across vietnam. and — fireworks light up the night sky, bringing the paralympics — and paris�* summer of sport — to a close. welcome to bbc news — broadcasting to viewers in the uk and around the world. we begin in spain where the venezuelan opposition leader, edmundo gonzalez, has arrived after fleeing his homeland and been granted political asylum. this was his plane landing at a military base near madrid. he left venezuela after taking refuge in the spanish embassy in caracas. he'd challenged the venezuelan president, nicolas maduro, injuly�*s elections, which the opposition claims it won.

which the opposition mr gonzalez�*s opposition colleague maria corina machado