tesla's sales improve in the second quarter, sending its stock soaring 10%. with the olympics nearly upon us, we take a look at how technology is transforming the games. hello and welcome to business today. i'm steve lai. the ev mega shares of tesla surged 10% off reporting better—than—expected delivery and a second quarter. the bbc�*s north america business correspondent michelle fleury has all the details. after going through a slump, tesla may have finally turned a corner thanks to demand for its model three sedan and its model y suv. the company delivered nearly 444,000 cars in the last three months, a figure that is up sharply from the previous quarter, although it's still down nearly 5% from a year ago.

as a result of these better than expected performance, tesla retains the title as the world's top seller of electric cars. meanwhile, there was also good news out of general motors. the detroit auto—maker said electric car sales hit a new record, but those double digit gains still account for only a small percentage of its overall business. nonetheless, the upbeat news is being seen as a positive sign at a time when us car—makers face increased competition from the likes of chinese firm byd, as well as lukewarm consumer demand for electric vehicles. the clock is ticking for chinese and the european union negotiators who are in talks over the eu's plans to impose tariffs on chinese electric vehicles. the provisional tariffs are expected to kick in on 4july. last month, the eu announced it would impose duties as much as 38% on evs shipped from china. that's on top of the 10% levy on all cars imported

to eu countries. among china's biggest car—makers, the tariffs are highest for saic, which makes the m64 electric car. geely, which owns a stake in volvo, faces a tariff of 20% while a 17.4% duty will be applied to byd brands. tu le from sino auto insights explained what is at stake for chinese car—makers if no solution is reached. mainly, they're just trying to find a way for the chinese government to reduce or eliminate the tariffs and with the eu they are just trying to do everything they can to stand firm. there is internal pressures from the german auto—makers to reduce or eliminate the tariffs as well, so last week they actually reduced the geely tariffs by a little bit, but it's more insult to injury. it seems like the eu is going to do everything

they can to stand firm with these severe increases on the tariffs. china says it wants a mutually acceptable solution but what can that realistically look like? i think what's important is, you know, beforejuly 4 if there is any movement, it might be minimum on either sides, both sides specifically looking at the saic close to 50% on the tariffs. they need to be able to sell something to the domestic audience that they are being strong and or they are negotiating some sort of reduction to save face on both sides. but the eu seems very serious, i would also look at these tariffs as the eu really acknowledging that the chinese evs that are being built and currently are about 25% of all euv�*s imported into the eu

are made in china. it's acknowledgement that these products are really good and the domestic competition probably isn't up to the task competing with them. the investor is filling accusations of collusion in the adani case by the indian market regulator. business correspondent nikhil inamdar has the latest on the saga. hindenburg research that allegations from the indian market regulator it colluded with a us asset manager to use non—public information to set “p non—public information to set up its short but against the adani group last year, are typically false. a short trades are set up to but against a company's share price and hindenburg's allegations caused adani's market gap defined by over $100 billion last year. in

a statement on the website hindenburg caught the notice regulatory violations nonsense and said it was an attempt to silence and intimidate them. the statement further says the regulator was doing more to protect those who were perpetrating a fraud than the investors who were in fact being victimised. neither the adani group nor market regulator has so far responded to these comments. google has revealed its greenhouse gas emissions have sought in the last five years because of the electricity needed to power data centres developing artificial intelligence. according to the latest environmental report by the firm its carbon footprint increased by 48% despite the tech giant pledging to become carbon neutral by the end of the decade. its rival microsoft which has a big stake in 0penai's chatgpt saw emissions rise by 30% last year. speaking of ai, generative ai is getting smarter at some university

exams. a recent study by the university of reading has found that on tests for psychology courses, answers generated by ai scored higher than those done by undergraduate students. the study also found that 94% of the ai answers were undetected by those marking the exams. one of the study�*s co—authors professor peter scarfe laid out the implications of this. we have to embrace the 12. —— tool. ai is really not going to be going anywhere, our study has showed is an issue for academic integrity. i think going forward will be looking at a new kind of assessments where we have a set of assessments which are completed in a supervised fashion, so we now know that al can't be used and on a set of assessments where we are using and embracing ai in an assessment itself. it seems almost like counterintuitive to be tested on how well you can

use al to further your education, but i suppose that's the world we are in now and the way things are going. do you think if we project this forward though, what do you think the implications will be on education and also for people when they enter the workforce? yeah, you're completely right, ourstudents will be using ai in the workplace after university and so it's going to be our kind of role to help them use ai ethically and reliably, but while ai is a problem for academic integrity it also offers a really big potential benefit for helping to augment and shape education. with the olympic games in paris just weeks away, new technology is increasingly important both in sporting arenas and for the audiences watching coverage of the events. lara lewington from the bbc�*s click programme caught up with olympic gymnastics champion max whitlock to look at technology aiming to enhance viewing experiences at the games.

max whitlock is britain's greatest gymnast. he's won multiple titles including three world championship golds and six 0lympic medals, three of those were also gold. but this will be his last time competing at the games. he is retiring after paris, so fans may want to watch his every move. the olympics of course provides great excitement all over the world but despite the fact that athletes move fast, they can't be everywhere all at once. so maybe this is the solution. 29 cameras make up this volumetric studio which will have more than one use for athletes. all those cameras are then fed into a capture pc that runs on intel processing power. we can capture human performances,

interactions, singing, dancing, whatever, in full 4—d. the end result is a digital version of the person which can be beamed into tv studios around the world during broadcast interviews. i am a team gb gymnast and i'm going to do a somersault in this new technology. using a tracked camera we can synchronise the virtual - environment and the athlete doing a backflip _ with the interviewer in real time so it. seems like they are actually together. l any athlete would call out and massively welcome viewing experience enhancements, but in different ways. i think it's obviously very very clever when there are new ways to move forward to do support in different ways.

and here we have it, the smartphone version of an ar athlete which sports fans can access byjust getting a qr code. what was the turning point when it felt like it was fit for purpose? it took a lot of r&d to get a human looking like a human. you can't mess up the way human looks, right? our human perception, it is very astute, so if someone? eyes are off a bit, we recognise that immediately and so on the reconstruction process and 3—d we had to get it perfect. greece has become the first european nation to introduce a six—day work week across some industries. the new law came into effect on monday, and hopes to boost productivity amongst workers. the change means the additional 40 hour work week could be extended to 48 hours. the premise discovers as the measures are needed. goodbye for now.

hello and welcome to sportsday — i'm gavin ramjaun. the long wait is over for the netherlands who make the quarter finals of the euros after beating romania. and they'll meet turkey in the last eight after their thrilling victory over austria, including the quickest knockout—stage goal in history. and djokovic in cruise control — putting knee concerns to one side on his opening match at wimbledon. but a shock for the defending women's champion at sw19. hello there and welcome along to the programme. and we start with the european championship. we now know the quarterfinal line—ups for the tournament

in germany, after victories for the netherlands and turkey.