welcome to bbc news. i'm simon pusey. our top stories... three, two, one... mission to the moon — nasa gives the go—ahead for its latest test flight — artemis will launch next monday. we are going for a launch, which is absolutely outstanding. this day has been a long time coming. lawyers for donald trump take legal action following the raid on his florida home — claiming it was an attempt to stop him running for office. when the lights go out — shanghai's skyline is cast into darkness — as china's severe drought leads to a power shortage. return of the liberator. brazil's first emperor arrives

to celebrate its bicentennial, or at least, to celebrate its bicentennial, orat least, part to celebrate its bicentennial, or at least, part of him does! welcome to our viewers on pbs in america and around the globe. a short time ago, nasa announced it's given the go—ahead for the launch of the artemis mission test flight to take place on monday next week. it's being heralded as the return of human exploration of the moon — you're watching the flight readiness briefing for nasa's artemis mission. it is to split is targeted for monday, august 29, with storage launch pad, 309b. and it's expected that it will lead eventually to the first

woman and the first person of colour setting foot there. it is the apollo mission for a new generation — as our science editor rebecca morelle explains. after a 50—year gap, we're heading back to the moon, see and it all starts here with the artemis mission and nasa's huge rocket. it's called the space launch system, or sls for short, and it's the most powerful rocket ever built by the us space agency. it stands nearly 100 metres — about 320 feet — tall, roughly the same height as a 32—storey building. its colossal size means it's really heavy, so it needs lots of power. it has four engines, but even those aren't enough to get this rocket off the ground, so what it also needs are these two huge boosters. they all use fuel, and the biggest part, called the core stage, is full of fuel. in fact, fuel makes up 90% of the weight of this entire rocket. now, you might be wondering where the astronauts will go. well, it's here, near the top,

in the orion crew capsule. but not this time. this is a test flight, so there are no people on board. the time has come to put the space launch system to the test. as it readies for blast—off from cape canaveral in florida on launch pad 39b, the same one used for apollo, it will be nervewracking. 3, 2, 1... the rocket thunders away from the earth, eventually reaching speeds of nearly 25,000 miles, or 40,000 kilometres, an hour. as each component of the rocket completes theirjob, they separate. the orion spacecraft is on its way. there's a long journey ahead. it's 380,000 kilometres — about 240,000 miles — to the moon. after its launch, the spacecraft enters into a low earth orbit, then with the go from mission control, the engines ignite,

giving it the big push it needs to escape our planet's gravity. it takes several days to reach the moon, with the spacecraft making small adjustments along the way. at first, the spacecraft flies in close, 100 kilometres, that's 62 miles, above the lunar surface. then it enters a much larger orbit, swinging more than 65,000 kilometres, about 40,000 miles, beyond the moon. that's further than any spacecraft built for humans has ever flown. during the several weeks 0rion is in orbit, nasa will collect important data and check how the spacecraft is performing. finally, after another close fly—by, it's ready to head for home. now things get hazardous. as the spacecraft nears earth, it has to enter our atmosphere at exactly the right angle. if it gets this wrong, it will burn up.

so, its huge heat shield protects it while the temperature rises to nearly 3,000 degrees celsius. a series of parachutes open, massively slowing it down, before splash—down in the pacific ocean. we can noew speak to keith cowing, who is a former nasa employee and now editor of website nasa watch. a lot of fuss, about this, a lot of celebrity appearances, can you in lemmens terms sum up why there is so much excitement around this? i why there is so much excitement around this?— around this? i am a child of the apollo _ around this? i am a child of the apollo generation. - around this? i am a child of the apollo generation. i - around this? i am a child ofi the apollo generation. i am around this? i am a child of - the apollo generation. i am 67. i went_ the apollo generation. i am 67. i went through all of this as a kid, _ i went through all of this as a kid. i— i went through all of this as a kid. i was _ i went through all of this as a kid, i was told that he would land — kid, i was told that he would land on _ kid, i was told that he would land on the reading —— when the moon_ land on the reading —— when the moon in— land on the reading —— when the moon in nine years and we did. there_ moon in nine years and we did. there was_ moon in nine years and we did. there was lots of excitement then — there was lots of excitement then but _ there was lots of excitement then but that was then and this is now. — then but that was then and this is now, and we are talking about— is now, and we are talking about the artemis generation with— about the artemis generation with in— about the artemis generation with in many people harking hack— with in many people harking hack to _ with in many people harking back to this being their apollo moment, _ back to this being their apollo moment, but right now, more than _ moment, but right now, more

than half— moment, but right now, more than half of the world's population has never seen anybody walk on another world so it _ anybody walk on another world so it is— anybody walk on another world so it is going to be their first— so it is going to be their first moonwalk. that was then with _ first moonwalk. that was then with apollo and this is now, everything is instant, everything is instant, everything is instant, everything is going to be hd. so everything is going to be hd. 50 you — everything is going to be hd. so you will have the celebrities and stuff like that _ celebrities and stuff like that it _ celebrities and stuff like that. it is going to be exciting and noisy but we are sending _ exciting and noisy but we are sending humans to walk and another— sending humans to walk and another world, and hopefully, may _ another world, and hopefully, may he, — another world, and hopefully, may be, this time it'll be a global— may be, this time it'll be a global effort and not two countries competing with each other~ — countries competing with each other. it— countries competing with each other. . , , , countries competing with each other. , , . ., other. it has been very much a team effort. — other. it has been very much a team effort, global— team effort, global collaboration of notjust nasa but many other countries. absolutely. the state behind the command module is made by euroue, — the command module is made by europe, inside ourthree europe, inside our three mannequins, europe, inside ourthree mannequins, one is that american dummy, the signs at the hack— american dummy, the signs at the back will be brought altogether but if you look who is participating in this programme, canada, europe, japan. _ programme, canada, europe, japan. so — programme, canada, europe, japan, so it is notjust going to he — japan, so it is notjust going to he the _ japan, so it is notjust going

to be the first person of coiour— to be the first person of colour and first american woman but the _ colour and first american woman but the first person from canada. _ but the first person from canada, from europe, from uk, from _ canada, from europe, from uk, from japan, _ canada, from europe, from uk, from japan, walking on the surface _ from japan, walking on the surface of the moon, so it is a global— surface of the moon, so it is a global effort. surface of the moon, so it is a global effort-— surface of the moon, so it is a global effort. lots of landmark rlobal global effort. lots of landmark global events _ global effort. lots of landmark global events and _ global effort. lots of landmark global events and always - global effort. lots of landmark global events and always a - global events and always a danger when humans are involved. how nervous all the teams be about that?- involved. how nervous all the teams be about that? they have not done this _ teams be about that? they have not done this for— teams be about that? they have not done this for a _ teams be about that? they have not done this for a while - teams be about that? they have not done this for a while with . not done this for a while with a rocket _ not done this for a while with a rocket like this and the last time — a rocket like this and the last time we _ a rocket like this and the last time we sent humans up was quite — time we sent humans up was quite some time ago on a nasa spacecraft. we have been launching on space x rockets recentiy _ launching on space x rockets recently but every time people climb — recently but every time people climb into one of those things there — climb into one of those things there is— climb into one of those things there is a _ climb into one of those things there is a lot of nail biting. it there is a lot of nail biting. it goes _ there is a lot of nail biting. it goes with the whole thing. the key— it goes with the whole thing. the key is the landing sites. explain why that is so crucial. during apollo, they went to the easier— during apollo, they went to the easier sites on the equator of the moon— easier sites on the equator of the moon and they were interested in the lighting and been — interested in the lighting and been able to see it but this time — been able to see it but this time they will go to the south pole — time they will go to the south pole of— time they will go to the south pole of the moon, for reasons that— pole of the moon, for reasons that we — pole of the moon, for reasons that we have never been there, and because the way the moon orbits — and because the way the moon orbits around the earth and the

sun light — orbits around the earth and the sun light setup, the poles of the moon stay in perpetual sunshine and right next to them is almost — sunshine and right next to them is almost perpetual darkness so there _ is almost perpetual darkness so there is — is almost perpetual darkness so there is ice water, and other things— there is ice water, and other things on— there is ice water, and other things on a frozen area so you have — things on a frozen area so you have possible fuel. so we're going — have possible fuel. so we're going back this time not only to see — going back this time not only to see what is there, but what is so _ to see what is there, but what is so that— to see what is there, but what is so that we can use and stay on the — is so that we can use and stay on the moon longer.- is so that we can use and stay on the moon longer. there will be barriers _ on the moon longer. there will be barriers broken. _ on the moon longer. there will be barriers broken. the - on the moon longer. there will be barriers broken. the first i be barriers broken. the first woman to walk on the moon, but from a science perspective, what are you hoping, what do you think may come out of this trip? you think may come out of this tri - ? ~ , ., you think may come out of this tri? . , ., ., you think may come out of this tri . ? . , ., ., ., you think may come out of this tri?~ ., ., , trip? when you go to the polls, there are _ trip? when you go to the polls, there are a _ trip? when you go to the polls, there are a lot _ trip? when you go to the polls, there are a lot of— trip? when you go to the polls, there are a lot of things - trip? when you go to the polls, there are a lot of things that i there are a lot of things that are probably frozen in the darkness. we have an idea what is there. — darkness. we have an idea what is there, but not exactly until we go — is there, but not exactly until we go there, scoop it up and look— we go there, scoop it up and look at — we go there, scoop it up and look at it. _ we go there, scoop it up and look at it, and the fact that we can— look at it, and the fact that we can go to another world and do in _ we can go to another world and do in situ — we can go to another world and do in situ realisation where we dil do in situ realisation where we dig up— do in situ realisation where we dig up stuff and learn to live off the — dig up stuff and learn to live off the land, that is a paradigms shift from having

only— paradigms shift from having only what you bring with you. now — only what you bring with you. now we — only what you bring with you. now we can bring stuff with us to get— now we can bring stuff with us to get stuff that is already there. _ to get stuff that is already there, which makes staying on there, which makes staying on the moon— there, which makes staying on the moon and exploring humans even _ the moon and exploring humans even easier to do, and weevils -et even easier to do, and weevils get to— even easier to do, and weevils get to see _ even easier to do, and weevils get to see even more of it. thank— get to see even more of it. thank you, keith, that is all we have time for, thank you for bringing us your expertise. mr; bringing us your expertise. my pleasure. donald trump has asked a federal court to temporarily block the fbi from reviewing the material it seized from his florida home two weeks ago. in a lawsuit, the former us president has also asked the court to appoint what's called a special master — usually a retired lawyer or judge — to act as a watchdog. mr trump's lawyers say some of the material may be protected it by presidential privileges. let's speak to our north america correspondent chi chi izundu, who is in washington. how strong is this argument the trump _ how strong is this argument the trump team has put forward? to 27 trump team has put forward? 27 pages trump team has put forward? trr 27 pages strong. it is a document that is quite hefty.

donald trump outweighs the historical events according to him that when he left the office in january 2021, him that when he left the office injanuary 2021, to the present day, regarding these papers that are under discussion, so, donald trump, in this document then goes on to talk about the violation of his fourth amendment rights. that is what you saying the fbi and ofjustice have done, and that fourth amendment books about unreasonable searches and seizures of people's homes, and he is saying that is what has happened so he wants to defend that in this document. the four thinks he is asking for include that special master, an independent lawyer orjudge, to oversee the things that were taken from his home. the second thing is asking for is more information and detail on the warrant that was released last week regarding what was taken from his home, because he is

saying box number 11 is not enough information for him to know what was taken because he is alleging that some of the information, some of the papers taken were privileged or potentially privileged documents, therefore the third thing is asking for is the return of potential items that were taken from his home, that were taken from his home, that were not part of the warrant. he mentions the removal of his passports as being one of those items. the last thing that donald trump is asking for is basically, everything must stop, the fbi and the department ofjustice should no longer be reviewing the materials that it removed from his home, until this order goes through. the department of justice has issued a statement, basically saying they see this lawsuit, and they will respond in court. ., , ., , in court. donald trump and his team saying — in court. donald trump and his team saying this _ in court. donald trump and his team saying this is _ in court. donald trump and his team saying this is politically l team saying this is politically motivated.—

team saying this is politically motivated. ., ., motivated. indeed. throughout this document _ motivated. indeed. throughout this document donald - motivated. indeed. throughout this document donald trump'sl this document donald trump's team allege that all of this is politically motivated. in fact, they use interesting language, like the department ofjustice simply wanted the camel�*s nose under the tent, to rummage for politically helpful documents, to prevent donald trump from running in the 2024 presidential election, which we must highlight, he has actually said he is definitely going to do, but that phrase is peppered throughout this document. they allege that this is all to try and scupper not only that attempt to run for the 2024 presidential election, but also to potentially remove the republicans of the path of the upcoming november midterms as well. it upcoming november midterms as well. , ., ., ~ , upcoming november midterms as well. , ., .,~ , well. it is hard to keep track of all the — well. it is hard to keep track of all the twists _ well. it is hard to keep track of all the twists and - well. it is hard to keep track of all the twists and turns i well. it is hard to keep track of all the twists and turns in j of all the twists and turns in this story, but thank you for talking us through that, and i'm sure we have not heard the end of it.

let's get some of the day's other news. argentina's public prosecutor has asked a judge to sentence the country's vice—president, cristina fernandez de kirchner, to 12 years injail for alleged corruption. ms fernandez is accused of defrauding the state during her two terms as president of the country, and being involved in a scheme to divert public funds. she has been on trial since 2019, and has previously dismissed the charges as politically motivated. elon musk has issued the former boss of twitter, jack dorsey, with a legal writ to appear in court as part of his dispute with the social media company. mr musk is trying to pull out of a deal to buy twitter for $44 billion. his lawyers hope mr dorsey will help support their argument that the company wasn't honest about the volume of fake accounts on its platform. in the us city of atlanta, police have arrested a woman suspected of shooting two people dead, and wounding a third at different locations in the city centre. police said the attacks were not random and the victims were probably targeted. the suspect had initially remained at large but was later arrested at atlanta's international airport.

in china, authorities are battling one of the worst droughts seen in more than 50 years. falling river levels have left hydro—electric power stations unable to produce enough energy. as a result, emergency measures to save electricity have come into effect. shopping centres have been ordered to close early, factories have temporarily shut down, and the lights on shanghai's famous waterfront are to be turned off. katharine da costa reports. china's record—breaking drought has scorched farms and caused some lakes and rivers to dry up. the yangtze river, asia's longest waterway, is now at record low levels. officials say hydropower reservoirs are currently down by as much as half. at the same time, a surge in demand for air—conditioning has put power companies under extreme pressure. this is shanghai's famous skyline. the riverside bund area, a popular tourist destination, now plunged into

two days of darkness. restrictions have been brought in to try and ease demand for electricity. translation: large cities| consume a lot of electricity. power generation provinces like sichuan have been affected by the pandemic, and power generation has been affected. the shanghai government puts restrictions on consumption, and it will help ease the supply of electricity. in a harsh reminder of the devastating effects of drought, local news reports show fire trucks delivering water to villages in the central hubei province as rural communities struggle to get by and crops have withered. plunging water levels of the yangtze river in china's southwestern region have revealed this trio of buddhist statues believed to be 600 years old. translation: in the past, | the water level was basically more than three metres during this season. i've been working for over

a decade and i've never seen such low water levels. after weeks of extreme heat, china issued its first national drought alert of the year last week. some authorities in parts of central and southwestern china have turned to cloud seeding — an attempt to try and induce rainfall. there have been reports of rockets being launched into the sky carrying chemicals, but a lack of cloud cover has stalled efforts in some areas, and there's no let—up in sight. a red heat warning, the highest level of alert, remains in place in large swathes of the country. katherine da costa, bbc news. stay with us on bbc news, still to come... manchester united get their first win of the season, beating liverpool 2—1 at old trafford. he is the first african—american to win the presidential nomination

of a major party, and he accepts exactly 45 years ago to the day that martin luther king declared, "i have a dream." as darkness falls tonight, an unfamiliar light will appear in the south—eastern sky — an orange glowing disc that's brighter than anything save the moon, our neighbouring planet, mars. there is no doubt that this election is an important milestone in the birth of east timor as the world's newest nation. it will take months and billions of dollars to repair what katrina achieved injust hours. it three weeks is the longest the great clock has been off duty in 117 years, so it was with great satisfaction that clockmaker john vernon swung the pendulum to set the clock going again. bong!

this is bbc news — the latest headlines... three, two, one... mission to the moon. nasa gives the go—ahead for its latest test flight — artemis will launch next monday. lawyers for donald trump take legal action following the raid on his florida home — claiming it was an attempt to stop him running for office. the man who led the us response to the covid pandemic, anthony fauci, has announced he'll step down as the president's chief medical advisor in december. he's served under seven us presidents, beginning with republican ronald reagan in the 1980s. in a statement president biden said... "i know the american people and the entire world will "continue to benefit from dr fauci's expertise "in whatever he does next. "whether you've met him personally or not, he has "touched all americans' lives with his work." let's go live to washington dc now to speak to dan diamond, the washington post's national health reporter.

thank you forjoining us. less about his legacy because many people will have heard of him during the covid pandemic and how he was fairly polarising for parts of the us population but he has been a big name in medicine for a long time. is medicine for a long time. is one medicine for a long time. is one of the most cited health care researchers in us history. he came to prominence during the hiv aids crisis when he was the hiv aids crisis when he was the young doctor felt she, the young telegenic doctor who spoke about the risks that hiv, and try to combat that, and then over the previous decades, ebola, covid, he has been at the centre of the us response to so many infectious diseases. and famous based on his relationship with donald trump. how did he handle those difficult years where he was saying one thing and donald trump and other? i saying one thing and donald trump and other?— saying one thing and donald trump and other? i have spoken to dr fauci _ trump and other? i have spoken to dr fauci about _ trump and other? i have spoken to dr fauci about this. _

trump and other? i have spoken to dr fauci about this. he i trump and other? i have spoken to dr fauci about this. he was i to dr fauci about this. he was the unwilling competent at the front where donald trump would take the stage and make statements about covid that anthony fauci felt he was compelled to respond to. he would then follow donald trump, and have to redirect the conversation about drugs like hydroxychloroquine which donald trump said was a treatment for covid and doctor fachie said this actually does not have a lot of evidence and over the course of 2020, whether it was donald trump himself or his deputies, dr fauci increasingly was in the public eye pushing back on what donald trump had said. fix. back on what donald trump had said. �* ' . ., , back on what donald trump had said. �* ' . ., said. a difficult tightrope to walk, as said. a difficult tightrope to walk. as you _ said. a difficult tightrope to walk, as you remember, i said. a difficult tightrope to i walk, as you remember, with republicans and opponents still going after him to this day about the lockdown restrictions you put in place. how likely do you put in place. how likely do you think now that he has announced he is stepping down as it likely that that is going to continue, or do you think they will go away del? celeb it will continue. _ they will go away del? celeb it will continue. we _ they will go away del? celeb it will continue. we an _ they will go away del? celeb it will continue. we an election | will continue. we an election coming up in the us in a few months and republicans have vowed that if they win,

chambers of congress, they would launch investigations into dr fauci. i have spoken with them some months ago and i know that there was a ticking clock over his head, and he potentially wanted to leave before those investigations. they could still compel him to testify, if they win back one of those chambers of the house, but it will be a little bit harder to make that happen if he was a government servant on the other hand, they could do more investigative work into his role. he more investigative work into his role. , ., ., his role. he is not leaving medicine _ his role. he is not leaving medicine for _ his role. he is not leaving medicine for good. i his role. he is not leaving medicine for good. he i his role. he is not leaving medicine for good. he is l his role. he is not leaving i medicine for good. he is not retiring. _ medicine for good. he is not retiring. he _ medicine for good. he is not retiring, he is _ medicine for good. he is not retiring, he isjust _ medicine for good. he is not retiring, he isjust moving i medicine for good. he is notj retiring, he isjust moving to retiring, he is just moving to the next phase. it would not surprise me if he does something in the hiv and aids and other infectious disease work. he has had a number of different priorities that were subsumed by the covid response and he has said he wants to get back to them. a massive name coming out of the covid pandemic. dan diamond, thank you forjoining us. two of world football's biggest rivals have been taking part

in one of the biggest club matches of the season — as man united met liverpool in the premier league. thousands of united fans protested outside old trafford against the club's american owners, the glazerfamily, after losing their two opening games. as 0lly foster reports, united's new manager, erik ten hag, who'd left out star player cristiano ronaldo from his starting xi, praised his teams attitude. taking a couple of things into consideration, this really was an incredible result for manchester united. firstly, what happened against liverpool last season, shipping nine goals, 5—0 here at old trafford, 4—0 at anfield. this was supposed to be the match that kick—started liverpool's season. united's fans were fearful ahead of this match, and the second thing to consider is just how bad manchester united have been in their first two defeats of the season, here a couple of weeks ago against brighton, and humiliated at brentford last week. they started this match absolutely fantastically.

it was jadon sancho who gave them the first—half goal that they really deserved after they had already hit the post through elanga. elanga set up sancho who danced around the liverpool defence for their opener. and marcus rashford, who has had something of a dip in form, notjust this season but last season as well, he stayed onside and scored what proved to be the winner early in the second half. of course it was mo salah who pulled one back for liverpool, he scored five times against them last season. there was a late scare for united, but they showed incredible resilience here, and a match that had started with united's fans demonstrations against the ownership of the glazer family, it was just the celebrations that they will take home with them. 0lly foster reporting for us. in a few weeks' time — brazil will celebrate the 200th anniversary of its independence. dignitaries from all around the world are expected to attend.

and portugal — the former colonial ruler — has sent a very special gift to mark the occasion — as the bbc�*s tim allman explains. accompanied by two fighter jets from the country's air force, the liberator of brazil returns home. or at least part of him. this, at first glance, looks like a sporting trophy of some sort but it is in fact an urn containing the embalmed heart of don pedro, the first emperor of an independent brazil. translation: it is with great satisfaction that we gather i as part of the celebrations of brazil's independence l and to receive this important relic that represents - beyond bravery and passion the immeasurable strength| of our first emperor. it was in september 1822 that don pedro declared brazil's independence, and declared himself emperor of the country.

his rule was relatively short lived and he died in portugal 12 years later, but he had become a symbol of the strong bonds between the two countries. translation: the return of the heart of don pedro | is for all of us, and we hope for brazilians as well as i a moment of great happiness. his heart will remain in brazil for three weeks. local officials say that it will be treated like a living head of state with full military honours. the spirit of an emperor and the empire he once ruled, reunited at last. tim allman, bbc news. a reminder of our top story. the american space agency nasa says it'll go ahead with its launch of a giant new moon rocket next monday. the uncrewed maiden test flight for the artemis i mission will send a small capsule

around the moon before it returns to earth. that's it from me. hello. many of us can expect some quite murky conditions at times during tuesday. that is one symptom of some very warm and humid air wafting its way across the country. there will be a few showers, equally some spells of sunshine but generally quite a lot of cloud. low pressure in charge at the moment, one wriggling weather front which will bring some rain during tuesday night and into wednesday, some other weather fronts focusing some showers in places, but this very humid air picking up a lot of moisture over the atlantic as it moves in our direction, so that will bring some rather misty, murky conditions, some fog patches to start tuesday, particularly murky for the coasts and hills of wales and the south—west. we will see quite large amounts of cloud on tuesday, bringing some rain at times,

but a little sunnier in the south east. a few showers for western scotland in the afternoon. but it will feel warm and muggy, 26 for london, 27 in norwich, and that muggy feel certainly continues into the night. we will see a lot of cloud, still some mist and fog and heavier bursts of rain starting to develop especially across some western and northern parts, but overnight lows, 14 in glasgow, 18 in cardiff and in london, so to start wednesday, a lot of cloud and some outbreaks of rain. there is uncertainty as to where exactly this line of wet weather will end up, pulses of heavier rain moving along it, but to the north and west of that band of cloud and rain, it will feel cooler and fresher to the south—east of that band of cloud and rain, while the heat will be building up to around 29 degrees in parts of east anglia. but that band of cloud and rain in association with

this weather front should shift its way south—eastwards into thursday, probably not much rain left on it by this stage. could just see a few showers into the south—east corner, we will keep an eye on that. more cloud working into northern ireland and western scotland with splashes of rain, but for many there will be sunshine and a fresher feel by this stage, still 27 degrees by this stage in london, but elsewhere generally high teens or low 20s. as we head into the weekend, a bank holiday for many, and there will be a lot of dry weather around. more cloud and may be some rain for scotland and northern ireland, and a fresherfeel for all of us.

this is bbc news, the headlines: the american space agency nasa says it'll go ahead with its launch of a giant new moon rocket next monday. the uncrewed maiden test flight for the artemis one mission will send a small capsule around the moon before it returns to earth with an ocean splash—down. donald trump has asked a federal court to temporarily block the fbi from reviewing the material it seized from his florida home two weeks ago. he's also asked the court to appoint what's called a special master, usually a retired lawyer orjudge, to act as a watchdog. china has introduced emergency measures to save electricity as the country battles the worst droughts in some places in more than half a century. shanghai is switching off its famous waterfront lights, many factories have

been ordered to close, and shops are restricting their normal opening hours.