Business. Our mission is to deliver brexit on the 31st of october for the purpose of uniting and re energising our great united kingdom. He says he has plaque, nerve and ambition. Our country does not need arm waving bluster. England do battle against ireland on the second day of the lords test. And we reveal the nominations that are in for this years prestigious mercury prize. For this years prestigious mercury prize. And coming up on sportsday on bbc news, Geraint Thomas drops to third overall at the Tour De France but remains 95 seconds behind leaderjulian alaphilippe. Good evening. Parts of britain have basked in record breaking temperatures today. The thermometer rose to 38. 1 degrees in cambridge, making it the hottestjuly day and the second hottest day the uk has ever recorded. Thousands did enjoy the sunshine on parks and beaches, but thousands more were left stranded on train carriages and platforms as the rail network buckled under the heat. The trains broke down and passengers had to be rescued. Falling power cables sparked blindside fires. For commuters that brought disruption, delays and cancellations. The west coast, the midland, the east coast mainlines were all blocked by rush hour. Andysjourney mainlines were all blocked by rush hour. Andys journey from leicestershi re rush hour. Andys journey from leicestershire took twice as long and ended in fire and fury. All of a sudden, bang, and it was like these ca bles sudden, bang, and it was like these cables hitting windows, people screaming on the train. And they kept putting the air conditioning on and turning it off to conserve power. It was at least 45 degrees on that train, an absolute nightmare. Im stuck in a tunnel . Stuck in a tunnel. Birminghams trams were halted because of the risk of rails buckling. There were problems all day, but the wires coming down because the real chaos. Kings cross is cancelled, i live in the midlands and we always struggle to get back to the midlands, so my wife is getting our two daughters out of bed andi getting our two daughters out of bed and i am heading west and she will catch me at newbury. We are so used to dealing with the heat, but how do they manage on the continent when it is hot . This is not quite but almost unprecedented. I have been working oii unprecedented. I have been working on the railway for ten years and i have never encountered temperatures like this. Some set out early to enjoy the fine weather. Brightons beach was busy with plenty of people try to cool off. It is lovely. Take the baby down the beach every day. Some International Visitors were not so impressed. Back home in argentina it is hotter. Hotter than this . Yes, 47 degrees, so this is like heaven for me. Cambridge topped the temperature chart at 38. 1 degrees, the highest ever recorded injuly. The heat was on at the royal welsh show. And scotland saw its hottest day of the year so far. London lie dos were also packed, police had to manage the queues. After the heat came the rain and even hailstones here in essex. It was followed by pretty impressive lightning. The strike sparked this fire in south west london. It has been a crazy day of extreme weather and some of our infrastructure simply could not cope. There is still some disruption on the network tonight. Tom burridge is at st pancras station in central london. Why could the network not cope . Before today we we re the network not cope . Before today we were warned that the steel on the rail lines could get so hot, it could expand so much, that realise could expand so much, that realise could buckle in the extreme heat. There were speed restrictions and reduced services and that did not happen, not a single rail line buckled. But overhead lines supplying the electricity to trains sagged in the heat and they caused damage to the overhead lines. The worst damage is on the line between the station and the east midlands. The damage is so significant they are not confident they can repair it overnight tonight. There will be a reduced service in the morning. They are more confident they can get the damage repaired between kings cross and the north east and scotland. Evenif and the north east and scotland. Even if the damage is repaired, there will be difficulties tomorrow. The railways are a complex matrix of moving parts. Chaos like today means trains and train drivers end up in the wrong place and there is a juggfing the wrong place and there is a juggling act to be done to get eve ryo ne juggling act to be done to get everyone back in place to get a normal service back up and running. It is the holiday season, tomorrow isa it is the holiday season, tomorrow is a friday and people will be getting away to different parts of the country. I anticipate some problems in places tomorrow morning and the extent of the problems will depend on how the repair work goes tonight and how quickly the system can be the morning. The heat has been even more intense across much of continental europe. There have been record breaking temperatures in belgium, the netherlands and germany. In paris it hit the highest ever recorded in the french capital. Lucy williamson is there. People are still out on the terraces late tonight, but the clouds have been gathering and people have been sharing their excitement on twitter at feeling the first drops of rain. The heat wave is expected to break this weekend, but it has been very hot here today. The city of light has become the city of heat. 42 degrees, just bearable if you are mostly underwater. The government has repeatedly warned people not to stay out in the sun, but with offices and schools closing early, and most homes without air conditioning, not everyone is listening. Its difficult to enjoy it. Here we are in this most amazing city in the world and its tough to want to go and do much. Its very hot. The summer in brazil is not like this. Its hot too but here its too much. This is a short, sharp spike in temperatures but what a spike it is, the heat unremitting now for several days and nights and in a city not built for this kind of weather. For many people air conditioned shops or public fountains are the only place they can find respite. The hot weather is putting pressure on farmers, already facing a drought. This farmer says the grass his cows should be eating has died in the field. He is using up his stock of winter feed to keep them alive. Translation our fields have become as dry as doormats. We have never seen anything like it. Its like the south of france. We have longer periods without water, we are running at a 50 loss. Well have to adapt and find solutions. The heatwave broke temperature records across europe yesterday and then broke them again today. Germany soared to 42 degrees as people flocked to lakes and fountains. In belgium the village of kleiner bruegel topped a0 degrees along with several other places. And in the netherlands the hottest day for more than 70 years saw the red cross handing out Emergency Water supplies to the homeless. This is the second heatwave to hit europe in a month. In paris, where streets and monuments have weathered centuries of change, some wonder if the weather itself is changing. Lucy williamson, bbc news, paris. The current weather has been driven by High Pressure and the jet stream dragging tropical, Continental Air from north africa, but scientists point to the link between extreme weather events and climate change. Our science correspondent victoria gill has spent the day at kew gardens in west london where the mercury hit 37. 9 degrees, making it the second hottest place today. She has been looking at the connection between extreme weather and climate change. Temperatures were the highest in the uk today at kew gardens, a scorching 37. 9 degrees, so people came prepared. Scientists are now confident that heatwaves are more likely and more extreme because of climate change. The fact we have seen these temperature rises, the baseline temperature has increased by about 1 degrees baseline temperature has increased by about1 degrees globally baseline temperature has increased by about 1 degrees globally since preindustrial times and it is that level that means in normal conditions we would see heatwave conditions we would see heatwave conditions and temperatures about average, but add that extra layer of heat and that is when we start to break those records. Globally over the last century the trend is clear, it has been heating up. The last four years were the warmest ever recorded. But the future increase depends on Global Carbon emissions. Current targets that governments have signed up to to limit those emissions will see rises of 3. 3 degrees by 2100. Under the paris climate agreement, the more ambitious deal signed up to buy almost 200 countries in 2016, the aim is to keep it under 1. 5 degrees. This is the hottest house in kew gardens where all the desert plants lived. Even for these plans they have opened all of the windows to get ventilation in. According to my thermometer it is now more than 39 degrees in here. These plans are adapting to the hottest, driest conditions on earth. It is those adaptations that scientists are studying in order to work out how we might grow more drought resistant pla nts might grow more drought resistant plants in the future. These plants are succulent plants because they have evolved over millions of years to have specialised water storage conditions. The part in the middle is where the water is stored. You can see how much water there is in there. While the collections look exotic, they can contain plants that could eventually become a familiar food crops. Days like today tell us that if we carry on doing what we have done in the past, then that will not work. We are going to have to adapt what we do and adapt the crops we grow, and we need to be exploring and researching and we need to understand our options so we can change as climate begins to change. With the gardens baking in the sun today the preparation continues for a warmer, more uncertain climate in the future. Borisjohnson has Boris Johnson has promised borisjohnson has promised a new golden age during his first statement to the house of commons as Prime Minister. He repeated his commitment for the uk to leave the eu by october the 31st and said although he would work flat out to get the deal, the Withdrawal Agreement negotiated by theresa may was dead. The labour leader questioned whether borisjohnson overestimated his abilities as Prime Minister. Here is laura kuenssberg. Quite the occasion, a government more or less created overnight, a cabinet ina more or less created overnight, a cabinet in a rash. Are you looking forward to your first big meeting, secretary of state . So eager to get to the table there was almost a traffic jam to the table there was almost a trafficjam in to the table there was almost a traffic jam in number ten. To the table there was almost a trafficjam in numberten. It to the table there was almost a trafficjam in number ten. It is just before 8am and the cabinet are gathering. This is a new government that wants to show they mean business. And there he is. In the chair he has coveted for so long. Borisjohnson, a politician who divides, trying to pull a government, a party and a country together. It is wonderful to see this new team assembled here, reflecting the breadth and depth of talent in our party. The words familiar already were a lot less used to the show of unity. Brexit, the number one task. Brexiteers in plum jobs. It is the number one task. Brexiteers in plumjobs. It is a the number one task. Brexiteers in plum jobs. It is a very positive and united cabinet and fully supporting the Prime Minister. The promise to leave in less than 100 days, the task. Leave in less than 100 days, the task. An leave in less than 100 days, the task. An excellent cabinet meeting, very positive and enthusiastic and we are ready to go. Even without a formal deal if needs be. Feeling very good and energised. Yet no Prime Minister can be master ofa yet no Prime Minister can be master of a government without mastering the commons. He has arrived for big moments before but never like this. Relishing making an entrance. Statement, the Prime Minister. Our mission is to deliver brexit on the 31st of october for the purpose of uniting and re energising our great united kingdom. He wants to leave the eu at halloween but once it his way. The way to the deal goes by way of the abolition of the backstop. He wa nts to of the abolition of the backstop. He wants to make that guarantee against a hard border in ireland disappear, precisely what the eu says it will never do. I hope they will rethink their current refusal to make any changes. Get used to seeing this. These are the sceptics and doubters. Pointing the finger already. The country is deeply worried that the new Prime Minister overestimates himself. The dynamic between this pair, the core of our politics now. Our country does not need arm waving bluster, but competence, seriousness and after a decade of divisive policies for the few, to focus for once on the interests of the many. There will be plenty more jests. We are the party of the many and they are the party of the many and they are the party of the few. We will ta ke are the party of the few. We will take this country forward and they, mr speaker, will take it backwards. Today tory mps delighted at Boris Johnson the bulldozer. Here their roars. Much of the country might ta ke roars. Much of the country might take a different view. He wants to drive as of the political edge and he does not even know the impact or the damage it will cause. Will he bring back any brexit plan and put it to this house and put it to the people . No to that, the allies on board for now. We need to deliver brexit with a deal, but we must be prepared for no deal if necessary. Not her problem any more, watching more straightforward game today, former colleagues into. Theresa may at the cricket, able to laugh now. No such luck for her successor. The opposition is mobilising against borisjohnson. Opposition is mobilising against Boris Johnson. Have a general election, elect a new parliament, election, elect a new parliament, elect a labour government. The removal vans have done theirjob, the new Prime Minister slipping in at the back. Borisjohnson tonight is at home at number ten. Laura kuenssberg, bbc news, westminster. One of Boris Johnsons first acts was to guarantee the rights of citizens living in the uk, but that has caused problems in his own party with some insisting it would require a change in the law. The new Prime Minister says he is also considering an australian style points based immigration system. Our home editor mark easton explains. With politics so volatile, many eu nationals living in the uk watch on anxiously. Today, borisjohnson offered an unequivocal guarantee that they would be allowed to remain even in the event of no deal. But a conservative mp whos been complaining on the issue is worried. There are no plans to make it the law. Some Member States like spain have already passed legislation to protect british citizens living, working, studying and retired there. But its entirely contingent on our passing first legislation to protect their citizens. Is it not time we took back control of our immigration policy . Controlling immigration was one of borisjohnsons battle cries during the brexit referendum. In suggesting britain might introduce an australian style points system for new migrants, mrjohnson is echoing the demands of nigel farage, both as leader of ukip and more recently the brexit party. But hold on. Australian style points system . Havent we heard that before . Everybody coming to work in britain will need the right number of points to prove that theyve got something to give. Back in 2007, labours immigration minister announced an australian style system for non eu migrants coming to the uk, and Migrant Workers still need to satisfy a points system to get a visa. Once out of the european union, the conservatives immigration proposals would extend those rules to all foreign nationals. The big challenge with points based systems is that because they are more centrally planned, the government has to know things like how many migrants the economy needs and what kind ofjobs most need Migrant Workers, and in practice thats actually really difficult for economists to work out. Mrjohnson says no one believes more strongly in the benefits of immigration than he does. He wants to scrap the governments commitment to reduce net migration to the tens of thousands and has suggested an amnesty for those in the country illegally. Mrjohnson wants to sound tough and conciliatory at the same time, appealing to people on both sides of the migration debate to those who voted for the brexit party and want to see cuts to immigration, and to those in business and Public Services who argue britain needs a reliable source of foreign labour. What does he really think . We need to see the small print. And thats a view echoed by many who say that so far the Prime Minister is offering rhetoric on immigration policy, but little in the way of real detail. Mark easton, bbc news. Borisjohnson Boris Johnson told borisjohnson told parliament Boris Johnson told parliament the government must turbo charge preparations for leaving the eu without a deal to make sure there is as little disruption as possible to national life. A no deal brexit, if the uk and eu are unable to reach an agreement, the so called divorce process , agreement, the so called divorce process, would mean current arrangements with the eu would cease straightaway. They would be no transition period. Our economics correspondent looks at the possible consequences of a no deal brexit and how prepared businesses are for that outcome. Here at this luxury bed manufacturers they have been watching the new Prime Minister closely. Talk of a no deal might just be a negotiation technique, but having to ship in steel from spain, timberfrom having to ship in steel from spain, timber from latvia and having to ship in steel from spain, timberfrom latvia and horse hair that has been processed in switzerland means