this is bbc news, i'm shaun ley. the headlines at 10: an admission that flying in the uk may have to be restricted because of climate change. campaigners say a rethink is essential. we know that we have god to reduce oui’ we know that we have god to reduce our emissions urgently and radically and expanding them is going in the opposite direction. itjust doesn't make sense. the united states is preparing to impose tariffs on almost all chinese imports. theresa may is expected to give more detail in the coming days about leaving downing street, according to the most senior conservative backbencher. fly—tipping in england is up by nearly 40% in the past five years. and councils say nobody has yet been given the maximum sentence. meet britain's new poet laureate, the west yorkshire born writer, simon armitage.

and the the travel show visits the nazi bunkers of france. that's in half an hour, here on bbc news. good morning and welcome to bbc news. concerns over climate change might restrict the growth of aviation in the uk, the government has admitted. a senior civil servant says ministers may have to review their strategy, including plans to expand heathrow. it follows a recent warning from the committee on climate change, which advises government, that the planned increase in aviation would need to be curbed to control emissions of c02. our environment analyst roger harrabin reports. flying is on the up and the government has been planning for it to continue to grow. what about climate change, you might ask? under current policy,

industry will have to cut more greenhouse gases so aviation can expand. but the government is now considering a plan to virtually eliminate emissions by 2050. and a civil servant has admitted in a letter to a green group that it may have to take note of advice from the independent climate change committee, saying that although people could continue to fly while meeting climate change targets, it was not possible for aviation to keep on expanding. in the end, i think the logic of this is completely inevitable. we know that we have to reduce our emissions urgently and radically and expanding them is going in the opposite direction. itjust does not make sense and i don't think the public want to see the government committing to a plan that is inconsistent with a safe and prosperous future for all of us. any policy change may affect controversial plans to expand heathrow. it definitely means the government will have to think hard about whether aviation can continue to grow at a time of what parliament

calls a climate emergency. so could there be a time when we no longer expand air travel and in fact cut back on catching a flight? i'm joined now by the independent‘t travel editor simon calder. good to see you again this morning. how fast is aviation projected to expand at the moment? if you look worldwide, it is five to 6% every year. that is compounded, of course, and amounts to doubling in 12—15 yea rs. and amounts to doubling in 12—15 years. the uk, because it is more mature, as they say, is not expanding at such a rate. but clearly, we a re expanding at such a rate. but clearly, we are not losing our appetite for flying. london clearly, we are not losing our appetite forflying. london remains absolutely the world capital of aviation, we're ahead of new york, tokyo, paris, dubai, beijing. well over 150 million people flying in and out of the capital's airport

this year. and of course, we have the ongoing battle over expansion of heathrow. that is going to take quite a long time before we get to that stage. what are the big environmental concerns about aviation impact? shipping, for example, is not regulated at all at the moment. that contributes to c02 as well. it is a range of things. aviation, unlike shipping, has more than just the effects of pumping very large quantities of c02 into the atmosphere. it also causes, partly because of the traffic it generates, all kinds of air quality issues near airports, and noise. but looking at the government's view of this, the department for transport says that the expansion, for example, of heathrow, by building a third runway, will bring great benefits for businesses, the communities that it serves and, at the same time, it will meet the government's climate change obligations. but this latest report suggests that actually, if by 2050

we are supposed to be zero carbon, thatis we are supposed to be zero carbon, that is very difficult to see how that is very difficult to see how that will work with the present aircraft technology. interesting, because whenever you have to find alternative routes, you often can, at least for shorter journeys. inside the uk... i was a bit surprised the other day to discover you can get a train from rome to sicily without getting off. 0ne you can get a train from rome to sicily without getting off. one way to skina sicily without getting off. one way to skin a cat, as they say. for a longer haulflights, to skin a cat, as they say. for a longer haul flights, the options are quite limited. you travel a huge amount for your job. quite limited. you travel a huge amount for yourjob. certainly, and ifi amount for yourjob. certainly, and if i can travel by terrestrial means, i will interesting to note that this week, eurostar made it more difficult for people to buy through tickets from london st pancras through the channel tunnel through brussels to germany, switzerland and austria. that would appear to be switzerland and austria. that would appearto bea switzerland and austria. that would appear to be a backward step up but iam very appear to be a backward step up but i am very clear about what i do. i try to fly on the most modern aircraft, far less polluting. some people actually say that people who

fly on 7a7s, 20th—century technology, should maybe pay a little more than people flying on more modern aircraft like the air but a350. always travel economy, because a boy you have got an impact on the environment, it is not as bad as it would be by travelling on business class or first class. those are far more damaging per passenger. and my own little carbon offset scheme, the least damaging form of motorised transport is hitchhiking, so motorised transport is hitchhiking, so for every flight i dig, i try to hitch at least one left. if you see simon on the road with his comment, it really is simple if you can, stop and give him a left. thank you so much, i do hope you are not hitching back from salford this afternoon, otherwise, enjoy the walk! two men will appear in court later as part of the investigation into the murder of journalist lyra mckee. the men — aged 51 and 38 — have been charged with riot, petrol bomb offences and arson of a hijacked vehicle. ms mckee was shot dead while watching disturbances

in londonderry last month. dissident republican group the new ira said its members carried out the killing. the chairman of the 1922 committee of backbench conservative mps, sir graham brady, says he expects theresa may to give more detail in the coming days about her plans to leave downing street. the prime minister is due to meet the committee's executive next week. 0ur political correspondent, jessica parker is here. goodman. another weekend, another story about how long theresa may is going to remain prime minister. this feels familiar territory. what is new? sirgraham new? sir graham brady talking a bit about why he understands perhaps by theresa may has not yet wanted to set out exactly when she will leave. we will hear from him set out exactly when she will leave. we will hearfrom him in on that set out exactly when she will leave. we will hear from him in on that and just a moment. but you're right, we have been here before, have we not? we talk quite regularly about if you things, labouring conservative party talks resuming a new brexit deal or how long theresa may has got left in

downing street. what we know about theresa may is she has said she will go once brexit phase one is delivered, the withdrawal agreement, basically. but for some tory mps, they are saying we don't know when there that is going to happen, if at all. therefore, they want some kind of unconditional timetable for her departure. let's have a listen to sirgraham departure. let's have a listen to sir graham brady, the chair of the backbench1922 committee, that committee of conservative backbench mps. he has been explaining that he may be does understand the reticence on this issue. i don't think it is about an intention of staying indefinitely as prime minister or leader of the conservative party. the reticence is the concern that by promising to go on a certain timetable may make it less likely that she would secure parliamentary approval for the withdrawal agreement rather than more likely. so, ithink so, i think sir graham there alluding to the possibility that, should theresa may say, yes, fine, i shall go on this date, there are

those who don't like her withdrawal agreement and will say great, we will wait for that to happen. we will wait for that to happen. we will not support the agreement in the meantime. theresa may, the prime minister, is quite aware that what she really wants to do is secure some kind of brexit legacy. i suppose the logic is to say, well, iam i suppose the logic is to say, well, i am staying until you full from ideal, if you really want to get it of me, vote for this. but it has not worked so far. presumably, patients is running out for a lot of her backbenchers. sir graham brady was also saying it is not a job where people are fighting to succeed. although he did not rule themselves out. there is a lot of unofficial electioneering going on. and some effectual electioneering —— official electioneering. if she does give a specific date, what little authority she has left could vanish. that is probably the fear and what sirgraham that is probably the fear and what sir graham brady was talking about

here also said in this interview that he believed at this meeting it would be strange if it did not resolve in what he called a clear understanding of her departure plans. there is a lot of pressure on her to now get pretty specific in terms of when she might go. but look, as we were talking about a moment ago, we've been here before. theresa may is not one to spill the beans on something unless she really has to. it seems pretty clear from downing street at the moment, they do want to hang on, maybe have another go at trying to get this withdrawal agreement passed in one form or another. ‘s jessica, withdrawal agreement passed in one form or another. ‘sjessica, thank you very much. they're the world's two biggest economies, engaged in a trade war that's threatening to escalate. china's vice premier has denied trade talks with the united states have disintegrated, despite the failure of discussions in washington. liu he said that setbacks were inevitable. the two sides have agreed to meet again in beijing. the united states has now imposed 25% tariffs on some chinese goods and is working to impose tariffs on almost everything it imports from there. here's our north america editor, jon sopel reports.

a bell can signify celebration, but it also can ring out a warning and today it felt like the latter after donald trump imposed much higher tariffs on chinese goods coming into the us, and fired out a warning to the world's second biggest economy that he is digging in for the long haul. he tweeted. .. the chinese are in washington in the hope of concluding a deal. their lead negotiator said increasing tariffs hurts everyone. translation: i came here with sincerity in these special circumstances, to engage in rational and candid exchanges with the us side. of course china believes raising tariffs in the current situation is not a solution to the problem. it will be harmful to china, the united states, and to the whole world.

donald trump has often been accused of being too trigger—happy when it comes to tariffs, too keen to start a trade war. but on this, significantly, the democrats are behind him, they are urging him to remain tough. when it comes to trade and china, there is a feeling here that they have been allowed to get away with too much for too long. the talks have broken up for the time being without agreement the treasury secretary sounding decidedly guarded about how they had gone. they were constructive discussions between both parties, that is all we're going to say. thank you. this factory in the south of china makes wi—fi routers, millions of them, many earmarked for the us market. now, with new tariffs, those sales are in doubt. tp—link, like everyone else around the world, thought a deal was imminent, that the two sides would bridge their differences. but last weekend, the us president accused beijing of ratting on a deal to open up the chinese economy to us goods.

in the middle of this are us farmers whose products have been hit by retaliatory tariffs and they are desperate for a trade deal as soon as possible. we have almost waited almost too long, so the only thing that is really going to help us is if he makes a deal and china comes in and they guarantee to buy x amount of bushels. and us consumers, who are now going to find a range of imports costing way more in the shops. and if this carries on, it will be the global economy that will suffer. jon sopel, bbc news, washington. the united nations says the houthi rebel group in yemen is planning to withdraw its forces from three key ports including the one that handles most of the country's imports. the un general overseeing the deal said the rebels intended this is a lifeline for yemen's

hungry people. food aid passenger here keeps more than 20 million alive. this and the two smaller ports nearby have been occupied by the rebel forces since 2014, and then bombed and blockaded by the saudi led coalition. the result of the fighting has been what the united nations calls the world's worst humanitarian crisis. under a ceasefire agreed last december, the rebel group was supposed to hand over the port to the un within weeks. that would have allowed peace talks to proceed. however, continuing fighting around the city has blocked progress until now. the houthis have announced a unilateral withdrawal but yemen's recognised government has criticised the move, saying military withdrawals need to be verified and further steps need to be taken, such as clearing minefields. if everything goes to plan comedy western— backed

coalition could make similar moves, which might then open the way to peace talks. yemen is delhi country at war, and in desperate need of aid. fully opening these ports would allow some of that suffering to be eased. fly—tipping has increased by almost 40% in the past five years according to councils in england. the local government association said nobody convicted of fly—tipping since 2014 had been given the maximum penalty of a £50,000 fine or a year in prison because of funding pressures. the government says they've strengthened local authorities‘ enforcement powers. i'm joined now by martin tett, chairman of the local government association's environment board. thank you very much for being with us thank you very much for being with us this morning. how big a problem as it getting? it is getting worse. asa as it getting? it is getting worse. as a council leader, the second—biggest topic i get in my e—mail inbox, besides potholes, is fly—tipping. almost any part of the country, you will find sacs abandoned at the side of the road,

whether towns, villages are city centres. and it is a real problem for local people. you have to clean it up, presumably, if people don't play the rules, you have still got to pick up the rubbish does the same as if they did? that is right. 0bviously as if they did? that is right. obviously not on private land but on public land, like roads and pavements, alleyways like that, we are responsible. it costs councils, thatis are responsible. it costs councils, that is taxpayers listening to this programme, something like £60 million per year, of their money, oui’ million per year, of their money, our money, to do that and it should not be necessary. why is it not being enforced in times of fines and prison sentences? is that down to you or the police? councils are really determined to crack down on this and additionally expensive to do this. there is a high threshold of proving guilt on this. councils do do this. are small offences, we can issue on the spot fines. for the major offences, and quite often it

is criminal gangs organised large, industrial scale fly—tipping, we ta ke industrial scale fly—tipping, we take this to court and one of the problems we are finding is although courts can issue fines up to £50,000, so far nobody has actually been penalised like that. they get off with much smaller fines and it is not sending the message to the industrial scale fly chippers that we need, that this is not acceptable. are you setting the right message? i notice on your own council area, you have reduced the opening hours of one third of your recycling centres. a couple are closed altogether on wednesdays and thursdays. this makes it more difficult for people to obey the rules. councils are hard pressed financially. 0n rules. councils are hard pressed financially. on your own programme, you have often talked about financial pressures on local councils. in my own area, we had to find 1.7 million, meaning we have had to reduce the opening hours midweek an tuesdays and wednesdays, which are the quietest days. but that doesn't excuse normal residence, quite frankly, do not fly—tip. most people, if they know the tip is not open on a particular

day, they will wait until the day when it is open. what we are seeing across the country is the growth of these industrial scale criminal gangs. quite often you will see the white van, and it is nearly always a quy white van, and it is nearly always a guy full stocked 25 quid, cash in hand, no questions asked, take away rubbish. you think it is going summer responsible but attains up being tipped in a country lane, sometimes miles away. these are the quys sometimes miles away. these are the guys we need to crack down on and we need fines issued by magistrates to do that. martin, thank you very much. the headlines on bbc news: concerns over climate change might restrict the growth of flying in the uk according to a senior civil servant. theresa may is expected to give more detail in the coming days about leaving downing street, according to the most senior conservative backbencher. president trump has ordered tariffs to be imposed on almost all chinese imports after a second day of trade

talks ended without agreement. sport and for a full round up from the bbc sport centre, here's mike bushell. good morning. what a week it has been. i know, and it does not end there. we may have seen drama, unprecedented scenes at the champions league, europa league and in football later today, it is the play—offs starting. also the title race in the premier league decided tomorrow. also, away from the football, a field of international stars this evening as two european giants meet in newcastle later today in the final rugby union's biggest clu b in the final rugby union's biggest club competition, the champions cup. lei nster club competition, the champions cup. leinster are defending drum pens and are hoping to lift the trophy for a record fifth time. saracens have won all eight of their matches coming into the competition. they are in for their third title in four years. we have a lot of respect for lei nster we have a lot of respect for leinster and the quality of the player. the quality they have. stacked full of international

players, british lions, the quality of the coaching they have. it is obvious when you analyse them boast they have much experience. 0bviously, they have much experience. obviously, we have got some big match experience ourselves and i think that is why everyone seems to be so excited about the final. when you go for matchups across—the—board, both teams are stocked full of internationals and lions. if there is an overseas player there, he is usually an international is well. i think it is a fantastic testimony to both squads that they have both reached the final and it is one everybody is looking forward to, i think. the second—tier competition was decided last night and an all french affair was won by claremont, who beat lara shell 36—16, with a scotla nd beat lara shell 36—16, with a scotland scrum—half getting 18 points and wesley scoring the last of their three tries. their third cup challenge title. the tottenham manager says he would be stupid to stay at the club

without a clear plan for the future. he has been in charge forfive years and says he will be looking for a the chairman this summer that spurs are serious about building and investing in their recent success, namely getting the champions league final. the race to promotion, as i mentioned, to the premier league ta ke ce ntre mentioned, to the premier league take centre stage with the first legs in the championship semifinals, aston villa facing west brom at lunchtime both the derby take on a leeds side who for much of the season looked to be heading for the automatic promotion places. we must not forget they have beaten us twice, that they vanished points above us in the league stopped a strong team. 0ne above us in the league stopped a strong team. one point, they looked pretty certainties to be promoted. the competition is great and they have dropped out of that but i still respect them hugely. we prepare as we would for any team. we watch them, we focus on ourselves and that is all with the most important thing. the scottish premiership has already decided but third place is very much still up for grabs with a europa

league spot up for grabs aberdeen have moved into that position. it — one lead over herts. this was the decisive goal. lewis hamilton will be one of the men to catch an qualifier this afternoon for the spanish grand prix. his mercedes looks like being the fastest car at the circuit but his was his team—mate who set the pace in practice. mercedes have finished 1—2 of all of the races over the season. coverage on the bbc sport website. and it is the last 16 in rugby league was meant challenge cup this weekend with three matches taking place today. the pick of them looked to be bradford bulls looking to upset leeds rhinos. commentator: gets it away... now, the world number one, novak jock pitch, please number 18 for a place in the final this afternoon. roger federer in three sets, with

too many points against an postop nad ali will play stefan and the other semifinal. and hallett remains on course to claim the world number one spot after beating belinda. the victory would take a above naomi 0ni sarkar in the rankings. after a wash—out on wednesday, england will be open for son in southampton today for the second one—day international against pakistan james vince one—day international against pakistanjames vince pressed his case for a world cup spot on his own ground if his team—mate failed to recover from a stomach injury full stops becoming trend when this series and when i do get another opportunity, try and stake my claim and try to do as well as i can to try to force my way into that world cup squad. as mike great britain —based germany in the opening game of the ice hockey championship of slovakia this afternoon commentary

from 3:15pm. it is the first time in 25 years that britain had competed at the top level of the sport and they will face the powerhouse nations, the usa and canada, later. i don't think we have any worry or pressure. i think we just have to keep together, keep getting better each game and using each game to maybe be that little bit faster, that little bit quicker on decisions and learning as we go that is the most important thing. we have never been at this level is a group. as my uncharted waters. season. thank you very much. simon armitage has been named as the new poet laureate, a role that lasts 10 years. he says he wants to use the role to ensure poetry embraces major global issues, including climate change. here's our arts editor, will gompertz. i had wanted to offer my daughter a taste of the glacier... simon armitage reading the present, his poem about climate change. i think it's absolutely essential that poetry responds to that issue and i'd like there to be some kind

of platform or competition or award that recognises writing around those themes, those topics. time in the brain cells sweating like a nail—bomb, trouble with the heartbeat spitting like a sten gun, cut to the chase, pick up the pace; no such thing as a walkabout what, simon, do you think the role of poetry is in contemporary society? it is more valuable and more relevant than it has ever been in this world that we live in, which is a very confused and confusing place — over—information, over—communication — that poetry is time out from that. did it cross your mind even for a moment when you were offered the post to say, actually, i don't think this is one at this stage, for a white male? maybe somebody from a different point of view or background would be better for this role at this moment? i come from a sort of an outside position.

i've got no formal education in english literature at all. i understand, to a lesser extent, what it means to come from outside the establishment, even if i have arrived at a certain established position. i'm joined now by the new poet laureate himself, simon armitage. congratulations. thank you. it is a strange role because it is historically seen as a reward for old men in long service, particularly those who write poems about the great and good for the great and good, but it is evolving. how do you see it? yes, it has really changed. if you go back a few hundred years, it was a very mysterious post. it was a job for life and, on occasions, people would be obliged to write, to commission for royal occasions. there is still some of that element attached to it,

but it has really been modernised over the last two decades, since it became a decade—long appointment. it is more about rolling your sleeves up, these days. some elements of it are ceremonial, ambassadorial, but there are other parts of it which are to do with the promotion of poetry and celebrating poetry, and trying to encourage younger writers to try their hand at it, to identify people who might have a future in poetry you talk a lot about the book and the survival of the book and the way the book is adapted, how has poetry adapted to the modern age, do you think? how much more are we engaged with poetry, even if we are perhaps not conscious of it as a poem? poetry is everywhere. it is difficult to escape. it is on signage, adverts, magazine and newspaper headlines. it not —— it might not be the end of poetry that

we expect to see any poem, but poetic techniques, things devised to convince us of certain ideas, are absolutely everywhere. poetry itself has responded to the modern age by finding new methods of transmission and broadcast. you know, the internet has completely transformed poetry, as it has transformed pretty much every other art form, and most aspects of life as well. what sort of opportunities do you think this will create? with the title poet laureate, that might open if you doors in terms of the sort of lobbying, if i can put it like that, you do on behalf of poetry and the work of your fellow poet. that is the key, actually. the fact that it isa the key, actually. the fact that it is a royal appointment, you know, just hopes to raise —— helps to raise the prominence of this post. if the role is about making noises, asking questions, you know, lending

asking questions, you know, lending a voice to certain ideas and ideologies, then that association with the monarch, i suppose, is probably the reason miami talking to you this morning. fair point, that probably is. when else would be invited poet on a news programme? you're absolutely right. fair comment. it is a busy morning, saturday, for a lot of people with television on in the corner of the kitchen, somebody screaming that they cannot find their khakis, somebody laid for something. could you reader something? you say that poetry should not just you reader something? you say that poetry should notjust be you reader something? you say that poetry should not just be for those calm times but those grating times as well. yes, it is actually a poem about climate change and clean air, something that you are talking about earlier. it is called in praise of air. i write in praise of air. i was six or five when a conjurer opened my knotted fist

and i held in my palm the whole of the sky. i've carried it with me ever since. let air be a major god, its being and touch, its breast—milk always tilted to the lips. both dragonfly and boeing dangle in its see—through nothingnessae among the jumbled bric—a—brac i keep a padlocked treasure—chest of empty space, and on days when thoughts are fuddled with smog or civilization crosses the street with a white handkerchief over its mouth and cars blow kisses to our lips from theirs i turn the key, throw back the lid, breathe deep. my first word, everyone's first word, was air. all you thank you very much for the love and congratulations. thank you very much. let's take a quick look at the weather. the weather is starting to settle down as high pressure begins to build this weekend. there will