david shukman, bbc news, in geneva.nings from the united nations have any effect on what people put in their baskets? our correspondent sima kotecha has spent the day with one family, finding out whether it's making them rethink. so we buy our fruit from an organic fruit company, which delivers every week. we go and collect our vegetables from the farm. if we can eat a plant—based diet... helen's been a vegetarian for most of her life. for herfamily, fighting climate change is a daily priority. we drive a few miles to get our vegetables — or cycle even — rather than eating food that's come from china or america. so all the carbon in the travelling is much less. and i also think it's important to build localfood production. is this something that people should really be worrying about? because there are people out there who genuinely believe that there are more important things in the world than climate change. i can't think of anything more important. we are talking about, in the near future, potentially not being able

the bbc's science editor david shukman reports.of david: a wall ust smothers the parched fields of oklahoma. the planet is heating up, which may make it harder to grow the food we need. just as the world population keeps increasing. there will be 2 billion more of us by the middle of the century. at the same time, up to one third of all food is wasted. as it rots, it releases gases at raise temperatures even more. >> this exacerbates climate change. david: the u.n. climate panel highlights the challenges in a major new report into how we are damaging the land we depend on and what that means for the future. >> we see very high risks, and that becomes incredibly scary not just for the public, but for us as individuals and. scientis what can we do to avoid those risks and build a better future? david: the first step, scientists say, would be to see a nend-- an end to clearing t rests like the amazon. as we reported lnth, the trees store a huge amount of lerbon. they are being fto make way for cattle. because the animals generate a lot of m that eating less meat and more plants would really he

roger harrabin, bbc news, in the norwegian arctic. 0ur science editor david shukman is here. —plastics carried on the wind, what does that tell us about how far plastic can travel? it tells us, it confirms to us that plastic waste is getting literally everywhere, it's been found now on everywhere, it's been found now on every continent and in every ocean. in fact, a couple of years ago scientists were exploring the deepest part of the ocean of the mariana trench and right at the bottom of it they discovered creatures with plastic particles in their bellies, raising questions about plastic getting into the food chain, which of course eventually leads to us. and then last year we reported on the discovery of plastic particles in bottles of mineral water. now, there is no suggestion at all that drinking this can cause us at all that drinking this can cause us any harm but scientists are really actively researching that question. and all the time, it's worth remembering that more and more plastic waste is getting out into the environment. i took this picture ofa the environment. i

david shukman, bbc news, in geneva.ation officials say they have released roughly 300 people who were arrested during a massive raid in mississippi on wednesday. nearly 700 workers employed at food processing plants were arrested for not having the right documents to be in the us. but stories of children being separated from their parents have sparked outrage. chris buckler reports. in a series of targeted raids, immigration enforcement agents searched food processing factories looking for undocumented migrants. and, as they were led away into custody, some of their children were left behind. my dad didn't do nothing. he's not a criminal or something, that's what... immigrants — took him... oh, please, let him be. starts crying. most of the 680 workers arrested were hispanic, and many of their children returned home to find their parents weren't there. they're now being looked after by friends and relatives. he said that his mom was gone, that he's upset with trump. he's — hejust wants his mum back. and they both crying

david shukman, bbc news.brecon by—election, gaining the seat from the conservatives. it was the first electoral test for boris johnson, just days after becoming prime minister. the result now leaves him with a working majority in parliament ofjust one — even with the support of the democratic unionist party. the lib dem's jane dodds overturned a majority of over eight thousand to beat the conservative candidate chris davies by 1,425 votes. mr davies stood again, after being unseated by a petition following his conviction for a false expenses claim. here's our political correspondent alex forsyth. cheering. that's the sound of success. a buoyant lib dem leader and the party's newest mp fresh from a victory that makes life even harder for the government. here we stand bursting borisjohnson‘s bubble in the first week of his premiership. theirs was a campaign focused on the risk of a no—deal brexit. 0ther pro—eu parties, plaid cymru and the greens, stood aside to give them the best chance of winning. this, the fi

david shukman.ive parliamentary majority has been cut to just one, after the liberal democrats won the by—election in brecon and radnorshire. the party overturned a conservative majority of 8,000 to clinch the seat byjust over 11100 votes. labour were beaten into fourth place by the brexit party. the new mpjane dodds said voters had chosen "hope over fear". tomos morgan reports. ina in a brexit voting area, a remain party coming out on top. in a brexit voting area, a remain party coming out on toplj in a brexit voting area, a remain party coming out on top. i do hereby declare that jane dodds is duly elected member of parliament for the said constituency. the clear message from the constituency‘s new mp to borisjohnson. from the constituency‘s new mp to boris johnson. my very first act as yourmp, when! boris johnson. my very first act as your mp, when i arrived in westminster, will be to find mr borisjohnson, wherever he is hiding, and tell him it loud and clear, stop playing with the future of our

david shukman, bbc news, in geneva. let's get some of the day's other news.rights commissioner, michelle bachelet, has criticised the latest us sanctions against venezuela. she said they would intensify the suffering of millions of venezuelans. the british foreign secretary says the european union will bear responsibility for a no—deal brexit if it doesn't change its negotiating position. mr raab was speaking in mexico, where he signed agreements to increase cooperation. the italian government says it will ban large cruise ships from venice's historic centre. it comes after an accident injune in which a cruise ship hit a dock, injuring five people. but campaigners say it's not enough. they want the vessels to be banned from a larger area. shares in the taxi firm, uber, have fallen after the company posted a record quarterly loss of more than five billion dollars. the losses are more than five times as much as the same period last year. us immigration officials say they have released roughly 300 people who were arrested during a massive raid in mississippi on

david shukman, bbc news, in geneva.plenty more information on that story including analysis on our website. just go to bbc. com/ news. there are some links further down explaining the link between our diet and the climate and things that we can do individually to try and make a difference, which collectively will add up. bbc .com/ news. let's take a look at some of the day's other news. the russian government says two specialists have been killed and six other people injured in an explosion at a naval testing facility. officials said the blast happened during testing in the arkhangelsk region. our moscow correspondent, sarah rainsford, has more details. there was an explosion we know during testing of a missile engine in the north—west of russia on a facility that we know is used for tests of all sort of missiles for russell's navy, particularly the northern fleet which is close by with its atomic submarines. this accident happened — there were two people killed, six people were injured. now following that explosion, we

david shukman, bbc news, in geneva. let's take a look at some of the day's other news.an government says two specialists have been killed and six other people injured in an explosion at a naval testing facility. officials said the blast happened during testing in the arkhangelsk region. our moscow correspondent, sarah rainsford, has more details. there was an explosion we know during testing of a missile engine in the north—west of russia on a facility we know is used to test all sort of missiles for russell's navy, particularly the northern fleet which is no close by does not close by with its atomic submarines. there we re by with its atomic submarines. there were deaths in six people were injured. following the explosion, we know the local administration recorded an increase in background radiation levels for about a0 minutes. they say the radiation level has now fallen and the defence ministry says there was no danger submissions from this exposure. also making news today: hong kong police have appealed for order on the eve of a three—day protest scheduled to begin

david shukman, bbc news.more from our correspondentjudith moritz who is in whaley bridge tonight. how are residents coping with this? well, life in whaley bridge has been turned completely upside down and people have obviously responded to that in a variety of ways. some have left their houses willingly saying they've got no choice, they understand but there are others who are refusing to go. derbyshire police say they won't use legal powers to force people out but they are strongly urging everyone to comply with the advice they are being given. even tonight when residents were allowed to go back to collect vital belongings, they were only given 15 minutes to do it, they we re only given 15 minutes to do it, they were signed in and out again, they we re were signed in and out again, they were told it was at their own risk and they were warned if the dam was to burst whilst they were at home, they'd hear the emergency vehicles sounding their horns three times and allowed hayler, and they'd have to run. that is

david shukman, bbc news, in geneva.charged with attempted murder after a police officer was stabbed in a frenzied machete attack as he tried to stop a van in east london. 56—year—old muhammad rodwan is also charged with possessing an offensive weapon. the police officer, who's 28, is recovering in hospital after he sustained multiple injuries. our special correspondent lucy manning's report begins with footage from the attack you may find distressing. it's all so quick... from the van, a man leaps out with a machete and is tasered. hold him down! the officer who has been stabbed is on his knees, but after tasering him, he is still restraining the man. the machete, on the pavement. you right? i need an ambulance now! i've been stabbed! call 999! moments after, blood pouring from the officer's stab wounds, backup has arrived, and colleagues bandage his head. this was east london in the early hours of the morning. the weapon can be seen carried by another officer. you see that machete there? the man in his 50s is pinned to

david shukman, bbc news, in geneva.nks, a climate policy adviser for oxfam, is here in the studio. in some of these areas of the world where they are struggling to grow food, what has been the impact? devastating. with every fraction of a degree of warming, it makes it more difficult to grow food. it is poorer communities who live off the land who are worst affected despite them having not caused to the problem. the ipcc is warning that soil is becoming drier and less productive and this leads to increases in food prices and we see with climate change as well that it is also causing more extreme weather, monster storms, is also causing more extreme weather, monsterstorms, haywire growing seasonings, leaving farmers guessing. there is a terrible imbalance. up to 30% of food globally is wasted, and wasted in the developed world. i would imagine in areas where it is harder to grow things they do not waste much at all. how do we change what we do in the west in the way that we farm? we need to make really big changes in how

our science editor david shukman went to a world leading plant research centre in the netherlands toeat is a good idea for adults who are healthy. it is not necessarily a good idea to completely cut it out. there are groups that need meat — pregnant women, children, the elderly — but most people in western countries just eat too much meat. on the other hand, you have large groups of the population in africa and asia who do not eat enough meat, so we will need to find a new balance, but animals are essential in the overall agriculture system in the world because they can eat some of the food waste, and they can also convert grass into something that we can eat. a final quick point — a lot of people, including young people, are very worried about climate change and where the world is heading. what is your sense about whether there are solutions? i understand the worry, but i'm also convinced that there are many solutions, and that we can adjust to the pace of change. we have learnt to deal with drought, we have learnt to deal with floods in the past, and we will be able to do that. we

here's our science editor david shukman. a wall of dust smothers the parched fields of oklahoma.t is heating up, which may make it harder to grow the food we need, just as the world's population keeps increasing. there'll be 2 billion more of us by the middle of the century. and at the same time, up to a third of all food is wasted. and as it rots, it releases gases that raise temperatures even more. and this exacerbates climate change... the un climate panel highlights these challenges in a major new report into how we're damaging the land we depend on — and what that means for the future. we see very high risks, and that becomes incredibly scary, not just for the public, but for us as individuals and scientists, and the question is, what can we do to avoid those risks and build a betterfuture? the first step, the scientists say, would be to see an end to clearing forests like the amazon. as we reported last month, the trees store huge amounts of carbon, but they're being felled to make way for cattle. and because the animals generate a lot of methane, a warming gas, the report

our science editor david shukman is in the netherlands, and sent us this report.ng to tackle global warming. with me is professor louise fresco, who runs this institution here. how important is getting food production right if we want to tackle climate change? it's very important to get food production right because there will be more people in the world, and agriculture needs to be helping to change the effects of climate change by having better agricultural systems that can deal with drought, that can deal with floods, but also by putting carbon in the soil so that we make sure that the emissions from agriculture, so what comes up in the air, nitrogen for example, actually remain in the soil. because farming can either release greenhouse gases like carbon dioxide and methane but also help to trap them in the ground? so, farming and soils, in a way, are also part of the solution, not only part of the problem, so that's why good agriculture management is absolutely essential to future food production. what kind of impacts could there be on farming from climate cha

our science editor david shukman joins me now... plastic and snow is unbelievable somewhere else? blowing, but it's everywhere. it's proof that it's got all of the planet, plastic has been found on every beach, every continent, every ocean. scientists exploring the deepest part of the oceans, the mariana trench in the pacific found creatures at the bottom with plastic particles in their bellies, raising questions about if it gets into the food chain, which ultimately we are part of. it's been found in bottles of mineral water. that was a revelation we reported on last year, they think allen earth does that happen. we did not know that it causes any harm, thejury is not know that it causes any harm, the jury is still out and a lot of research is going into additional evidence yet that it does cause harm. so it's just evidence yet that it does cause harm. so it'sjust everywhere, and we have to accept that plastic is now part of our planet. in some form. whether you can see it, like a plastic bag or bottle, or more likely that it's too small to see what they're talking about in the s

roger harrabin, bbc news, in the norwegian arctic. 0ur science editor david shukman is here... was no where it's going. extraordinary, scientists have found plastic pollution on every continent in every ocean on every continent in every ocean on every beach. last year we reported on scientist studying the deepest parts of the ocean, the mariana trench and creatures living down there had plastic in their bellies. guess plastic in the air, french scientist observed it last year in the pyrenees. and i think that's the key to this story because once these tiny particles of plastic which can be too small to see with the naked eye get into the air, they can be carried for thousands of miles in the window. and there's a pattern that scientists have observed, that the wind tends to carry pollution up to the architect, so over previous yea rs to the architect, so over previous years at the observed how there is evidence of sit for example from coal burning power stations in europe or china or america ending up in the arctic. so any sense, it's no surprise that these little bits of plast

here's our science editor david shukman. a wall of dust smothers the parched fields of oklahoma. planet is heating up, which may make it harder to grow the food we need, just as the world's population keeps increasing. there'll be two billion more of us by the middle of the century. and at the same time, up to a third of all food is wasted. and as it rots, it releases gases that raise temperatures even more. and this exacerbates climate change... the un climate panel highlights these challenges in a major new report into how we're damaging the land we depend on — and what that means for the future. we see very high risks, and that becomes incredibly scary not just for the public, but for us as individuals and scientists, and the question is, what can we do to avoid those risks and build a betterfuture? the first step, the scientists say, would be to see an end to clearing forests like the amazon. as we reported last month, the trees store huge amounts of carbon, but they're being felled to make way for cattle. and because the animals generate a lot of methane, a warming gas, the

once the situation has stabilised, engineers will set about repairing the dam. 0ur science editor david shukmanst of strength between the weight of water in the reservoir and the condition of the dam. ina reservoir and the condition of the dam. in a crisis triggered by an extraordinary amount of rain. the site of the torrent of water overflowing the dam three days ago reveal thinkable forces involved. far beyond what the victorian engineers who built this place could ever have imagined. designed and constructed in the 19th century to store water for local canals, the dam is pretty simple, made with clay surrounded by mud. but if there was torrential rain, some of the water is deliberately allowed to escape over the top to relieve pressure, but the flow on wednesday were so powerful, had threatened the dam that had been built to older and very different standards. the construction of these old stands is such that it was done in the horse and cart area and the soil would have been placed in position but not compacted like they are these days. so old dams, when you look at them, you have to imagin

solution is for people in rich countries to eat less intensively—farmed meat. 0ur science editor, david shukmanlthy. it's not necessarily a good idea to completely cut it out. there are groups that really need some meats. that includes women, children, the elderly, but most people in western countries just eat too much meat. 0n the other hand, you have large groups of the population in africa and asia who do not eat enough meat, so we will need to find a new balance. but animals are essential in the overall agricultural system in the world because they can eat some of the food waste and they can also convert grass into something we can eat. a lot of people, including young people, are very worried about climate change and where the world is heading. what's your sense about whether there are solutions? i understand the worry, but i'm also convinced that there are many solutions and that we can adjust to the pace of change. we've learned to deal with droughts, we've learned to deal with floods in the past and we'll be able to do that. we'll also develop new crops with new genetic characteristics,

solution is for people in rich countries to eat less intensively—farmed meat. 0ur science editor, david shukmanand they can also convert grass into something we can eat. a lot of people, including young people, are very worried about climate change and where the world is heading. what is your sense about whether there are solutions? i understand the worry but i am also convinced that there are many solutions and that we can adjust to the pace of change. we have learnt to deal with droughts, we have learnt to deal with floods in the past and we will be able to do that. we will also develop new crops with new genetic characteristics, new crops that actually can harness the sunlight even better, so all that will help us in the right direction in the next few decades. a new national artificial intelligence laboratory is to be created by nhs england. the health secretary matt hancock says artificial intelligence can improve the treatment of conditions from cancer to heart disease. here‘s our health and science correspondent, james gallagher. artificial intelligence is already showing its potential i