and that a 4th id science correspond derek williams who now joins me in the studio welcome derek that's a huge gamble almost 3 quarters of a 1000000 people are killed by jones resistance to antibiotics last have alone what's driving this increase well there are a couple of different things as we saw all germs will eventually become resistant to antibiotics that's the nature of evolution but where we're accelerating this evolution in a couple of different ways 1st of all one of the big problems is overpriced. question of the antibiotics that we have we've been prescribing some of these drugs for 60 years now and often were prescribing them in situations where they're not medically necessary all of us have taken courses of antibiotics particularly in the seventy's eighty's ninety's before this became a big problem that weren't really necessary the doctor you would go to the doctor with an infection in your throat the doctor would say we don't know if it's a virus which isn't affected by an antibiotic we're bacteria we're going to go ahead and give you antibiotics anyway it's estimated tha

lead healthy lives for the next decade it's absolutely we wish that for all children growing up derek williams from good of you science thank you so much greatly appreciate it. and some santas now for you. has secured a place in the final tour of the a.t.p. finals in london after a straight sets victory over germany's alexander it's vera while the 21 year old is the 1st greek ever to compete at this tournament it took the 1st set $63.00 against 6 pair of the defending champ and 22 year old sara still has a chance to claim the group's final qualifying place on friday. meanwhile his next match is in the saturday's semi finals after completing his 6316 victory. and are running out of the top story that we're tracking for you this hour the mayor of venice says the very future of this city is that state after devastating flooding at least national government is preparing to release of millions of your own spin a. bit and up next is do w. news asia with my colleagues who is a misconduct i'm leyla her rock and roll and i'll have the headlines for you the world headlines for you at the top of the hour

science reporter derek williams explains. rising temperatures will have a major impact on agriculture and global yield potential for staple crops like maize and rice is already in decline if the downward trend continues while populations rise food prices will be driven up leading to more malnutrition among the world's poorest and in children that can affect development dramatically causing lifelong health problems. and climate change is closely tied to another a key factor in child development air quality children born today will on average be breathing and more toxic air than their parents that will cause rates of respiratory diseases like asthma to rise and increase their long term risk of heart attack and stroke. the current generation will also experience more extreme weather related events than their parents the health of hundreds of millions of people worldwide has already affected by flooding heat waves droughts and wildfires if we aren't able to keep temperatures from rising under 2 degrees celsius tomorrow's children

science expert derek williams joins me in studio derek i mean it's been hoped for a long time that simple effective blood tests would be available one day i mean why is it taken so long well it's to a certain extent you have to understand that cancer is not cancer is not cancer every single cancer every tumor is unique even if for example in the case of breast cancer even if the the tumor arises from the same tissue in 2 different women it will eventually develop and mutate and turn into 2 very different diseases that will elevate biomarkers within the blood in different ways and so what's going to i think in the long term the most effective with these with this this kind of blood testing looking at biomarkers to protect to predict cancer farther down the road is batteries of biomarker so if you're looking at 101220 of them at this at the same time and then you're going to have to have a long term average in a study that's coming out later today in this conference in glasgow for example look when they were looking at a biomarker that's now used for ovarian cancer over $50000.00 women they

is really really empty they're going to continue to do that for billions and billions of years derek williams from a science this thank you very much for that this is the news and these top stories chinese president xi jinping and french president in london mccraw have really info on that commitment to the fattest climate accord this statement in beijing can the day after the u.s. formally announced its rid george from the agreement to cut greenhouse gas emissions. britain's parliament has been formally dissolved ahead of a snap election on december the trial of british prime minister barak johnson is due to see the queen shortly to mark the official start of the election campaign. police and protesters have again clashed in the chilean capital santiago after president sebastian pinera ruled out stepping down mass demonstrations of economic inequality have rocked chile for more than 2 weeks. scientists have confirmed that the space probe voyager 2 has escaped the sounds influenced entirely and to crew interstellar space the probe is now almost 800000000000 kilometers from a sun and is still t

desperately raise awareness and this is and make people aware of the urgency of this global problem derek williams thank you very much for all that information on that day pressing issue as you described it thousands of kenyans who say they were driven from their homes under british colonial rule are demanding compensation and they're taking the case of the united nations the kenyan say the victims of systematic violent crimes in the displacing them did use melanie and edith to monny travel to kenya country county which is known as kenya capital. i'm hours before hardship and suffering has followed through dear tutor teach her entire life when she was just a child she was separated from her family together with thousands of to lie and keep ciggies people she was expelled from her incest for lands at 96 years old she still vividly recalls the trauma of that experience. i don't remember the deal. but the hour we were chased away was 4 in the afternoon . i was so frightened my stomach started aching and i started vomiting. lydia's parents were forcibly removed to so-called national reserves making wa

well derek williams from w. science is here to tell us what all this means so their newest from the depths of space about a a structure of the solar system i'm told break this down for us what does it all mean well i love stories like this because actually brings me back to my own teaching is we even have a visual aid to help sort of understand this a little bit more basically what these 2 probes did was that they prove the existence of what's known as the heliosphere now the helio city or is this giant circular sphere that surrounds the solar system the space you have to understand is permeated by what's called plasma now plasma is charged particles and and gases thinly spread evenly spread throughout space now the sun is emitting huge amounts of electromagnetic radiation and basically what these used probes discovered is that that has an edge that has an edge that's known as the helio pause now you have to understand you see the sphere in the middle of course we're moving through space so it's got this teal sp

artifacts to ever make it into interstellar space seeing billions and billions of stars to i'm sure derek williams from d.w. science thanks so much. now the fall of the berlin wall 30 years ago changed things around the world but especially the lives of east berliners who were suddenly permitted to travel to the west football fans from the east came by the thousands to see the western club in action on nov 11th 1989 it was the 1st time in decades that east and west berlin had been reunited. the 1st weekend after the fall of the berlin wall hundreds of thousands of people from east berlin streamed into the west many to olympic stadium fans using their newfound freedom to finally see. on that november 11th they faced a direct rival for promotion to the bun just league remember the game well. to the stadium you could see something was happening was that back then we usually had a crowd of 5 or 10000 now all of a sudden there were masses of people everywhere. since the masses of people from the suburbs in east berlin coming to the game and you could see cars literally the track. the fans from the east

revolt from the w's science correspondent derek williams who joins from a welcome at eric so. these antibiotics because the antibiotic resistant bacteria they are increasing because. well because for a variety of different reasons there as we just saw bacteria evolve they are going to eventually evolve resistance to these substances anyway particularly in the kinds of situations that we put the men and hospitals using them over and over again but we can accelerate actually that evolution overprescribing that before prescribing them for example in situations where people don't really need and have bacterial for example if they have a viral infection that's been going on for decades in many countries actually particularly in the developing world you can even buy you can buy antibiotics over the counter that's one aspect of the problem we're actually accelerating the evolution of these bugs on the other hand another aspect of it is for example we use it in industrial livestock production so you have these these animal farms these vast complex as with thousands sometimes thousands