some people don't have to worry about where the next meal comes from. but these food supplies o always be so reliable. the eight hundred million people around the world the chronically undernourished. get this is nothing compared to what may be to calm.

the two thousand fifty two b. two billion more people. food production will need to increased seventy cents meets dimond. by then climate change could have increased food in security to disastrous levels. it's affects the already being felt by farmers around the worl. but solutions are being developed to help make justin you cditions so they can feed a growing population. climate change intensifies. i'm done. in south africa to meet famas taking space to boost agricultural yields. and to find out about an extra reclined could hold the secrets to creating crops. can survive drops. and i'm delighted to robbie in the wall where team of plant doctors are helping farmers fight in the past threatening to wipe out their crops.

we do travelling close to the deal about this to of them this is the major dam that supply wanted to get down. but also a large part of the war these is it for you to get him. only you won't see this. this is the old trees that used to be next to the number. before the dam was built. now they've been underwater for full price to thirty years now. and this is now the first time that they are really being exposed. this is really so via is meant to be the worst drought in a one hundred yes. nobody we expected to dance. in one day. and then we can do bring them down to about 50% by the end of summer. and then they can fill up again to under percent. but it has never lost. some year upon year they're not filling up in that range come because they're just not enough not enough right. we want to go back to the good

old days from that when he was able to learn. the majority of south africa's famas a small holders and their crops rain fade. to win with the patents are distracted you can have a devastating effect on their yield. and lively. thomas got is one such farmer living in the woodland creature. he has a small herd of goats if you pay i was hoping to gross one of is this year. when i visit his rain fed reservoirs is almost dry? the government on the machine when your company chart the mobile. what different in the two hundred and? two thousand sixteen not on the scene. we seek out. told abc begin. new.

old sweat. ocean i seek out my phone and it's on my body so nice talking over seventy site ownership. mention it by nina mandell nice on africa many come and examine the difficulties many see if we had a cord which speed. isn't that an engine can you confirm [inaudible] is optional south africa has lost over a third of its femmes yanxi to you to water. as the drugs become more severe. i'm the bulloles try and faers like thomas aoing to need a radical solution. professor. at the university of cape town is hoping to provide just. joe it's research focuses on a kind of plant it's an extraordinary properties. and she's ideally situated because one type grows wild in the hills just behind the university campus. this is it looks great doesn't

it does but it's not it's actually it's dry just lost all its water. and it's cold it's a front into very protective kind of way how long can it survive like this -- months to use depending on species. and the moment it rains this thing rehydrate within two hour. within two hours the is it up to you. a good one species we kept them drive for ten years. five hours later they were lost. i'm trying to unlock the secrets of how these plants connection lose. all that amount of water and not die so once you understand these kinds better and unlock the secrets. what do you do with those? i make crops do the same thing that's mine. too jill takes me back to the lab where her team is busy unlocking the secrets of the so called resurrection plan i want to put this one on here. and they start to re watering prices so that you can see the magic of resurrection okay so we threes but also give the needs a

little bit it's like rain constantly right. rain the thing about farmers in africa is that it will all that every culture is rain fate. so those who can afford irrigation great but if there's no rain for the bulk of us there's no crock in the nice thing about this type of crop is that. it'll start of wealth is lots of rain it will continue well if there's lots of rain but should they be across. the pond one time when the next plane comes it'll continue growing the farmer can at least get all this. and you can get another chance of life as a quick. talk to fans teams first objective is to understand what gives tse plans these unique properties. what we did here it's not like we extracted some of these proteins from one of the resurrection plants? and restaurants read these days to the bacteria so now you're trying to produce these -- proteins in a large scale so these proteins are part of the plans arsenal to protect itself against the lack of water. right that is this little protein that we're looking at of water it has known structure

what if as the construct which one because of disappearing. but this protein in polls and traps a whole lot of money -- so it retains its rotating by changing shape. right. very intelligent system. you and i can run away from a challenge is that correct they have to face it priest recently left which is. eating insects eating funding. with the salinity hey you want. to and they have an amazing ways of just. covering and responding. slx thing. wow hey look it's resurrected -- amazing to think that the plan

that we saw earlier that day and basically now. looks completely alive. picturing a farmer's field where the maze is completely dead. because there's been a drought season and in the rain finally comes again. and the next day it'll look like that the potential of that is staggering. the most promising crop for cheating resurrection is to hav. a puppy serial throughout east africa. the chills team recently had a big breakthrough. they were able to prove that the genes responsible for the regeneration process already present in all time. this gives a lot of hope for future drought tolerant crops for me the important thing is to be able to leave this planet. nine started a process that could make a difference. the difference in africa the continent that i grew up in the container yeah. with long try seasons and unpredictable rains bombs that can afford to irrigate their crops. almost two thirds of south africa's total water requirements are used for irrigation but in times of drought severe restrictions put

in place forcing farmers to become smarter with the water usage. the digit family orchard just outside cape town produces around seventy million apples and pears each year. and exports they produce around the world -- yeah i need [inaudible] right [inaudible] updated. to ensure their orchards and business of five the detes need to be more precise with their water usage. and they are now able to call on high tech solution. so one of the new technologies we have as sapphire images. of orchards. this one looks like it's called fhritp duke. is a precision agriculture tool that helps farmers grow more with less. analyze the satellite images meteorological data and available local doctors. vied near real time accurate information about crop health.

a satellite image can view crops in different light spectra. and then be analyzed against. twenty ten to five straight. before you can even see it with a visible online. thomas can react more precisely and quickly. any possible problems. so what does what does the information tell us about what's happening on the phone right now and you can see there is is a you shape. and is growing of birds we get another one the simple so the the yellow patches mean that that's not as good growth. yes okay i think we should go have a look. okay so we can see what's actually happening there. you can give me to anyone. even before. i would just start showing. in my dad's generation this was unthinkable. this is the one that's fine it's

the six indication is scheduled collection. session so that should be fine so this part is okay so we've got a close look in and see what the problem is yes. a little further down we test the soil again. you can see this is much more please so it's more yellowish the holding capacity of the soil yeah. is weaker right. so what will you do to make sure that this can catch up to some of the other orchards. on the next round of mulching yeah definitely will put some extra watching it again. more mulching allows for more to to be held around the roots of the tree. increasing irrigation would waste water as it trains often the case. knowing this helps pull manage the use of a more to more effectively in his old age. ten years ago you would have been happy with fifty times. i am is now. 820-0 and just good farming practices and is the technologist coming in to make us capable of more.

precise home [inaudible] source [inaudible] actual. what was that? so a full. well let's see. it's better to not put it because then you get too much of that stain coming off with it so if you want to get a clean brea. you lift it up and over instead of pulling it down. it's incredible to think that. the parents that we pick here today will be shipped all over the world to china to the middle east. and that the farm is the workers who work here i'm making food that will be. all over the world it's important work that they're doing. look at the neighboring farms to reduce the wat usage by around 50%. its successes have led the agricultural department in the western cape to offer free click for free to farmers in the region. only those with the technical means to access. for able to benefit from it however thomas is installing

some basic irrigation on his phone this gives him some hope for the future. in addition the resilience again okay when i might be able to focus. again can i yeah before then you qualify for man. so it will give me tea is a once in a bottle [inaudible] no. one income cable okay when i do use a couple [inaudible] project by [inaudible] thank you. give it a go abbas you're to get much buy the get up with it would quite likely protek yeah you can help. yeah i go by enjoy what you're talking about synopsys kubik upon the talent does she kinda. satellite data is being used in manyays to enhance food security. the full cost pricing i southeast aa 85% taxeceipts.

twenty stand h best to grow food in south america by maing cropland across thcontinent. to help african hedges identify grazing areas through map cental mobile phones that by hopping hotel at. and to motor the status all my tears crops on a monthly basis. we know more than we have in yo. and we have an understanding of our planet as a closed system that we didn't have before we have a new generation of satellites up there. that have a resolution of town to ten to ten meters. to date for example i can give you with seven days accuracy a complete picture of the pendant with every single. three on that. to all the but y really need to get it down to the farm. most of the food that is being produced on this planet is actually produced by smallholder farmers. farming family. now these people learn from the basis of traditional knowledge. now if the weather patterns are

changing as the doomed because of climate change. then you need a source of information with that what you are doing. and in that low by technology offers us unprecedented possibility. there is virtually no space we couldn't reach the famas and closing this gap between big daytime small farm that's one of the very promising. there's nothing that defines the interface between natural reurces and human activity like agriculture does. there is no other sector that is employing more people. so if you get this sector right the potential is enormous not only to secure. but reading to secure the natural environment that keeps us. warmer climate and a greater movement of people and goods around the world are posing a new set of challenges for farmers.

the diseases are also becoming more globalized causing 40% of all crops to be lost each year. threatening the livelihood of small holders and also posing a great risk to global food supplies. here in nepal almost all fruit and vegetable plants are susceptible to attacks by insects. and with two thirds of its population in farming new pests and diseases could spell disaster. what is it about nepal's climate that makes it particularly vulnerable to these past an invasive species? out let me see that globally this so that is definitely an impact on the climate and the ball is not an exception so early eighty two oh laws that. not too much of a trade was happening between the country's not afraid is happening so more products coming. so definitely more press coming and the climate here is now getting more suitable to the past. it catches the foremost quite sudden and they're not able to know how to cope with you see

last year in. two thousand sixteen the tomato crop was almost affected by 72100% in some palm so it was a huge loss for the problem. to help farmers lose less of what they grow a global program called plan twice has set up a network of regular clinics to rapidly diagnose pest problems for smallholders i'm checking out this rning's mo about plant clinic. which seems to be already pretty buzzing. today's the town just outside of if you have only. one yet you will leave your mother the twenty something is. is it the everywhere. so you think this seems to in most of the crowd. quite commonly known that you

see in see what's best able to despite call. one eight so a lot of farmers are dealing with this problem. how exactly does the plant clinic work blanking? the program is -- effective way for a given forms to the five one i buy you go that involved in this and that if the sample - the farmer and effective -- take us and onto the farm work okay so they bring in their samples they show you the effects office yeah and you can give him a diagnosis right away. just like at a doctor when you go in you not feeling well any right to prescription you're doing the same thing here you're writing a prescription for the farmer. i was in the message from the staff. name name of bodies and any comparison with the saint louis mo that's easier. have the middle of the area and i says i says i don't feel.

okay region there is a local smallholders who has discovered a larvae that has infested and damaged his tomato crop. what? i am i am [inaudible] yeah. to the senior officers just taking a quick look for you can see his crops are badly invested. how large? is is the lotteries. this is the is thelank -- black mountain -- sorry -- the dc to sign off to die. his entire tomatoes. damage. just ten fifteen days. destroyed it yes receive didn't

ready infected plans. which is added to the clinics database to track the two to absoluta and waits for his prescriptions. to to absolute just startedife as a larvae that eats the tomato fruit before transforming into a mall and moving to a neighboring plants where the cycle starts again. it is recently been reported in nepal and is spread rapidly devastating crops. i want to find out more about this invasive species so i'm going to meet doctor badger trattoria to to absolute to specialist at the nepal agricultural research councils. what he working on over here yeah we are working on -- south american film actor leaf miner that it's go to faster data in our scientific name. this weather reservists from -- nineen sixty that confined to solve a medically but in food how didn't six it was reported from last time out of the south

and a good attitude from. spain. when it came to the two thousand ten in iraq and come? two thousand fourteen it was reported in india. after death because of thepen border and lack of we planned on system between the ball and india and this is the best game in apart from the impted a microphone india. how many years do you think it's going to take until nepal is completely to to absolute to free or has really diminished the invasion? actually it's very difficult. to get rid of this best once it is interesting that bob and notice can be with competing to get we can. complete it occurred in the past but we have to manage it. so we can leave. and with the potassium. with farming communities locked into a globalized world threats to crops from new invasive species are slowly becoming the norm. why is now operating in thirty four countries gathering data to form a knowledge bank track outbreaks and protects

smallholders? i catch up with region to at his farm i want to see what can be done to rescue his devastated crop. wow. these are your tomatoes they're all completely destroyed. completely destroy i and get money from this groups it helps to make -- family. to support your family suort. how much do you think you've lost with this infestation how much money yeah the -- twenty two thousand the 40% 40%. i had also dig for some portals said the my my what. what do you still drive okay? dig dis portal from this the diagnose okay. so green of full of tomatoes ye. all of greens what a shame. she the barrel a doctor from plant wise has come to show

region that how to use a simple trap to manages to to absoluta infestation. the trap emits a fair amount the tracks the adult male mall. so the water is added to the basin which the moth and falls into. by reducing the number of males the population can be controlled without the use of pesticides. how many days until this entire areas treated until the outbreak is gone on june? one one one month one month how many months until the coming season connors yester two months doing to my c. can be fully back in business. going healthy tomatoes again just from the simple device. right how do you feel about that [inaudible] happy. globalization is happening. the world is developing and we can't slow that down.

you can have an outbreak or problem in peru. very well be the same issue for a farmer in the call the very next year. and still plant wives network of local plant doctors and clinics. supported by an international pest and disease database. enable smallholder farmers to be more prepared in the face of new threats from climate change in an increasingly globalized worl. it's going to be to order to produce enough food for a growing population as the world's climate changes. but the what has begun. my wife is extremely new varieties of crops a being deloped and methods to grow them. wes skills are being honed knowledge is being shed. third in security wl become an increasingly pressing issue. but people are finng invtive ways of coping with new ñcñf

>> welcome to "global 3000!" ♪ one household, one garden. alberta akosa is on a mission to help women in ghana grow their own fruit and vegetables. in china, care services for the elderly are going high-tech. what does that entail? and, the controversial music from egypt's streets that won't be silenced. ♪