the made in germany on the wi fi double used crime fighters are back to africa. the most successful radio drama theories continues all episodes are available online course . you can share and discuss on v w, africa's facebook page and other social media platforms. and fighters tune in now. me ah ah, ah, ah, if there is one color and that's the embodiment of today's zeitgeist, it is green. green stands for lush, chemical, free grasslands for emission 3 mobility, and for a future in

a healthy climate. it is no wonder sustainability has become a top issue for companies. but are these projects profitable? and all the actually as green as the peer, the green economy, kennedy work, that's our topic this week on mate. when it comes to the things that are essential to us pretty much, nothing goes without water and looking at the planet. there's plenty of it just not the kind we can use right away. most of it is salt water and less than one percent is drinkable. w kristin carla, on the tradition of dissemination and whether a berlin startup could have falls a global water crisis. in 2015, a series of drought started to dry up this dam. the source of almost half of the water available to cape town, south africa. in this satellite time last you can literally see the storm water decreased month by month in 2018. the city was approaching day

000. 0 is the shorthand for the day. the taps run dry and people would have to queue to get water rations. cape down was the 1st major city to risk running out of water, but it's not going to be the last jakarta, london, beijing. tokyo could all face their own de 0 in the coming decade. most parts of the water, at least 4 months a year are experiencing some water stress, those or the gap between the mind and supply your water. isn't that how can that be? our blue planet is washed with water. more than 1000000000 trillion leaders to be precise. the problem is that 97 percent of the earth water is faulty and most of the fresh water it frozen in ice capsule. less than one percent

of the earth, water is drinkable. that makes one solution, especially promising elevation we sell a nation, this allen ation and the sell a nation seems like a pretty straightforward solution. you take that undrinkable, salt water, remove the salt and end up with an unlimited supply of fresh water. so why are we not building more desalination plants? b, l, a nation is a natural process, has been known for millennia. the ancient greek philosopher, aristotle noted the sun turns ocean water into vapor, which then condenses again and falls back as rain. compatriots took local. retailers boiled sea water on long journey rome and used clay filters to trap salt . these are still the 2 basic principles used today. thermal desalination

uses heat falls, boiling point is a lot higher than water. so if you boil salt water, only fresh water will evaporate, leaving all the salt behind membrane desalination uses pressure. salt water here, colored in red for clarity, is present through a membrane that is only partially permeable. fresh water can pass through here colored in blue, but the salt is trapped on the other side. the technology didn't improve much until the 19th century when industrialization and population growth encouraged more research. population growth is the main driver far increase in water scapes months. ok, there is an environmental scientist with more than 30 years experience in water

management, different stance, middle east and north africa, egypt. that region has population of about 5 percent of the population, but just as one percent of the global water resources. and soon, another factor could make the foundation even more crucial global warming. the as the climate warms, more water will evaporate. and as aristotle noticed more vapor equals more clouds people's more rain. but that rain won't call evenly map shows how precipitation will change as the climate heat up. regions in purple will get more re those in orange less now compared with this other math, please read does indicate areas that are already experiencing in water scarcity today. dry areas like calla fornia in the middle east will have even less rainfall

. other countries, like india, will have more rain in the monsoon season, but left and the dry season when people need it most. this will make desalination even more popular. and this route is starting to explode, i'd say since to lay a ninety's, but especially in the last 20 years you've seen a big acceleration. edward jones, the ph. d. candidates put together a state of the art outlook on the status of desalination. nowadays we have around $16000.00 and deceleration plans which are producing more or less a 100000000 meters keeps the water per day. but take a closer look at this map. if you look at so much detail you needed water, we produce on this bill. currently, 71 percent is produced in high income countries. that's because desalination is very costly. the boiling billions

of leaders of water takes a lot of energy. the middle east, the availability of oil and especially fossil fuels makes the thermal process is cheaper than for other types. it could be, i think, $25.00 or 30 times more expensive. but that energy doesn't have to come from fossil fuels. the thought up in merlin has a sustainable alternative my name is kim, i'm the co founder and ceo of the company bought a light. so i moved from west germany to berlin to see you and also doing something your water, if you like, yes please. i use the water come bases from the home to the system, and after that is gone through the booster bomb 14 by the water is fresh to the

membrane. its limited water re the green energy. that's the key to the company's success. this is one of their plants in kenya with these solar panels. keep the cost of water in low in villages like this, where electricity is not available. ah, the ah, the water for 3 electricity from the solar wind for free. so we can now produce $0.10. this price is actually competitive to clean water from the river from the bowl. but there's another problem. what do you do with this water that's left behind? so we thought of this, so look out of the water to produce fresh water. but now this is still contained

within our substance, but it's just a smaller volume. so it's most ot ah water. it's called brine. when we produce more, brian, then we produce neutral pipe with this coming out of the discipline, discharging side. and in as it goes out in the temperature can also deplete the oxygen available. and this is what's causing actually the organisms more damage, just the lack of oxygen that basically suffocates a ah, bryan can also contain chemical harmful to see life needs to be a better plan for the industry of dealing with this bribes. were producing more waste with no plans, but what it just waste could become a resource tomatoes, seaweed,

and certain fish can tolerate high salinity. morial life uses brian to cultivate them. in tubs like this is also the opportunity for so recovery and symmetric recovery. at the moment, the technology is automated about fire brian management, but those are very small scale. the challenge is that all we can transform those small scale technologies into a large scale operations. desalination is not a magic formula. the process must become more efficient before low income countries can afford it. nation plans must convert from fossil fuels to renewable. energy is to limit emissions. and the whole industry needs to come up with a plan to deal with this. brian with facilities like this, already a lifeline for many communities. it's very important to realize that this nation is here to stay really need to work towards solving challenges. dissemination in the

graduate law again, have fun overnight. but i will teach that daily, that at the same time, to be sure to harvest the potential of nature, to watch or a town is doing a lot better and the dam is full. the city was rushing to build the foundation plans to avoid daisy row. but the solution wasn't desalination or any other technology. no one should be showering more than twice a week. and the top flush was only when you really need to flush, he's made of a fit in trying to use a possible and have to have water as if your life depends on people came water. why they radically changed their water use. we use it consciously and

mindfully trying to save and they valued water for the essential and the replacement substance that it is. and that's how it should be. by the way, you can watch videos like the one you just saw on youtube channel planet aid, which also has lots of other content on sustainability. now we are a business magazine and we do have a liking for numbers and div. they are really alarming around 820000000 people are suffering from hunger around the world. and at the same time, about $1300000000.00 tons of food go unused every year. due to the lack of proper logistics or food gets wasted. because pears and peaches don't look as fresh as we would like. increasing shelf life could improve things. and here's an idea for how to achieve that. fruit and vegetables rotting in fields or

during transportation to consumers. according to the un food and agricultural organization or f, a o, some 14 percent of food is lost after harvesting. and before it reaches the market retailer. if you go to a particular country or particular, you are likely to see varying levels of food losses. and these, depending on the situation, would go up even to 50 percent. if you're talking about, let's say fruits and vegetables, for example, if the format does not find the market for that particular food product in a timely basis. no, this is a huge amount of food, and if you, you convert it into monetary quantities. this is a lot and if you read it as well into a loss to the environment or the environmental impact that is also huge. when that happens, water, pesticides,

and resources used for transportation are all wasted. some 7 percent of global greenhouse gas emissions can be traced back to food loss and waste. the chief causes include problems of transportation and refrigeration. to pass from harvest, the kitchen table is a race against time. a california based company appeal sciences might be able to help founder james rogers and his team have developed a liquid that could extend the shelf like fruits and vegetables. appeal is a little exactly like it sounds peel and we apply to the surface of fresh produce. you can't see it, you can't taste it. but it slows down the factors because the fruit to age help, even without refrigeration appeal as a liquid coating that dries into

a kind of edible skin. the coding helps the produce last up to 4 times as long that buys time, time to transport, the produce to storage, and to eat it before it spoils. appeal is based on liquids and other natural compounds found in fruits and vegetables. they're extracted and blended into a taylor made solution by combining them in the rate ratios when they dry a dry into an arrangement that allows us to control the factors that cause fruit to age, which are basically water going out and oxygen going here. so same materials were just heating them a new trick by finding the right formula to apply to different kinds of praise, in order to give them the same kind of protection that you'd have on women. on a cucumber or on a dutch wholesaler nature's prize cell,

some $120000.00 tons of fruits and vegetables a year. they import from 59 countries, especially latin america. in rotterdam, the imported produced continues to ripen before it's sorted, packed, and shipped to the retailer sportage a waste of the common problem in the industry. but the company hopes to minimize these losses in the future, the consumer. so the way they actually bought it and they don't use it and that costs money. so in the chain, if we don't throw it away, you don't spend that money. wrongly with a b, we can reduce weight was 50 percent at the retail level. food that used to land in the trash can now be sold every day. natures pride treats 6 tons of cars with appeal before sending them to supermarket shelves across europe. the main customers are in scandinavia, germany and the netherlands natures,

prizes the 1st company in europe to use appeal, are planning to start treating other kinds of fruits and vegetables. soon i started coming by air by using a view, we might give them the possibility to go by boat. and that is of course, the same reasons. so there's lots of weapons. so far, the new technology is mainly being used by large companies. smaller ones can't afford it, but appeal says it's planning to change that with a new business model in which retail chains and supermarkets pay smaller producers and farmers to install the necessary setup. in return, they receive longer lasting produce farmers in places that haven't had access to national international markets could also benefit and so the opportunity is to be able to, to use appeal to reduce the transport taishan costs and increase the quality. so it's not a, it's a way. ready for a some,

a small producer to grow something that's intrinsically valuable, to collect. some of that about extending the shelf life of produce will help. but it won't end the problem of food loss and waste for that transportation and refrigeration systems will also need to be improved and expanded and consumers will have to stop throwing food away and start only buying what they'll actually ease. but if we buy more food then we can actually eat it doesn't take long until flies and other creatures starts warming. the fruit bowl. most people don't feel particularly drawn to insects, which could be one of the reasons why pesticides sales here in germany have been at a steady high. while the recent studies show the flying insects and german nature reserves have declined by more than 75 percent in the last 27 years with industrial farming. being the most likely cause what some call in sexual get

a has been starting to change people's minds. and the business model of the b one pesticide maker is off nicely. well, because i put warnings on my product. my bank are skeptical me all. yes. so i worry about my future ethics come before coming through like his father before him. humph. the trick house makes household insecticides the family run. some had been operating in the same way for decades until these 2 artists called its purpose into question me the made me think to come and look at insect

rec house in the artists joint forces. they organized and event to raise awareness for insect that preservation. in the village residents ended up collecting 902 flies, one lucky specimen even won a prize. the fly, erica was treated to an all expenses paid spar weekend with flights. included, the dental child will be in the depth all day and we've been out and about with erica. not one person has given us funny looks or called us a bit loopy. and on the can get me the event prompted. hum. speak tricks like how to put his company's future on the line. he's invested around 2000000 year rates and the conservation of insects and other small creatures . the project also include setting up green roofs to compensate for the animals.

his products have killed. debrief with his headquarters, so become a home for insects. the mine for the my product is killing me. but i don't see a contradiction in making insecticides while at the same time helping insects from keller to save. you really always this just a marketing ploy because these days, products that can boast, environmentally friendly credentials tend to sell better. to me. this isn't about marketing. i want to see the market reduced as seen in the warnings on my product, called one product of the product has a big label about the dangers involved. voice for them, calcium designer, some steep tree square house is now introduced alternatives that he feels more

comfortable with just the live trap for fruit flies. the insect is attracted to the find a vinegar, and then trapped in the cylinder to escape unharmed. that's what i'm trying to move, i'm really going for this product because it's not obvious why you should save fruit flies. company has seen turnover drop by 25 percent. has profit to fall and even more. so wouldn't simply selling the phone be the logical business move call from that of x. ceiling would mean surrender and giving up responsibility would only benefit my rivals who would carry on with insect decide by them in the car to die, staying in business, i have the leverage to generate awareness and to show that this transformation is possible to get on to the side of the continent. so moving cost is keen to demonstrate his commitment to that message as he piles up the company comp how to

create a new inspector assist. but he can't say for sure when his own metamorphosis will be complete. i got to admit, i did it a couple of weeks ago, took my 1st pandemic holiday flight, along with maybe 20 others on the plane even without the pandemic deviation. business is facing enormous challenges with sustainable flying. being high on the list, our reporter dan, her shalt took a look at a company that's taking a step in the right direction. almost 7000 leaders of asian fuel have been pumped into the tanks of his cargo plane. and they're not even half full yet. the flight from franklin to shanghai, china is a long one, but this flight is something special that congo subsidiary of germany's largest airline. lufthansa is operating this as a carbon neutral flight using sustainable ation fuel and reasoning. basically

a fuel based on plant oil. so the fuel emit only the carbon dioxide the plants that previously absorbed it doesn't have any extra seal to prevent an aircraft operated with sustainable ation. fuel emits up to 80 percent less greenhouse gases. but the climate friendly fuel costs between $3.00 and $6.00 times more than regular jet fuel. still some freight customers want to improve their carbon footprint and are willing to foot the bill like logistics company, devi shanker, which chartered this flight the climate neutral biofuel is produced at this refinery in porterville, finland an hour's drive from helsinki for more than 10 years. shami ya here, i mean, has been working on replacing the kerosene in evasion fuel with sustainable raw materials. the production process is using waste and received 2 types of oils and facts as material as used cooking, los alamos,

for the future we are exploring new role materials such as municipal solid waste. $100000.00 tons of biofuel are produced here every year. that's a drop in the bucket compared to the 300000000 metric tons that the world's airline operators consume annually. y'all, we are in and says that a breakthrough in climate for the aviation fuels will require government action. what we need is it's what the government's to, to create the market and create the requirements for, for industry to become more sustainable. other major carriers such as japan's a, n a l. friends, kale, m and american airlines have also started purchasing sustainable asian fuel for the airlines touting their green credentials is proving to be a good marketing tool to win over passengers and freight companies.

when until the bio fuel will soon be more than just a marketing tool, but a real alternative for the nation sector. that's our show. thanks for watching and see the me the news. the news

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ah ah was whose this is the w news live from or lead president she's been paying health china thrive as it reversible as a whole lavish celebrations, marking 100 years since the founding of the chinese communist party. she tells a flag waving crowd that the error of china being bullied is gone forever.

over still coming up, us committee and bill cosby is free from prison after his conviction for sexual assault is overturned. and a legal technicality.