it's an ongoing quest for the spring began in 2011 people stood up against correct rulers and dictatorship hopes for more security, more freedom and more dignity have their hopes been fulfilled. 10 years after the era spring and a rebellion starts june 7th on d. w. ah, ah, most of the news we hear about the state of the world is that so how about a change of perspective? we'd like to offer some good news from the blue planet. ah, for example,

in southern spain, the fruit and vegetables grown has supplied all of europe, new waters on track to make cultivation, eco friendly. and here's some good news out of las vegas, nevada. the desert city is a champion in conserving water resources. i use the mojave desert in the south west of the united states is the dryer region in north america. i guess if you have a big sticky rice with its elaborate fountains and more than 50 golf courses,

this is synonymous with extravagance, even when it comes to water. ah, let me hear the prices resumed thames almost entirely from the colorado river. i flows down from the rocky mountains into make me a huge man, made reservoir behind, down. ah, but the water level has been thinking for years. date, an unrelenting route is not enough funding up lake me. a millions of people depend on the water frontage rectify. ah, you think the situation in las vegas would be done? but take a closer look. and you're in for a surprise. ah,

kevin perry is a water come to charles the city on behalf of the local virtual authority. his job is to look for was wasted. the the rules here, sprinklers my only operates at night and just once a week during the winter. however, not all residents are abiding. well, there's 2 ways we go about it. we go through outreach, we go through conversations. those that choose not to adjust in and change their watering habits. we have an enforcement side that starts with penalties. monetary fees are charged and deals. monetary fees are on

a graduated scale. they have to pay it, or we will turn their water off as a delinquent, non payment for service. so if he's done solely issued funds, they also use incentives, spoke on apropos garden design, the southern nevada also authority pays residents to rip out her loan. that's because growth needs the loss of water was, isn't that we cycle the 30 pages, the equivalent of 27 years per square meter for removing water 1st to grow and replacing it with water assistance landscaping. an incentive for home owners and golf course operators. the conserving water doesn't mean doing away with green. amy's elden rust is a landscape designer who creates gardens. she describes as deserts and throughout

frenzy. when people get their new garden, take out all the grass and have this i find that a lot of them just really love to go out every day and see how things have changed and see the different smells and, and see how it's growing. and not knowing the grass and not having that water bill in these water conserving plant, replaced a water guzzling. don't lose pack. terry. and the gov is annisa to the desert. this is tita young, new god. and he last i were just

living here. you kind of understand what it means to safe and conserve water. and we wanted to have a different look and it was grass and it was nice and flowers. but this is kind of interesting. we're in the desert. and so we decided we should really have some really need desert landscaping and we really love it. and it's just fun to have it . and it looks, it looks great and it looks different. the water see keep close eye on private households in las vegas because they use the most of all the main, the wasteful. but in 1st, the water in hotel fountain is recycling and golf courses account for just 7 percent of the both the used in las vegas. the motor costs and authority are doing a good job. despite the population over the past couple of decades,

water use has dropped by a las vegas. it's reputation for excess. notwithstanding, has made strides in conservation the they also did it in europe, for example, in entered the caea in southern spain. it rarely rains and the ground is dry yet the region is packed with greenhouse line agriculture accounts for 70 percent of fresh water used in analisia. the ground water is, is to be depleted even so the situations not as bad as you might think. the one will get the kero phones

a hectic here so he's taken steps to minimize his consumption. he relies on the modern system and give his plans only as much as they need the instead of spraying water indiscriminately, he uses a refined system of truth irrigation. such modernized, farming methods have led to a decrease in water consumption across analisia by about 10 percent in 5 years. and there is more this sea water diesel. a nation sand provides enough water to irrigate a cruiser of the firms in the area that we do has demand for ground water. the

downside, however, is that the plant is powered by fossil fuels, which are harmful to the environment. but scientists are working on harnessing energy from the sun to make the diesel a nation process more acre. ah, this is the solar resource center in the tobacco enough dead physicists. yes. that casa and pillar fernandez, yvonne years researching ways to use solar energy to solve and lucy, as water problem, this solar panel system provides the energy to heat salt water until it evaporates to ensure a stable condition for his experiments. saragossa prepares the salt water himself.

ah, this self is removed from the artificial sea water in this test facility use it work by passing the water vapor through special membrane salt and trace minerals can't get through what comes out is distilled water. it can then be mixed with beneficial minerals, and he has been agriculture into the handle. garcia and your son as a physical occupant, almost 10 years in astrophysics. don't let me see what i'm out of to my last project was looking for water on mar julia. one more thing came in, but there came a point when i thought wouldn't it be better to look for water and i'll maria, than on mars. ok. ok. and focus on you put them in a few years time. we're going to have sustainable sea water desalination here and

media get here, then we will stop using ground water. and instead use water from the c. d. fallon, aided by solar energy so that i love the research conducted by pillar hernandez. the been years also revolves around the sun. the sea and her team use the sun's rays to disinfect, waste water, so it can be re used. the waste water comes from sewage treatment plant and contains harmful germs. chlorine is often used to kill pathogens and water, but it would not. so the problem here in and i'm still getting a major problem regarding water and farming is the amount that needs to be

disinfected. if the volume, that's the problem really matter. if we want to reuse waste water from treatment plan that still contains pathogen, we simply can't chlorinated all go that me, but it's very complicated to disinfect, so much water. and we can pick this up here, it's the sun's rays and a tiny amount of hydrogen peroxide that should kill the bacteria. but how clean is the resulting water? can it really be used in farming? finance is yvonne yes and her team test that out in this greenhouse ah, sounds lucid with untreated waste. water are a breeding ground for bacteria who this new router treatment process

mean plans will be kept pathogen free. ah, they conduct a test with the salad lead the news on the left. what happens when untreated waste water is on the right? what happens with treated water? the new method works and could even solve water problems in other countries, in the room around the world, wherever there is no clean water, no river, they irrigate with dirty water. this happens in the hall, vietnam, and madonna, the world health organization has reported online, and it's a real problem to irrigate with untreated wastewater. ah. although not all as and it is c, as problems have been solved,

the scientists are making strides. they progress gives reason for hope. ah, ah, still the world's growing population needs more than fruits and vegetables. fish also in demand with more and more being found. in fact, we will really can few more fish from agriculture spend from fisheries. many environmentalists criticized fish bombing because of the fish species and antibiotics that end up losing surrounding water and ecosystems. but agriculture doesn't have to be so destructive they don't yano national

park and stuff. question thing is a critical wetlands made up of pine grove marshland, and it's also a stock over for my grocery bird. the fingers lead us to a thought beside the parks of fish near the mouth of the river waddell chavira. this irrigation channel delivered water from the river to the farm, which is the size of full and a half 1000 soccer fields. the scale of the operation suggests industrial farming methods and all the problems that go along with it. but this is no ordinary fish bomb. the operators are committed to sustainability. they don't simply aim to produce as many fish as possible. the biologists,

miguel movies and shows the fish have plenty of rooms. even the baby ones that way they can grow up healthy without being loaded with antibiotics. the ones they weigh about 100 grams. they transferred to outdoor pools that resemble the natural habitat. the a 1000000 cubic meters of water from the rivers mouth pumped into the pools every day. fresh water that's rich and oxygen domingos are welcome. guess that the phone they fell to micro organisms out of the water. the, the fish film was created and previously drained marshlands

are key. so you know who we are restoring, what had been the last plant community and environment that is almost the same as the original, but like in the neighboring, don't yon national park. but we are also creating new values where i see this as the true face of sustainability that got lost and ended up along with those new values, a job for local fishermen. and because the fish aren't overcrowded in the outdoor tanks, there's not as much feces. oliver the fish becomes a delicacy. i propose fish farming over all people eat more species of fish and then of land based animals worldwide. we breed more than $600.00, a quite a creatures, including c q campus and jelly fish versus about $38.00 species of land animals

such as castle chickens and pay ah, here at the fish from hardly any fish extra meant remains. its been removed by natural means, plans on the banks here full to the water, so it can flow more cleanly back into the river. so beds, the thumb has become a red fees. the national park next door is very dry and the he's has stomach. but here, there is nourishment and water for about $250.00 different species, including the purple slum pen and the cloth. the ibis both humans and wildlife benefit from the fish, from min to me personally,

it's important to work here because it inspires others. so if they've got a okay, mid my daily routine, i sometimes forget that stuff. but when people come here and are interested in our approach to fish, read and come in. well, when i get emails from people as far away as in australia or the united states, asking about what we do because we need those and we really see that it's having an impact. and i think that will impact and that makes us feel very good. look at that . i'm in a deficit in the v. m. a stablish me and prove that fish farming can be environmentally friendly. but there are plenty of other examples between 232015. sustainable agriculture group i 75 percent per year. ah no to waste was it. here you see it flowing directly into a river worldwide. 80 percent of all waste water remains untreated and not any

enveloping countries. this sewage channel is in the hulu region in germany, a country that has a reputation for being clean. for more than a century, steel was produced and coal was mined. the display of the large volume of industrial waste for the am sure river was straight and lined with concrete and turned into an open air for many years. this was the only treatment planned on the it failed to properly clean the water. so what came out was still dirty and flowed into the riot. eventually the people he decided to do something about it. about 3 decades ago,

they set up a citizens initiative. people on the mc, m. george, lots of fruits of him, of the am sure, was heavily polluted. so we were no longer willing to accept that at home. in another we had seen how other regions were dealing with wastewater meat. they had enough treatment plans or credit and we simply did not lead to an i've missed the smell terrible, and was unhygienic, pretending residents to become environmental. active protests began in the late 1918 us just a few people to the street, but their numbers grew up. we took samples of the water and had them analyzed so we could tell people exactly what was in it. solutions toxins, carson engines and all the rest of the pressure mounted on local companies and the authorities in 2009 construction began on

a new underground sewage system. the 400 kilometers of tunnels have been built and the river is being withdrawn. ah, of course the underground pines have to be connected to sewage treatment plans before the water in the ship can flow clean once again. the . ah, that means the old plans being modernized, well, new ones are being built the

ought to be 5 in total between the waste water, from factories, offices, and homes across the region was the population of more than 2000000. the at the same time the river is being re natured, flood plains are being created to take in the water. when the overflows it's banks, it's already looking a lot better, and some animals are coming back and bird stuff is like wings and gray herons along the banks. there are fraud and grass the

5 days. the emerson being freed from its concrete bag, thinking through its canal, is being transformed into a real river again. the re max ration proceeds life along the m is appealing, once more biologists reintroducing species of fish that have long been essence such as coal has a scientist. so having a field day by the river, trout and stickle back have returned on their own 1st call for delegates, your delegation from around the world come to see what we've achieved on the i'm sure, a cool good. some bars. there are similar situations in parts of the southern hemisphere here in asia. for example, you want me to let you know that he's there have grown so quickly that nature has

been sacrificed, rivers destroyed and polluted. it's not just a problem here. this is how they want to apply the know how we've acquired and renaming our river here. that's not the the need sewage system and restoration of the near, incomplete the, that's good news for both of the barissi dockman soccer team. the stadium is right beside the river. our commitment to a good cause can indeed pay oh, some things are truly worth fighting for wherever you are, the people pursuing positive change deserve out there. making the world better play

and now is just as good a time as any to revel in good news from the blue planet. the news news. news. news. news, the news . the

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company research team to the pacific to the language of wales starts june, 4th on dw. mm. ah, [000:00:00;00] excuse me. this is d w. news live from berlin, columbia. as president of boy the military to restore order, after several more people are killed in demonstrations against writing poverty and inequality. we'll get an update from our correspondence. also coming up on the show before the democratic republic of congo after

a devastated volcanic eruption. now the 1st refugees are returning home,