climate change tree a city tree of the future. we still have to see how they fare in urban settings my suspicion is they're far superior to native species. climate change is playing havoc with cities around the world. one reason many cities can't deal well with heavy rain or floods is that so much city surface is covered by concrete and water can't see into the ground. environmental scientists complained that this sealing effect means half of all rainfall is lost compared to woodlands and meadows and not available to people all nature. rain water that's channeled straight into drains and carried away is gone it can evaporate and it's removed from the natural water cycle effect evaporation cools the air and we feel that they start as you can all the sealed surfaces heat up a lot and stay hot if there's no cooling effect from evaporation that's one reason

we get urban heat islands and alternative approach can be found in southern belle them in a neighborhood where sponge city water management principles that then adopted here rainwater is collected on open ground and roofs and channeled into local pools it doesn't just disappear down the drain and it was to weigh on a clue that is a hydrologist who works for billions only in a simple water company think tank. i mean rainwater is a very valuable resource we need it to adapt oil city to a changing climate that's why our goal is to manage and use it locally. the entire project takes up 10 hecht is it's full of unpaved surfaces strips of garden and the roofs here also covered in soil and plants lots of opportunities for rainwater to be soaked up and slowly released into the ground and of that's come off the rain more to see into the ground between the paving stones. it flows into little

depressions in the ground it's like this one. but that's why there's a gap in the curb. and that water sinks in order to evaporate thus benefiting the trees so steam. that had from 11 set up his climate cops 5 years ago. his heat resistant trees can't do entirely without water but it will take time to find out just how much water they need and how well they adapt. using guns on fund to sit still in the early stages. when testing $61.00 species of tree seeing how they fare. we've been growing some of the species for decades so we already know their strengths and weaknesses and darkness up on a business story has so far raised 10000 trees new to germany's urban landscapes but better able to weather climate change trees like the turkey oak and you climb

a tree which is being introduced more frequently into hamburg's neighborhoods all of which should make for some pretty cool cities. warm huge charland good urban isolation with a growing amount of garbage here in lagos the producer the estimated 10 pounds in prawns will trash every day and only a small amount of bread to dispose off and then the big. things can get pretty if many in the city and more than that disease can spread and a water supplies become quantum mated a huge problem sometimes requires a huge investment if you appeal spent millions setting up a new power station and the other one to get using the plant supplies a quarter of the city's households with electricity sounds like 2 problems solved at once. this incineration plant called repeat is the

1st of its kind in africa it produces electricity for his capital city. every day at around 2000 tons of garbage delivered here 2 thirds of that is burnt. first the waste. is stored at the bunker for 5 days to release moisture then it is burned at a temperature between $8850.00 degrees celsius. chemists in take quick has been working here since the opening of the plant. the trash come in and but innit. after that he 3 would be hit so what that so i thought will create a stamp that this theme. that the white powder won't generate electricity.

the filters of the incinerators are made to be used hundreds so that is little pollution as possible leaks into the air. that makes it more eco friendly then open burning off waste on landfills which is still common in african countries. the plant was built on parts of the former question dumpsite at the outskirts of the city. that are rector elim a year who says that cautious up for about 50 years to discard the waste of this. his administration has transformed the dam site into a manageable landfill if this keeps away fires in better order through a streetman and guess venting there are a number of course this is never acceptable this was to analogy because they are not valid source out of the us was just which cannot move and which plan this facility will be disposed on the land he. repeated incineration plant was

constructed and funded by an international consortium and the ethiopian government it provides electricity to around 25 percent of households in at the sabha. it is. low capacity $25.00 maybe but it is contributing 4. cleaning the seat and it is contributing for. energy to the system so it will. other cities to. cleaning the city. of course call fired power plants or gas facilities efficient in making electricity then this incineration plant. but this waste energy system is not only generating electricity it is also saving land space preventing the release of toxic chemicals into groundwater and reducing the release of methane into the

atmosphere. getting your aunt in megacities is often a grueling business and can take hours there is a long entire funnyman has been going fast bowling steadily out wanted to cover more and more life it is now home to over 5000000 people if you like me on the air right now the city is starting to talk of the problem by developing a walking transit and banks need more than 100 kilometers of new pastorate are planned for coming here. there was a time when it will take up to 2 hours for it to get from his house to walk in the morning although he lives within the city limits of daddy's and i am he was dependent on mini buses that are the most common means of transport here. they usually jump back before you even get to and everyone is grazing together the

other problem is that they are so many traffic jams and you spend a lot of time just sitting and waiting to move it's also exhausting a couple problems with more than 6000000 inhabitants that is well known on its way to becoming the next to make the city in africa in the next couple of years the book nation is expected to belong to 10000000. look atari heads one of the agencies danced with that up thing and improving infrastructure. people were experiencing the look on just. their infrastructure. some of it was not very good so many hours were lost. being on the road going to work in the morning sun in the evenings when people went back home. one solution about its business up it chose a system with a network of dedicated bus lanes that bypassed much of the traffic across the city this is themself. 21 kilometers and has already cut travel time for some residents

in half. when you consider their options the bus systems appear to be easier to implementing your city because of. their cool train system and we also looked up inclusive it was when you. bring in a bus system most of the people working there right out of school be absorbed through into the new system it turns on n.p.r. object was supported by the institute for transport and development policy. before the b r t came into doors long of public transport services provided by heavily pouring mini buses and the b r t was able to replace 3000 vehicles with 140 high capacity busses. a much better emission standard. the new bus system has been a blessing placental and he is just one of the many thousands of passengers will

cut their commute by 50 hour was a month money right. before i felt bad because i was always getting home so that the kids will be asleep by the time i had arrived but it's so much better now i get to spend time with my kids. play with them because. gets me home so much faster i don't want to. once the project is completed in 2000 the time and it will cost $6.00 nines will cover $100.00 venkat acumen times until then so no need and either visit is of darkness and i am we have to rely on. what least some of the journalists. that's it involves a special edition of alba night vision think open showing as well if you're currently doing something to protect the environment would like to hear from me so please do get in touch with us on all social media platforms i am son of

a tree nobody else lining up in kampala in uganda. banks on drugs do join us again for another edition of i could offer a match straight from me crystal lens it's my bride from lagos nigeria take care i'll see you next week.

it was 260 s. like a bunch of the queen because i wanted to see if germany was the name the last few years have been quite override. evidence i've heard it all my time up when it comes to germany as on the whole so was look right in the eyes for a chance perhaps the biggest on the new hobby of mine i'm going down the river road i love to be in the news better for isn't there

a comfort when you feel the giving your realize it cause it's just another way of never say are you ready to meet the dr and i'm going to be right just do it. w.'s crime fighters are back africa's most successful radio drama series continues this season the stories focus on hate speech cholera prevention and sustainable charcoal production all of us odes are available online and of course you can share and discuss on g.w. africa's facebook page and other social media platforms. crime fighters tune in now . they were forced into a nameless mass. their bodies near tools. the history of the slave trade is africa's history. describes how the greeks for power

and profit plummeted an entire continent into chaos and violence the slave system created the greatest planned accumulation of wealth the world had ever seen up to that moment in time. from its very beginnings until this very day human trafficking has shaped the world. this is the journey back into the history of slavery i think will truly be making progress when we all accept the history of slavery as all of our history. our documentary series slavery routes starts march 10th on t w. this

is deja vu news live from berlin and historic verdict in the world's 1st court case over state sponsored torture in syria a former secret service agent is found guilty for his role in repressing regime protests 10 years ago victims and their relatives helped the conviction set a precedent. also coming up an iraqi preacher is jailed for 10 years from

radicalizing and the crude in young people to.