a new technique. the scientists say the technique is likely to work on humans. now on bbc news — in 100 women — julia carneiro is in the brazilian city of rio dejaneiro tackling the issue of sexism in sport. we're challenging teams of women in four cities around the world to tackle everyday problems that blight their lives... in the workplace... we need a working prototype by tomorrow morning. in education... this is not functional — emojis not showing up in the overlay. on public transport... there's only, i don't know, 50 more to do or something. and on the sports field. using bbc outlets, the teams can appeal for help from around the world. they have just one week to find a modern solution

to a long—standing issue. welcome to the bbc‘s 100 women challenge. rio dejaneiro is a city famed for its passion for sport. it was home to the 2016 olympic and paralympic games and hosted the most recent football world cup in 2014. the beautiful game is adored by millions here but has an ugly past — for almost a0 years, women were banned from playing football in brazil. a government decree said it wasn't "suited to the female form," so from 1941 to 1979, women could not play. though the ban is now lifted, its legacy lives on. it's a real struggle for brazilian women to be taken

seriously in football. the 100 women challenge has come to rio to try to tackle sexism in sport and find solutions to level the playing field, inspiring women — here in brazil, and around the world. taking up the challenge are five women who have just five days to come up with ideas to help improve the situation for female footballers. time for some introductions. bia vaz from sao paulo has played for the brazilian national women's squad and professionally in the united states. fernanda is a rower and competed in her home city of rio in the olympic games last year. drika grew up in one of rio‘s favelas, dreaming

of playing football. now she's a coach for other children growing up in poverty. maira from sao paulo is a director of the women in sports programme for the campaign group think 0lga. and finally, two times 0lympic beach volleyball silver medallist adriana from rio is now on the brazilian olympic committee. part of her role is to keep women in sport.

our experts must reveal their solutions to sexism in sport at a mixed gender football match at the end of the week. it'll be a seven—a—side game and at least three of the players on each side must be female. the squad playing on behalf of the 100 women is made up of talented young brazilian footballers who are meeting for the first time today. it's also hoped these young players can offer some inspiration to our challenge team. oi! entao, essa aqui e a bia... even atjust 12 and 13 years of age, ana and luiza have already encountered a lot of resistance to their love of the game. with ana and luiza as their inspiration, the women start making plans

for the week ahead. maira and bia also take some time to reflect on the first day. the team is made up of high achievers, but none of them has ever taken on a challenge of this scale injust a week. it's going to be an interesting few days. we've had a really early start and just drove an hour and a half to reach the school in capim in the west zone of rio. we're going to see a very unique experience promoting gender equality in sport — korfball. korfball was invented just over 100 years ago in the netherlands so that

men and women could play alongside each other on the same team. school pe teacher shayla is a big fan of the sport because the sexes can compete on equal terms. although watching the korfball is useful, neither of these bia or maira are spectators in life, and they are itching to get stuck in. school is over for bia and maira, they are now off to university collecting ana and luiza along the way. arriving at rio‘s pontifical catholic university, luiza and ana head off for training with the university's women's team. meanwhile, bia, maira and fernanda are meeting football coach helena pacheco. she was the one who discovered one of the best female footballers in the world, the then—14—year—old marta at rio‘s saojanuario stadium. helena has agreed to become

the team super coach, they'll update her on the challenge and solutions they are coming up with to address sexism in sport. meanwhile, ana and luiza have a new recruit. 13—year—old maria willjoin them for saturday's game and together they are meeting the university team captain, nicole. with some great advice for our young players, it's time to see if coach helena has been equally inspiring, as our team thinks about ideas to beat sexism in the sport. yesterday's initial idea for an internet channel for female players by female players is also moving forward. so the women have three

solid solutions — now, theyjust have to make everything happen in three days, in time for saturday's match. a new day, and it's time to start turning ideas into reality. the experts want to raise awareness of women's football through some empowering messages. they've decided to have slogans printed on shirts for saturday's game. maira's a campaigner, and bia a footballer, so they make excellent designer's for the team's uniform. the new shirt will become the 100 women team's kit

for the match in two days. the girls‘ shirts say, "i play like a girl". the boys‘ shirts ask "i play with them, what about you?" and even the parents get a shirt with the message, "my girl plays football with pride." good job, good job. the young girls taking part, from the different areas in rio and it was time to get them back together. we have brought them to reopen temple of dreams, the maracana stadium. —— brought them to the. two

world cup throw have been played here, and to play here is beyond most aspiring players. —— world cups. it's lights, camera, action for the team's internet tutorials. as the filming of the tutorials continues, a new face appears.

13—year—old mc soffia is on familiar ground at the maracana. this talented rapper performed here during the opening ceremony of last year's 0lympics. she's come to meet our team and get inspired to write a special football anthem for the final match on saturday. with her performance at the match just two days away, mc soffia uses the iconic stadium as her rehearsal venue. the maracana has played host to some exceptional sights over the decades. i hope this visit by the 100 women challenge will make its way into the stadium's history books, too. there's just one day to go until

the mixed—gender football match. the young players are resting up ahead of their game. 0vernight, our bbc crew edited the video tutorials and it's time to reveal them to the experts. 0 primeiro truque que ce vai fazer e do falcao... giggling. the youtube channel is beginning to take shape, but it needs to be finished by tomorrow morning so they can share it with the young players. it's the last day of the final 100 women challenge of 2017. the football game is due to kick off

in a couple of hours. all week, the women have been working on new rules to make a mixed—gender football match fairer for females. to get some inspiration, two of the team, maira and bia, went to see a korfball game, where both sexes play alongside each other. when they were there, they recruited the school's pe teacher, sheila, to referee today's match. the other experts are showing off their completed youtube channel is back to the players. with the new rules in place, it's time to hand out the kit. the 100 women team are in orange. the 100 women team are playing against a mixed—gender team from the american school of rio. the school's players train together regularly,

but because there is no mixed—gender league, they've never played together in a competition before. this is a first for all our players, and now, it's time for kick—off. it's a great game so far, very competitive. the 100 women team is a little bit behind, but everyone‘s giving it their best. at half—time there are pep talks from parents, and words of wisdom from the coaches, before the whistle for the second half blows again. the match hasjust finished.

the 100 women team lost. it was 9—3 for the other team. the girls are a bit upset but they played really, really well. maria, how do you feel, how did you like the game? despite her disappointment, maria's talent hasn't gone unnoticed. all this week there has been a team behind the team,

every step of the way, our girl players have been supported by their family members. luiza's mother is confident about her daughter's future, but what about the player herself? how has this week left her feeling? though the 100 women football team didn't win the match,

we are claiming victory for the week itself. the messages the women wanted to convey came across loud and clear and the internet channel is a lasting legacy of the challenge. i hope and i wish that maybe in the next years we can see more after a very inspiring week, everyone has gathered for mc soffia to play the rap she made especially for this occasion about the empowerment of women in sport. hello. it has been an improving picture, with sunshine for most people, as well as some showers.

across the south and west, the next batch of rain arrives, with cold air across northern ireland and parts of scotland and it will briefly turn to snow, especially over the high ground. a cold night to come across scotland, temperatures around freezing, with the risk of ice. the mild air will be with england and wales saturday and sunday but there is rain in the northern half of the country. but with the mild air in the south, fairly strong winds, tightly packed isoba rs and much rain expected — we might have minorflooding in western parts of the uk by the end of the weekend. for saturday itself, plenty of sunshine in england and wales, and in the northern half it will remain breezy with plenty of showers. falling as snow in the highlands and grampians, and it will remain quite cold. some sunshine in northern ireland

through the central belt into southern scotland and the far north of england. apart from a few showers. england and wales, it is a mild day, 10—13c, and there will be a lot of cloud, but with more rain pushing in, becoming heavy. this is tied in with the area of low pressure. there is a deepening area of low pressure, so much so it has been named by the irish met service as storm dylan because it will be impacting the republic of ireland. further south, a windy night with outbreaks of rain, but again it will be mild here, 7—10, and a cold one for the north, certainly across scotland, especially where we have the snow falling. and now to new year's eve, it will be a wet and windy start. the rain, clearing from the eastern side, plenty of sunshine,

feeling mild, scattered showers in the north and west, some of it will be heavy. for the big night, the further east, the better chance of staying dry, there will be a cold wind but always more showers towards the west. this is bbc news. the headlines at five: weather warnings are in place for parts of northern england and scotland today after heavy snow and blizzard conditions. glasgow airport reopens after snow caused it to suspend all flights. passengers are advised to check with their airlines. 12 people including four children have died in a blaze at an apartment block in the bronx. new york's fire commissioner says it was caused by a child playing with a stove. it started from a young boy, three and a half years old, playing with the burners on his stove. the fire got started, the mother was not

aware of it, and was alerted by the young man screaming. scientists hail a medical breakthrough as bone tissue is re—grown in a lab, saving this dog's leg. trials will now see if the technique will work on humans.