President bolsonaros approach to fighting the fires in the amazon is not his only policy under scrutiny. He has made little secret of his uncompromising stance on crime saying this month that criminals will die in the streets like cockroaches. Statistics suggest that drug seizures are up and homicides down. But Campaign Groups say a consequence has been people dying at the hands of the police. Notjust in the crossfire, but they say in direct attacks. Hugo bachega reports from rio. Shouting. Another desperate mother in rio, another body lying on the ground. The blame again falls on the police. Jean rodrigo was a popular jujitsu coach. He was arriving at the project where he gave free classes to youngsters when he was killed by a shot to the head. Translation you think a lot of things. Was it because he was black, was at the entrance to a favela . He was a law abiding citizen. So why did they shoot him . This is alemao, where jean rodrigo died in may. Its one of rios largest favelas. Places like this are home to a million people. Most are law abiding but there are also ruthless criminals. As we go up the hill deep into the favela we are constantly reminded of who seems to control almost every aspect of daily life here. The graffiti on the wall and the initials of one of brazils largest drug gangs. The authorities who came to power injanuary have promised to be tough on crime, but it has proven to be a bloodbath. So far this year more than 1,000 people have been killed in Police Operations like this one in april. Some were shot in the head, others in the chest, allegedly even after having surrendered. For many, clear signs of unlawful executions. What we can see is the public authorities giving the wrong message, they are allowing this kind of violent approach. Rios governor Wilson Witzel posted this video on his twitter feed of him posing in a Police Helicopter during an operation. The governor has dismissed the criticism, saying his approach has led to a drop in violent crime. He has a ally in the far right president jair bolsonaro, who supports the sentiment of an old brazilian saying a good criminal is a dead criminal. Critics say the operations are often badly planned and unnecessarily put lives at risk, but Officials Say the criminals are the ones behind the violence. Translation when the police entered the favelas, they go to protect the innocent residents who live under the rule of traffickers, and when we enter, we are attacked. Police say officers were chasing armoured suspects whenjean rodrigo was shot, but a student who was with him told his family he does not think the killing was an accident. Translation i dont know why the police shot at us thinking we were criminals. They fired under the car, towards where we were. What did the police tell you . Nothing . Nothing. Now on bbc news protecting our planet. In a series of documentaries we will explore how best we can protect our precious planet, exploring Sustainable Solutions around the globe. How can we best protect our precious planet . Climate change and pollution are taking their toll. That much is now scientifically evident. But for all the uncomfortable truth, we hold the future in our hands. In this film, well be exploring Sustainable Solutions around the globe and meeting the individuals driving change in their communities. From housing to energy and fashion, these are some of the unique and surprising ways in which people from all walks of life are working to protect our planet. Listed in the jungles of bali, a surprising material is being used. Nested bamboo. Surprising material is being used. Nested bamboo. Its an important building material, it can be eaten by in insects if it isnt treated properly. Shes been pioneering the use of bamboo in new and ambitious constructions. Its a reference to mother earth. Bamboo is found in asia, australia, north and south america, and sub saharan africa. According to the guinness book of records, its the Fastest Growing plant on the planet. There are thousands of species of bamboo around the world and hundreds here in indonesia. The structure of this place, its six stories told. 700 square metres, four bedrooms, it has a big open living room, a kitchen and a dining room nestled right beside it. Those are open air and elected it lets the breeze come right through. Its built out of harvested bamboo 3 5 years into its growth. It is treated with a special solution before used in construction. In our team we have about 20 designers and another 90 people working together in a workshop nearby to prepare the bamboo material, constructive material and get the building built. My material and get the building built. My name is nathan and im a senior Architect Design currently relies on materials that will bend to your will. People love plastic, you can colour it, moulded, its the ultimate vanity. But bamboo has a strength similar to carbon fibre because the way the long fibres result in strength. Thats really important. Also critical in earthquake prone situations. The bamboo structure will kind of dance and ban long before it cracks under pressure. Dance and ban. Now we can probably treated, we can have people realise you can take advantage of the flexibility and incredibly efficient growth. While in laura and her teamwork to change perceptions bamboo and its using instruction in indonesia, japan cosmic capital city, entrepreneurs are also trying to challenge ideas about the materials we use and the longevity japans capital city. In this cafe, people are learning how to repair their electronics instead of throwing them out. Mobile phones and charges are being saved from the rubbish. Japan has the second highest volume of e waste in asia, according to the United NationsUniversity Global e waste monitor, with 2. 1 metric tons generated in 2016 alone. A lot of people have been evacuating and those people that in 2016 he and his wife created food for soul, a Non Profit Organisation that establishes immunity kitchens to fight food waste union using surplus ingredients and world class recipes. There are currently three in italy and others have been established in london, paris and rio dejaneiro. We are developing a 3d image of how we see italy, culinary world, the future of food, ourselves, our identity, and warming cycle that is getting larger and larger. And forming a circle. The garden is a little project because i am collaborating with a local high school, it is an Agriculture High school. It is really overwhelming, the emotion that i have working with them, and i am so that i have working with them, and i am so curious to that i have working with them, and i am so curious to see that i have working with them, and i am so curious to see the results. And thats how the last 25 years have gone by in a flash, because one thing leads to another and we can write off each others enthusiasm, which can be very dangerous but fortu nately we which can be very dangerous but fortunately we have two children and one of our children has a disability, and this disability has also given us really strong roots, does very grounded. They are also ambassadors of a fresh pasture lab where keepers of the tortellini craft passed their knowledge on to teenagers living with autism. Bringing these young adults together and teaching them a skill that they can learn, where they can have an identity, they can have an occupation, not only of their time during the day but also to have a profession, a skill that many other people dont have, my son charlie is able to make tortellini 100 times better than i am. They see their skills being put to use and at the end of two hours or three hours, or a four hour morning they have been making tortellini, a look at this incredible production they have made, all these beautiful handcrafted unique, small bites of love. Massimo employs the same philosophy in his three michelin starred restau ra nt in his three michelin starred restaurant as he does here. Nothing goes to waste. In some parts of the world, people are rapidly changing the way they produce food. Just off this oath of austria just off the coast of south korea, farmers are having to adapt to Climate Change by growing new crops. Rising computers have caused parts of the forest here to die and many theories and species are now endangered. Jeju island was once an independent kingdom. Today it isa once an independent kingdom. Today it is a special autonomous province, known for its volcanic rock formations and its dramatic coastlines. It has been estimated that Global Warming will cause korea to turn into a subtropical climate by 2070. Many locals are concerned about potential impact on the islands unique climate and culture. Because of rising temperatures, farmers like kim are now cultivating the fires, bananas, sugarcane and avocado. The banana tree yields about £55 of bananas. While a proprietary can produce around £88 of papaya. While a proprietary. Tera kim teaches dancing to remind people of their connection to nature. While tera jeju island while tera jeju island is while tera jeju island is facing a new climate, the erosion of the antarctic wilderness is getting scientists a new set of challenges. They are attempting to determine the age of the ice sheet, to track its history. Antarctica contained enough sea s to raise sea levels by about four metres. Where we are working has some of the fastest changing ice. The glaziers that contains them up ice. The glaziers that contains them up of particular interest to scientists around the world because of this rapid change. In order to understand how the ice might behave in the future, one of the crucial pieces of information is to understand how it behaved during past times of warmer conditions. Drilling kilometre long sediment and rock causing water thousands of metres deep is uncovering Vital Information hidden within hundreds of metres of core are microscopic treasures. The continent scale ice sheet has grown and shrugged over millions of years. But as a way to determine when that has happened, we need a time machine or a record of how it has behaved in the past. Truck. Sedimentary deposits and our drill core provide that time machine. But in order to determine the exact age, we use tiny microscopic fossils made of glass and these organisms give us a key to understanding these past records. These are known as diatoms. Diatoms are photosynthetic algae that live around the world in marine environments. They are very small, typically in the order of 50 microns, one microns is 1000th of a millimetre, so very small, we need a microscope to study them. Under the microscope most diatoms look like small disc of silica with very fine holes that are arranged in very fine holes that are arranged in very ornate patterns. Antarctica diatom is our particular importance for dating rocks, determining the ages of ancient rock layers. The history of the Antarctic Ice sheet is recorded in these rock layers. Antarctica is a vast continent, we know surprisingly little about its history, and these glassy organisms are one of the primary ways in which we can date the rocks from around antarctica and determine the evolution of the ice sheets through time. These tiny glass fossils are the time travellers of antarctic science. They help scientists to understand the history of this vast continent. And to predict the future of antarcticas ice sheets in what is rejected to be a much warmer planet. Projected. Across the world there are people striving to provide sustainable and Innovative Solutions to some of our biggest challenges. High and low tech, large and small scale, they are working towards preserving the nerves Natural Resources and protecting our planet. The earths Natural Resources. Hello there. Once again we saw 25 degrees or so across the south east of england, plenty of sunshine around, further north and west a lot more cloud and outbreaks of rain, in fact the last 2a hours have been very wet across scotland and Northern Ireland, thanks to this low pressure and this very active weather front which is slowly pushing its way southwards and eastwards all the while, as we head through saturday. So a very wet start in the north and west, temperatures though for most, even though it will be dryer further east, ranging from 12 15. Through saturday this weather front will be slowly slipping its way eastwards like i mentioned, but it will be a dying feature, by the time it reaches the eastern side of the country there will be barely anything on it. But from friday through to saturday, a lot of rainfall across Northern Ireland and scotland, 20 50 millimetres over the high ground of Northern Ireland, and 50 80 perhaps across the south west of scotland, particularly dumfries and galloway. Minor flooding will be an issue first thing on saturday, that front continues to journey eastwards, barely anything on it by the time it reaches the south east. Behind it skies brighten up, sunshine, a few showers around, those temperatures will be falling away. The mid teens celsius at best in the north for england and wales, 20 23 or 2a across the south east. That is the last of the warmth because as that cold front moves through, it will allow cooler air to spread to all areas. Clear skies during saturday night, there will be a few showers packing into northern and western areas, these will be blustery as the wind picks up too, notice the temperatures into single digits, particularly out of town, but even in some of the towns and cities further north. You can see we are into the colder air for sunday, sunday is the first of september, and the first day of meteorological autumn, it will certainly feel like that you wake up on sunday and it will feel very chilly. Lots of sunshine around and showers will get going across scotland, Northern Ireland into north west england, perhaps western wales, some could be heavy with a rumble of thunder mixed in, and it will feel quite chilly when the showers turn up. 12 15 in the north, 16 20 in the south. As we head on into monday, High Pressure wants to build in from the south west, that will settle things down but you notice this weather front pushing into the northern half of scotland, that will bring more cloud to the north and west of scotland, perhaps outbreaks of rain for the northern and western isles, perhaps a few spots of rain for Northern Ireland too, but the further south and east you are, because of the High Pressure, the winds will be lighter and we should see some sunshine around. So temperatures up a notch on monday, particularly noticeable across the south east. This is bbc world news. Our top stories days after turning down money offered by the g7, brazil accepts foreign help to deal with the fires in the amazon. A trial dates set for Khalid Sheikh mohammed accused of playing a leading role in planning the 9 11 attacks. Hong kong Police Arrest protesters and pro democracy lawmakers. The crackdown continues with a demonstration planned later on saturday now banned. 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