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From smugglers to supermarkets: the 'informal economy' touches us all. As I talk to him, Ahmed pulls his chair into his store to escape the hot Tunisian sun.

From smugglers to supermarkets: the 'informal economy' touches us all

He is a retired teacher – the years of screaming children can be counted in the rings framing his eyes. Behind him is his merchandise. *****Beyond the Map: Step inside the unexpected world of the favelas. Street market, México... American family living in a shanty, circa 1930's. Fire rages through shanty town. *****Top-down solutions: In Rio's oldest favela, a cable car ferries residents - but they're still waiting for sewers. *****Improving water pollution in squatter settlements (theconversation) Polluted water and inadequate water supply, sanitation and hygiene cause around 80% of diseases and one in four deaths in developing countries.

*****Improving water pollution in squatter settlements (theconversation)

The world is recognising that existing strategies simply aren’t working. We are starting a five-year project early this year to implement an innovative water-sensitive approach to revitalise 24 informal settlements in Fiji and Indonesia. Funded by the Wellcome Trust, the project aims to turn informal settlements into independent sites that: recycle their own wastewater;harvest rainwater;create green space for water cleansing and food cultivation; andrestore natural waterways to encourage diversity and deal with flooding. Working with local slum communities, the project will design and deliver modular and multi-functional water infrastructure. This project aims to reduce both environmental contamination itself and the likelihood of human contact with contaminants.

Time to rethink failed approaches The benefits of a new approach. The fog catcher who brings water to the poor. Self-help: From slum to success story: This is Ciudad Neza. By Ellen Wulfhorst.

Self-help: From slum to success story: This is Ciudad Neza

Drone photography by Johnny Miller. CIUDAD NEZA, Mexico, Oct 14 (Thomson Reuters Foundation) - Even if Eloisa Vasquez Morales had enough money to leave Ciudad Neza, once a sprawling slum and now a scrappy suburb east of Mexico City, the young mother says she would stay. So would Juan Francisco Perez Buendia, a government housing official, as well as Carlos Rodriguez and Victoria Gomez Calderon, a retired couple relaxing outside their neatly whitewashed house and garage. "I believe that I am here for a reason. Self-help: This slum had no sewerage system, so the residents built one themselves. In Orangi Town, home to an estimated 2.4 million people, residents have given up waiting for the government to instal public services - and built them by hand By Aamir Saeed KARACHI, Pakistan, Oct 13 (Thomson Reuters Foundation) - For Sultana Javed, one of dozens of residents living without proper sanitation on her street in the Orangi Town slum, the final straw came when her toddler daughter fell into the soak pit where the family disposed of their waste.

Self-help: This slum had no sewerage system, so the residents built one themselves

Since moving to the Gulshan-e-Zia area of the slum in Karachi nine years earlier, Javed had poured waste into the soak pit, a porous chamber that lets sewage soak into the ground and is often used by communities that lack toilets. Javed, whose son caught dengue fever from mosquitoes near the pit outside their home, began mobilising others among 22 families on her street to install their own sewerage system. WATCH: The self-service economy of the slum in action - bringing sewage systems to Orangi's residents. Informal sector: The thriving economy of one of Asia's biggest slums. Most homes in Dharavi double up as businesses - creating an economy worth $1bn by some estimates.

Informal sector: The thriving economy of one of Asia's biggest slums

Informal sector: Levels of Vending in Kariakoo, Dar es Salaam, Tanzania – Urban Vignettes. By Daniela Schofield.

Informal sector: Levels of Vending in Kariakoo, Dar es Salaam, Tanzania – Urban Vignettes

Streets of Kariakoo from a second storey shop In Kariakoo, Dar es Salaam’s largest and busiest market, all possible spaces are used for vending. Nearly anything can be purchased here from electronics to ceramic ware, work boots to jewellery. Vending of the market’s wide offerings happens at multiple levels of Kariakoo’s buildings and streets.

Informal sector - Garbage City: The scavengers making a fortune from other people's rubbish. Image copyright Alamy Despite the growing intolerance Copts face in Egypt, they are finding great success in the country's recycling business. It's the sweet, stifling, nose-crinkling scent that hits you first. Mingled with engine fumes and the whiff of hot sand as we burn up the Cairo motorway, it's the stink of damp cardboard and decaying fruit. It's the smell of Garbage City. Delhi, India contains approximately 16 million residents. The neighborhoods of Santosh Park and Uttam Nagar, both pictured here, are home to some of the city’s poorest people and contain its most built-up and densely populate.

José Carlos Mariátegui: Riesgos Cotidianos y Desastres Episódicos. 4.

José Carlos Mariátegui: Riesgos Cotidianos y Desastres Episódicos

Accidentes por condiciones de pobre accesibilidad y movilidad Uno de los principales riesgos cotidianos que enfrenta la población es causado por el difícil acceso que caracteriza este territorio. Las escaleras de concreto agudizan paradójicamente el riesgo de caídas debido a la manera de construirlas, con contrapasos (altura) muy altos e irregulares, pasos (ancho) estrechos y empinada inclinación. Muchas escaleras no cuentan con barandas ni descansos, lo que significa que si se produce una caída, esta no se detiene hasta el pie de la ladera.

Además, en muchos casos, se instalan las redes de agua y electricidad después de las escaleras teniendo que romper el hormigón para instalar las redes, pero sin las obras necesarias de reconstrucción. São Paulo, Brazil: favela consumed by fire – video.