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  • The urine revolution: how recycling pee could help to save the world

    Chelsea Wald

    February 09, 2022 |

    Nature |

    Photojournalism |

    1500-3000 Words

    Response Location: Sweden, Gotland

    Companies and research initiatives around the world are developing and testing new toilets that can collect human urine and turn it into fertilizer. These urine diversion toilets have been implemented in places like South Africa with mixed results. However, researchers in Sweden are using portable toilets to gather the urine, dry it into fertilizer pellets that are then used to grow barley for beer. This work could show how to implement these kinds of toilets on a large scale.

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  • Wie diese Soldaten aus Mist Geld machen können

    Chelsea Wald

    October 14, 2019 |

    Tagesspiegel |

    Text |

    1500-3000 Words

    Response Location: Indonesia

    Die Larven der Schwarzen Soldatenfliege verwandeln Bio-Abfälle und selbst Fäkalien in hochwirksames Eiweiß. Weltweit arbeiten Unternehmen daran, diese Eigenschaft zu nutzen, zum Beispiel um Tierfutter daraus herzustellen. Je nach Land nach stoßen sie jedoch auf unterschiedliche Hürden.

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  • World in Progress: Garbage solutions and restored treasures

    Chelsea Wald

    May 06, 2019 |

    Deutsche Welle (DW) |

    Radio |

    5-15 Minutes

    Response Location: Indonesia, Surabaya

    In Surabaya, Indonesia, an unusual approach to composting is helping reduce waste. BSF technology is short for “black soldier fly,” a type of maggot that devours organic waste. Once it grows, it acts as a food source for livestock. Pending government regulation, people will be able to sell maggots and profit from the waste-saving process, helping the environment in the process.

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  • Cities without sewers

    Chelsea Wald

    February 28, 2019 |

    Rethink |

    Multi-Media |

    Over 3000 Words

    Response Location: Haiti, Cap-Haïtien

    A nonprofit in Haiti called SOIL with a business arm called EkoLakay is bringing back the old-fashioned idea of a container-based sanitation system. Customers rent toilets with containers in them, use them, and return them to EkoLakay to then be converted into highly nutritious compost. Piloted in 2011, the program has been successful serving more than 1,000 households (growing by 40 every month) with a staff of 58 mostly local workers. They attribute their success to using "applied resilience thinking", having many actors at different levels, and constantly adapting to new solutions and knowledge.

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