Open defecation is the practice of people defecating outside, such as in street gutters, behind bushes or into open bodies of water. Between 2000 and 2017, the world nearly...

Haruna Kashiwase |

Our planet is undergoing a process of rapid urbanization, and the next few decades will see unprecedented growth in urban areas, including in urban infrastructure. Most of the growth will take…

Maninder Gill, Vincent Roquet |

Also available in: Español | Français | 中文 The modern tramway system in Rabat Salé, Morocco. Photo: LukaKikina/Shutterstock When it comes to climate change, the transport sector is both a victim…

Jose Luis Irigoyen, Shomik Mehndiratta |

Most of us are familiar with Benjamin Franklin’s observation that “In this world nothing can be said to be certain, except death and taxes.”  For many of us, we could also add physical disability…

Chris Bennett |

Many dinner conversations and friendly debates proceed in a data vacuum: “The problem is big… very big!” How big exactly? Most likely your friend has no idea. It is often said that we live in a…

Nagaraja Rao Harshadeep |

Hardly a week goes by without my hearing the statement, “It’s not the What; it’s the How.”  On the reform of energy subsidies in the Middle East and North Africa, for instance, the discussion is…

Shanta Devarajan |

A cup of coffee in Caracas costs almost 200 times a liter of gasoline. Households in Turkey paid 74 times more than their Egyptian counterparts for bottled cooking gas in early 2013. The price…

Masami Kojima |

Open defecation – going outside without using a toilet or latrine – is one of the most important threats to child health and human capital, period; ending it must be a policy priority.

Jaehyang So, Dean Spears |

After months of preparation, the Sanitation Hackathon weekend is upon us.In dozens of countries around the world, IT and sanitation experts will join forces for an intensive brainstorming and…

Sanitation Hackathon Team |

Deep inside the ICRISAT campus just outside Hyderabad,  there are two sub-zero rooms that house the seeds of 120, 000 plants from over 100 countries and 120, 000 chances to change poor farmers…

Rachel Kyte |