More than 1, 000 years. That’s how long recent estimates suggest it would take in some developing countries to legally register all land – due to the limited number of land surveyors in country…

Linus Pott |

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 |

When I used to work in Rwanda, I lived on a small street in Kigali. Every time I invited friends over, I would tell them to “walk past the Embassy, look out for the Church, and then continue to…

Linus Pott |

Also available in: Français | Español | العربية The premise behind the Sustainable Cities photo competition was simple. [[tweetable]]We wanted to learn what people around the world “see” when they…

Xueman Wang, Dini Djalal |

This page in: Français Credit: Tracy Ben/ Shutterstock “At 14:28:04 on May 12, 2008, an 8.0 earthquake struck suddenly, shaking the earth, with mountains and rivers shifted, devastated, and parted…

Sameh Wahba, Luis Benveniste |

When a family of 10 smooth-coated otters appeared in Singapore’s urban downtown of Marina Bay last year, the city was ablaze with excitement and delight. Who would have thought that these otters…

Ede Ijjasz-Vasquez, Jon Kher Kaw, Fen Wei |

​Today, a quarter of the world’s population lives in urban “agglomerations”—supersized metropolitan areas that cut across jurisdictional boundaries and bring together one or more cities along with…

Ede Ijjasz-Vasquez, Philip E. Karp, Maria Angelica Sotomayor |

Many urban residents these days will find it hard to imagine a life without mobile apps that help us locate a restaurant, hail a cab, or find a subway station—usually in a matter of seconds

Xueman Wang |

Also available in: Russian The “miracle pine, ” a 250-year-old tree that survived the 2011 tsunami in Japan, has been preserved as a memorial to the 19, 000 victims of the disaster. (Photo via…

Ko Takeuchi |

ICT services offered by I Got Garbage in Bangalore [[tweetable]]Web platforms, apps, and citizen surveys are changing how solid waste management services are conducted globally[[/tweetable]] and…

Silpa Kaza, Lisa Yao, Claire Markgraf |