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 |

The future is uncertain. It’s hard to know exactly how our climate will change. That means there is also deep uncertainty around its impacts on flooding, the most prevalent disaster worldwide. [[…

Adeline Choy, Zuzana Stanton-Geddes, Jolanta Kryspin-Watson |

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 |

About this series More blog posts The social inclusion of disadvantaged groups is necessary for reducing poverty and boosting shared prosperity, said government representatives, experts, and civil…

Lauri Sivonen |

​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 |