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 |

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 |

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 |

​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 |

Upon completion of the MOSE project in 2018, a series of flood gates between Venice's Lagoon and the Adriatic Sea will protect the city from high tide and storm surges. Credit: NASA Venice…

Linh X. Le |

Ancient cities, like Mohenjodaro in modern-day Pakistan, emerged relatively recently in human history (photo courtesy of Saqib Qayyum used through a Creative Commons license.)​ The growth of large…

Chandan Deuskar |

Technology use in schools at reasonably large scale began in many OECD countries in earnest in the 1980s and then accelerated greatly in the 1990s, as the Internet and falling hardware prices…

Michael Trucano |

On the eve of Earth Hour, taking place this Saturday 23 March, WWF this week announced the City of Vancouver in Canada as its Global Earth Hour City Challenge Capital 2013 at an award ceremony in…

Jim Leape |