As the world rushes to reduce the negative impacts of climate change, ambitious sub-national actors are rising to the fore. The recent One Planet Summit exemplifies this trend. Earlier this month…

Prashant Kapoor, Marc Forni |

#s2video_div.s7videoviewer{ width:100%; height:auto; }   var s7videoviewer = new s7viewers.VideoViewer({ "containerId" : "s2video_div", "params" : { "serverurl…

Ede Ijjasz-Vasquez, Elif Ayhan |

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 |

Cities are where most people live and most economic activity takes place.

Ellen Hamilton, Philip E. Karp, Karima Ben Bih |

As the world becomes increasingly urbanized, the number of megacities is growing rapidly. Today there are 37 cities worldwide with populations of greater than 10 million, and 84 with populations…

Philip E. Karp, Peter Ellis, Barjor Mehta |

[[tweetable]]How fast is your city growing? The answer may depend on where you live.[[/tweetable]] There are the booming megacities such as Tokyo, Mumbai, and Nairobi. Then there are cities that…

Ede Ijjasz-Vasquez, Paula Restrepo Cadavid |

Also available in: Русский | Română | Türkçe Ruins of the Church of Saint Paul, following the 1755 Lisbon earthquake. (Photo via Wikimedia Commons) [[tweetable]]Did you know that, in 1755,…

David Sislen, Alanna Simpson, Yann Kerblat |

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 |

The story of Krib, the top-performing local government in Tunisia   Tunisia’s transformation in the wake of the Arab Spring has been remarkable, and can be seen through a shift in the role and…

Ede Ijjasz-Vasquez, Ayat Soliman, Ayah Mahgoub, Sabine Beddies |