Also available in: Español More than two months have passed since the whirlwind that was Habitat III, the UN’s once-every-20-year summit on cities and urban development. From big data to climate…

Sameh Wahba, Sarah Xinyuan Lin |

Building earthquake-resistant housing in Peru. Photo: USAID/OFDA, Auriana Koutnik/Flickr When a hurricane, earthquake or other natural disaster strikes a poor country, families too often suffer a…

Luis Triveno, Niels Holm-en |