Oria Adamo, 72 years old and the mayor of a small town in Central African Republic shows his ID card in the village of Ndu, Bas Uele province, Democratic Republic of the Congo where thousands fled…

Nicholas Oakeshott, Jonathan Marskell, Emily Weedon Chapman, Marie Benihirwe |

As the world urbanizes rapidly, [[tweetable]]international experience has shown that economic activities concentrate in a relatively small number of places[[/tweetable]] – it is estimated that…

Sameh Wahba, Judy Zheng Jia |