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 |

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 |

​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 |

Lorne Turner served as Manager of Performance Management for the City of Toronto. People wandering through the labyrinth of booths of yet another UN urban conference in Nanjing (2008) or Rio de…

Dan Hoornweg |