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 |

Street names in Accra, Ghana. Photo credit: Ben Welle/ Flickr CC 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…

Linus Pott |

This blog is co-authored with Lawrence Haddad,  Executive Director, The Global Alliance for Improved Nutrition (GAIN)Other co-authors: Beatrice Montesi, GAIN  Martin P. Gambrill, The World Bank …

Claire Chase |