Editorial credit: alionabirukova / Shutterstock.com Last week, the world came to attention when the famous Hulene dumpsite in Maputo, Mozambique collapsed under heavy rains, killing at least 16…

Silpa Kaza, Lisa Yao |

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 |

  Amina and her family in Dakar, Senegal have a metered private water tap in their yard,   but they don’t use it. (Photo: Sumila Gulyani / World Bank) Amina and her family had recently moved to…

Sumila Gulyani |

  When we think of urban expansion in the 21st century, we often think of ‘sprawl’, a term that calls to mind low-density, car-oriented suburban growth, perhaps made up of single-family homes.…

Chandan Deuskar |