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 |

Palermo Water Treatment Plan, Agua y Saneamientos Argentinos, AySA, Buenos Aires Argentina set ambitious targets of providing universal access to water and 75 percent access to sewerage services…

Gustavo Saltiel |

Urban populations are booming, and the choices that local governments make today about managing their greenhouse gas (GHG) emissions directly impact the long-term health and economic well-being of…

Min Jung Kwon, Lisa Yao, Silpa Kaza, Sara Mills-Knapp, Beatriz Eraso Puig |

“Test and punish”? There’s a debate raging in American schools today: how (and how much) should children be tested? The No Child Left Behind (NCLB) Act created a system where all children in all…

Rafael de Hoyos, Peter Holland |

Lancinet Keita. Photo: Mamadou Bah On my first project visit since joining the World Bank, I had a chance to accompany the Productive Social Safety Nets project team across the country to the…

Mamadou Bah |

The impact of climate change on hydrology and other natural resources, and on many sectors of African economies—from agriculture to transport, to energy—has been widely researched and discussed.…

Magda Lovei |

The buzz around satellite imagery over the past few years has grown increasingly loud. Google Earth, drones, and microsatellites have grabbed headlines and slashed price tags. Urban planners are…

Sarah Elizabeth Antos, Nancy Lozano Gracia, Ana I. Aguilera |

In the previous blog, we discussed how remote sensing techniques could be used to map and inform policymaking in secondary cities, with a practical application in 10 Central American cities. In…

Sarah Elizabeth Antos, Nancy Lozano Gracia, Ana I. Aguilera |

Matching sheer ingenuity with technological prowess, the Netherlands (pop: 17 millions; about the size of Haryana state in India) today is one of the world’s most agriculturally productive…

Priti Kumar, Fokke Fennema |

Also available in: Français | Español | العربية The premise behind the Sustainable Cities photo competition was simple. [[tweetable]]We wanted to learn what people around the world “see” when they…

Xueman Wang, Dini Djalal |