What if this “river” of plastic waste could be turned into a road to connect farmers to markets? (Photo: Farouk Mollah Banna/World Bank) You cannot imagine my surprise while reading a BusinessWeek…

Yara Salem |

Can prepaid systems become an instrument to improve access and quality of water services to poor people in African cities and towns? Or does prepayment deny poor people more access to water? Do…

Chris Heymans, Kathy Eales |

Follow the authors on Twitter: @chyiyunhuang and @shomik_raj   A recent trip to Addis Ababa really brought the imperatives of transit-oriented development as a complement to mass transit…

Chyi-Yun Huang, Shomik Mehndiratta |