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 |

Every minute, dozens of people in East Asia move from the countryside to the city. The massive population shift is creating some of the world’s biggest mega-cities including Tokyo, Shanghai,…

Axel van Trotsenburg |

After months of preparation, the Sanitation Hackathon weekend is upon us.In dozens of countries around the world, IT and sanitation experts will join forces for an intensive brainstorming and…

Sanitation Hackathon Team |

New estimates released today by the World Health Organization (WHO), the United Nations Children's Fund (UNICEF), the United Nations Population Fund (UNFPA), and the World Bank show that the…

Samuel Mills, Emi Suzuki |