On any rational cost-benefit basis, investing in preparedness, whether for pandemics or natural hazards, is possibly one of the best investments any country can make. A dollar spent on…

Abhas Jha |

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 |

[[tweetable]]How fast is your city growing? The answer may depend on where you live.[[/tweetable]] There are the booming megacities such as Tokyo, Mumbai, and Nairobi. Then there are cities that…

Ede Ijjasz-Vasquez, Paula Restrepo Cadavid |

Photo: Dane Macri/The Advocacy Project via Flickr CC. The relationship between poverty and disability goes both ways: [[tweetable]]disability increases the risk of poverty[[/tweetable]], and[[…

Charlotte McClain-Nhlapo |

Last November, 345 “Zika Warriors” took to the streets of Jamaica to fight the spread of the Zika virus in 30 communities. These local residents trained as vector control aides to prevent Zika…

Silpa Kaza, Lisa Yao, Jiwon Park |

  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 |