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 |

“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 |

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 |

Photo: CIF Action/Flickr For most of us, watching the weather forecast on TV is an ordinary, risk-free and occasionally entertaining activity. The weatherman even makes jokes! But when your income…

Diego Arias |

Countries are facing increasingly frequent negative impacts from adverse natural events. Central America, a region prone and vulnerable to disasters, is a clear example. Just from 1992 to 2011,…

Oscar A. Ishizawa, Juan Jose Miranda |

Globally 2.9 million people died from household air pollution in 2015, caused by cooking over foul, smoky fires from solid fuels such as wood, charcoal, coal, animal dung, and agricultural crop…

Ernesto Sanchez-Triana, Bjorn Klavdy Larsen |