As the world rushes to reduce the negative impacts of climate change, ambitious sub-national actors are rising to the fore. The recent One Planet Summit exemplifies this trend. Earlier this month…

Prashant Kapoor, Marc Forni |

From Canada to Kenya, nearly every country struggles to provide housing for all its residents. It’s a goal that has become a moving target: Migration – both rural-to-urban and cross-border – is…

Luis Triveno, Olivia Caldwell |

Also available in: Español | Français  | 中文  Machine learning algorithms are excellent at answering “yes” or “no” questions. For example, they can scan huge datasets and correctly tell us: Does…

Sarah Elizabeth Antos, Luis Triveno |

As the world urbanizes rapidly, [[tweetable]]international experience has shown that economic activities concentrate in a relatively small number of places[[/tweetable]] – it is estimated that…

Sameh Wahba, Judy Zheng Jia |

Volcán de Fuego in Guatemala, one of Central America’s most active volcanos, spews ash and lava flows in January 2018, just 70 kilometers west of Guatemala City. Image credit: NASA We live in an…

Jon Mikel Walton, Yann Kerblat, Sumati Rajput |

Editorial credit: alionabirukova / Shutterstock.com Last week, the world came to attention when the famous Hulene dumpsite in Maputo, Mozambique collapsed under heavy rains, killing at least 16…

Silpa Kaza, Lisa Yao |

Children are often told that home is where to run inside when thunders hit or when the rain comes, and that home is a safe place. However, for billions of people in the world, it is not.   By 2030…

Kristina Wienhoefer, Luis Triveno |

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 |

We are approaching the end of year two of implementing the Sustainable Development Goals (SDGs). In September 2015, global leaders from 193 countries set a 15-year deadline – by the year 2030 – to…

Mahmoud Mohieldin, Ede Ijjasz-Vasquez |