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 |

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 |

When first-time homeowner Dewi moved into her new house in the Yogyakarta area a year ago, thanks to a government subsidy program, she thought: everything is perfect.   Well, not quite. Located an…

Dao Harrison |

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 |

In 2006, I was working in Aceh, Indonesia (with the Red Cross), a region devastated by the 2004 Indian Ocean tsunami. Amongst other post-disaster recovery activities, we were working with 20…

Saurabh Dani |

[[tweetable]]Like many other developing countries, Afghanistan is urbanizing rapidly.[[/tweetable]] Today, a quarter of the country’s over 30 million people live in urban areas, with many more…

Ede Ijjasz-Vasquez, Catalina Marulanda |

[[tweetable]]When it comes to responding to disasters, time is of the essence.[[/tweetable]] Help needs to come immediately to save lives; recovery and reconstruction have to start swiftly to…

Zuzana Stanton-Geddes, Jolanta Kryspin-Watson |

Today is World Refugee Day, a day for us all to remember how many people are moved or displaced from their homes—either within their own country or across borders. The UN High Commissioner for…

Ede Ijjasz-Vasquez, Ayat Soliman, Catalina Marulanda, Robin Mearns |

​Today, a quarter of the world’s population lives in urban “agglomerations”—supersized metropolitan areas that cut across jurisdictional boundaries and bring together one or more cities along with…

Ede Ijjasz-Vasquez, Philip E. Karp, Maria Angelica Sotomayor |