[[tweetable]]Medellin, Colombia is experiencing an extraordinary transformation.[[/tweetable]] Although it was known during the 1980s and most of the 1990s as the most violent city of the world,…

Ede Ijjasz-Vasquez, Pamela Sofia Duran Vinueza |

This week in Doha, the marble corridors of the Qatar National Convention Center resonate with voices from around the world. Over half way through the UN Climate Change Conference, as ministers…

Rachel Kyte |