Hundreds of thousands of tons of plastic remain uncollected on Caribbean islands each year and voluminous waves of plastic waste wash up on the shores, especially after severe storms.

Karin Kemper, Tahseen Sayed |

In Mali, residents of Timbuktu take part in the maintenance of the Djingareyber Mosque, a World Heritage Site, applying traditional repair techniques. (Tiecoura Ndaou / UN Photo) Imagine a city…

Sameh Wahba, Barbara Minguez Garcia |