Sepehr is an Iranian environmental blogger reporting on climate change and how it's affecting his country. His reporting has spurred protests and attracted media coverage that has protected natural areas from harmful development.

Concerned about the health and environment issues created by the absence of public toilets in most Nigerian cities, social entrepreneur Isaac Durojaiye started a unique mobile toilet initiative to provide decent toilet facilities in strategic locations across the country.  This video, shot by Magnum photographer Eli Reed, is part of the Rippling project, an Ashoka-Magnum Foundation partnership.