Rangers in Uganda take mobile phones and tablets on their forest patrols. But they aren't bringing them to text friends, scroll Instagram, or play Temple Run during downtime. They're using them to follow deforestation alerts generated by satellites circling the earth, and to upload photos of illegal logging they find.

This app, Forest Watcher, was developed by Jane Goodall Institute, World Resources Institute and Vizzuality. In this podcast, we take a trip to the field, then sit down to talk about Forest Watcher with Rachael Petersen, deputy director of Global Forest Watch at WRI, and Dr. Lillian Pintea, vice president of conservation science at the Jane Goodall Institute.