The fourth and final episode of the Geospatial Revolution Project is now live; it covers the use of geospatial technology to study and deal with climate change, drought, famine and disease, looks at the Map Kibera project as an example of cartography from the ground up, and wraps things up generally.

Previously: The Geospatial Revolution Project; The Geospatial Revolution Project, Episode Two; The Geospatial Revolution Project, Episode Three.