Sian Lewis explains how remote sensing can be used to manage natural disasters and highlights ongoing efforts and obstacles.

Developing nations are building their own satellites despite freely available Western data. Do the gains outweigh the costs, asks Tatum Anderson.

Remote sensing is crucial for getting the measure of forest loss. Countries don't need their own satellites but they do need training.

Today's maps are sophisticated tools, helping developing countries track everything from drought to disease, reports TV Padma.