The task of protecting the forest, which is rapidly disappearing because of illegal logging, pits the local protectors against not just the timber mafia but also officials whom the villagers allege are complicit.

Although I did years of work in prisoner support groups before being imprisoned, it didn’t prepare me for how it feels to be incarcerated, how it affects your family and your life’s direction. Hansen’s book is the nearest thing to opening a window into the inner life of that experience.

Using the latest satellite data and computer-modelling software, an international team looked at the connectivity of 12 million kilometres of rivers worldwide, providing the first global assessment of human impact on the planet’s waterways.