He's been at he forefront of environmental activism since the 1970s, so what has he learned? What has been achieved and where should efforts be focused now?

Why sharing health data with governments might not be such a great idea, writes Roz Bellamy.

There has been a great deal of debate in recent years about finding a balance between privacy and security, writes Elise Thomas.

A “digital dark age” is looming unless a sophisticated regime for curating, preserving and accessing our data is established, the ‘father of the internet’, Vint Cerf.

Roboticist and robot ethics expert Ron Arkin explains what the rise of lethal autonomous systems will mean for the way wars are fought.

Increasingly, internet searchers type spiritual questions - about direction, meaning, judgement - into Google, writes Louise Omer.