Leigh Cassidy explains how her grain research led to a system which can purify water poisoned by arsenic in Bangladesh

A project to remove arsenic from groundwater in Bangladesh began by accident, when Dr Leigh Cassidy from Aberdeen University was working on technology to treat industrially contaminated water in the UK.

Campaigners demand Jersey legal loophole be closed as financiers seek $100m from the DRC

Britain is being urged to help close down a legal loophole that lets financiers known as "vulture funds" use courts in Jersey to claim hundreds of millions of pounds from the world's poorest countries.

European fisheries chief hopes phasing out 'discarding' and agreeing plans with member states will preserve Europe's fish stocks