The latest in the 'River' series, chronicling England's biggest river, the Trent, as it flows through the industrial heartland of England. Stunning photography

Britain's rivers deserve to be better known. Teeming with wildlife, steeped in history, sporting bridges, docks and stunning architecture, not to mention suppor

Trace metals play key roles in life - all are toxic above a threshold bioavailability, yet many are essential to metabolism at lower doses. It is important to a