John Tyndall: how a lecture in Belfast 150 years ago supercharged the modern debate on consciousness
The global food system is owned by an ever smaller number of companies – it’s damaging our health, our communities and the planet
The trouble with England – why rioting in the UK has not spread to Scotland and Wales
Disease has killed most of the UK’s elm trees since the 1960s – but there are signs they may be making a comeback
