Festivalgoers’ urine to fertilise trees in Brecon Beacons restoration scheme

Fertiliser created from waste produced in block of toilets used by 700 revellers at Boomtown festival last year

Scientists are aiming to grow 4,500 trees at a national park with the help of fertiliser made from urine collected from festivalgoers.

The fertiliser was created by Bristol-based startup NPK Recovery, which connected their unit to a block of toilets used by 700 revellers at Boomtown festival in Hampshire in July last year.