Flowing from mid-Wales to the Severn estuary in England, the River Wye - one of the UK’s longest watercourses – is impacted by everything that happens in its large catchment. It has suffered from years of pollution which has seen its waters coloured bright green from blooms of algae and its wildlife populations decimated. Last week, Natural England, the Westminster government’s advisory body, downgraded the official status of the English parts of the Wye to ‘unfavourable-declining’, due to the declines in key species such as the Atlantic salmon and white-clawed crayfish, as well as aquatic plants such as water crowfoot. The River Lugg, a tributary of the Wye which runs through Herefordshire, was similarly downgraded. Both rivers are Sites of Special Scientific Interest (SSSIs) which should afford them the highest environmental protections.