Between 1961 and 1995, regulations helped to increase water quality standards by treating all sewage entering the Thames. This is the story of how the Thames went from being ‘biologically dead’ to one of the world’s cleanest rivers in 60 years.
It may amaze you to learn that the River Thames is regarded as one of the cleanest rivers in the world. What is more astonishing is that it achieved that position just 60 years after researchers at London's Natural History Museum proclaimed it "bi...
