sewage
It's just the latest development in the ongoing debate about waste in UK waterways ahead of COP26.
But Boris Johnson has promised the UK 'won’t immediately send children up chimneys or pour raw sewage all over its beaches'.
Sewage is being analysed for traces of coronavirus to provide an early warning for local outbreaks.
The sewage system holds a lot of information about how many people are falling ill with Covid-19.