“Imagine the scene: tens of thousands of tonnes of sewage have backed up behind a jammed gate and a decision has to be made – to flood one of the world’s busiest airports or inundate a small river very few people know exist.
It is a stark version of the choices made daily around the planet between costly economic infrastructure and the natural world: inevitably, the River Crane, and its populations of perch, eels, kingfishers and dragonfly larvae, lost.
The Environment Agency, the UK’s official enforcement body, now reports almost the entire west London river has been “killed” by the huge influx of grey sludge washed down the toilets and drains of nearby Heathrow airport, starting last Saturday night. Experts, who estimate 3,000 fish are floating dead in and along the oxygen-starved Thames tributary, say it will take “months, probably years” to recover. Anglers and other people are being warned to stay out of the water in the seven mile stretch from the A4 to the River Thames at Twickenham, though the risk to the Thames itself is thought to be low.
Thames Water issued an apology in which the company said engineers battled for hours to free the jammed sluice gate and commandeered 20 trucks to haul sewage away by road before being:”
Read more: Guardian