Soiled rivers and seas, and huge dividends for shareholders: this is how water companies massage their figures

So that’s how they do it. I’d been wondering how, when more sewage has been entering our rivers than ever before , some of the water companies have managed to improve the ratio of the sewage they treat v the sewage that pours untreated from their storm overflows into our rivers and the sea. Now we know.

It’s called “ flow trimming ”. Sounds innocuous, doesn’t it? What it means is that sewage is diverted into rivers and ditches upstream of the water treatment works. By reducing the amount of sewage entering the works, the companies can claim to be dealing responsibly with a higher proportion of it.

George Monbiot is a Guardian columnist. Join him for a Guardian Live online event on Wednesday 8 May at 8pm BST. He will be talking about his new book, The Invisible Doctrine: The Secret History of Neoliberalism. Book tickets here

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Sewage pollutes our waterways, species face extinction. We must act fast to halt the decline – and we will

• Steve Reed is shadow environment secretary

We must not be the last generation to have the opportunity to marvel at nature.

When I was growing up, I took for granted the excitement of climbing trees in the local woods at the end of our road, sleeping under the stars at Scout camp, and exploring the micro-worlds of seaside rockpools on holiday in Cornwall. Our children and grandchildren deserve to be astounded by the magnificence of our landscapes and coastlines, mesmerised by the beauty of a robin’s song, and to splash about in the local river.

Steve Reed is the MP for Croydon North, and shadow secretary of state for environment, food and rural affairs

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Years after the emergency, the Michigan city is yet to replace all lead pipes and affected families are still awaiting justice

Earlier this month, Brittany Thomas received a call that her 11-year-old daughter Janiyah had experienced a seizure at school.

“She’d been seizure-free for about two years now,” said Thomas, a resident of Flint, Michigan. “And they just came back.”

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Green Finance Institute report said further pollution could cut 12% off GDP by 2030s

The destruction of nature over the rest of the decade could trigger a bigger economic slump in Britain than those caused by the 2008 global financial crisis and the Covid pandemic, experts have warned.

Sounding the alarm over the rising financial cost from pollution, damage to water systems, soil erosion, and threats from disease, the report by the Green Finance Institute warned that further breakdown in the UK’s natural environment could lead to a 12% loss of gross domestic product (GDP) by the 2030s.

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Region near Tulare Lake has been put on ‘probation’ as overpumping of water has caused faster sinking of ground

Even after two back-to-back wet years, California’s water wars are far from over. On Tuesday, state water officials took an unprecedented step to intervene in the destructive pumping of depleted groundwater in the state’s sprawling agricultural heartland.

The decision puts a farming region known as the Tulare Lake groundwater subbasin, which includes roughly 837-sq-miles in the rural San Joaquin valley, on “probation” in accordance with a sustainable groundwater use law passed a decade ago. Large water users will face fees and state oversight of their pumping.

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Removal of nearly 500 barriers last year will help restore disturbed waterways to their natural state, says Dam Removal Europe

Europe removed a record number of dams and other barriers from its rivers in 2023, a report has found, helping to restore its disturbed waterways to their natural states.

Nearly 500 barriers were taken out of European rivers last year, according to figures compiled by Dam Removal Europe, an increase of 50% from the year before.

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Ailing water company hopes higher bills can save it, but that depends on Ofwat agreeing its salvage plans are workable

A problem like Thames Water is everyone’s problem. People with only a passing interest in finance will still feel the ripple effects should it become insolvent.

It won’t be because the water stops coming out of the tap, or the cleanliness of Britain’s rivers – so clearly scarred by the effects of creaking infrastructure and raw sewage – worsens.

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Bogotá brings in water rationing with El Niño weather phenomenon meaning city could run out in under two months

Couples in Bogotá are being asked to shower together as water supplies are rationed in the Colombian capital.

Major neighbourhoods were cut off from the water grid on Thursday to preserve dangerously low water levels at reservoirs that have been starved of rain by the weather phenomenon known as El Niño.

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Thames Water owes hundreds of millions of pounds in debt, and the UK government is concerned about its potential collapse. Helena Horton reports

Thames Water, the UK’s biggest water company, which services 16 million people across the south of England, is facing criticism over its management.

Kemble, the parent company of Thames Water, told its creditors last week that it had defaulted on its debt. Amid fears that the company will collapse, the government is considering options for next steps.

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