World Rivers Day: What role does animal farming play in river pollution?

Posted on the 24th September 2024

Factory farming of animals produces 50,000 tonnes of waste per day (that’s over 100 double-decker buses every hour!) which contains harmful pollutants. This waste can get spread on fields as fertiliser, seeping into the soil and ending up in our waterways, or it can leak directly from slurry tanks on farms.  

This World Rivers Day, the current health of the UK’s waterways is stark. Only 14% of rivers and lakes in England meet the criteria for good ecological health, and 60% of species who live in rivers are declining in population. 

Dairy is damaging our waterways 

Agriculture is the largest single source of river pollution in the UK* and dairy farming alone accounts for 75%. In fact, findings taken from the Environment Agency show that most UK dairy farms are not compliant with anti-pollution regulations, risking vast quantities of slurry spilling into waterways. 

In Devon – which is home to more cattle than any other county in England – a 2022 report found that 95% of dairy farms were in breach of environmental regulations and half were actively polluting a waterway at the time of inspection. Some of these farms had recently intensified their operations (e.g. more cows, indoor housing) but not updated their slurry storage facilities, allowing it to escape into local ecosystems.  

As well as impacts on the environment, animal farming also causes immense individual suffering, with dairy cows being among the most exploited animals on farms today: for up to five years, she’ll endure a near-constant cycle of pregnancy, birth and milking. Only once her body can no longer cope (e.g. she is too lame to walk to the milking unit or unable to give birth without help) will she be sent to slaughter. Read more. 

*In this context, “agriculture” includes pollution from both animal farming and the farming of arable land. Importantly, around half of the UK’s arable land is used to grow feed for farmed animals so ends up back on livestock farms anyway. 

“Slurry spreading due to lack of infrastructure, wet conditions and likely to cause pollution” - image taken from North Devon Dairy Report, 2022

Poultry, pollution, and the River Wye 

The River Wye once served as inspiration for the poetry of William Wordsworth but is today better known for its miles upon miles of algae blooms. This is largely because the River Wye is surrounded by hundreds of intensive chicken farms that produce huge amounts of chicken faeces. This waste is rich in nitrogen and phosphorus, which makes it a great fertiliser but also incredibly damaging to rivers, causing algae to bloom and cover the water’s surface, effectively starving the river – and its inhabitants – of oxygen. 

The counties of Shropshire, Herefordshire and Powys are poultry farming hotspots, home to over 1,400 “intensive poultry units” containing over 40 million chickens. Each one of those chickens can produce as much as 5kg of waste per month, which is often spread on land surrounding waterways or can even run directly from free-range egg farms into the water. 

Intensive chicken farms across Shropshire, Herefordshire and Powys, scaled by size of unit. Sourced from the Brecon and Radnor branch of Campaign to Protect Rural England (CPRE).

Take action 

The River Wye is one example of a much more widespread issue, which sees animal farming pushing both animals and the environment to their absolute limits. Take action today by making the switch to a kinder, cruelty-free and plant-based diet. 

Download a FREE Guide to Going Vegan

You can also take action by joining the March for Clean Water on 3rd November in London, which is being organised by River Action and a coalition of pressure groups and grassroots organisations. Find out more here

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