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‘It’s dying in front of our eyes’: how the UK’s largest lake became an ecological disaster

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Sunday, September 14, 2025

The bright, cheery signs dot the shoreline like epistles from another era, a time before the calamity.“Ballyronan marina is a picturesque boating and tourist facility on the shores of Lough Neagh,” says one. “Contours of its historical past embrace the virginal shoreline.”Another sign boasts that the “rich ecological diversity and abundance of salmon and eels” has sustained communities there for thousands of years, since the stone age.A roadside billboard declares the Lough Neagh Fishermen’s Cooperative Society to be Europe’s biggest producer of wild eels. Yet another sign tells visitors that this majestic landscape of water and sky inspired Seamus Heaney’s Nobel-winning poetry.People feed ducks and sea gulls on the algae-covered shores of the lake. Photograph: Paul Faith/AFP/Getty ImagesBeauty, ecology, heritage, tourism, fishing – the UK’s biggest lake, sitting in the heart of Northern Ireland, had bragging rights to fill a hundred signs. But now they line the shoreline as testaments to hubris because of an environmental disaster.The 400 sq km (150 sq mile) freshwater lough is choking on recurring toxic algal blooms that coat the surface, kill wildlife, unleash stenches and make the lake all but unusable. Eel fishing has been suspended and tourists have fled.The lough and surrounding watercourses are on course to record their worst year, with at least 171 detections of cyanobacteria (blue-green algae) growths, according to a government pollution tracker. The algae’s return was a “distressing but timely reminder of the need to urgently turn the tide on the ecological crisis”, Northern Ireland’s environment minister, Andrew Muir, said in a statement.The algae on Lough Neagh forms patterns and swirls said to be reminiscent of works by Gustav Klimt. Photograph: Paul Faith/AFP/Getty ImagesThe main cause is an overload of phosphorus and nitrogen from agriculture, including farm runoff, fertilisers and animal waste. Inadequate wastewater treatment facilities and septic tank leakage aggravate the problems. Additional factors are sand extraction, warming water and proliferating zebra mussels, an invasive species.The Stormont executive agreed a rescue plan last year but has balked at reining in polluters, prompting condemnation from Claire Hanna, leader of the Social Democratic and Labour party: “Lough Neagh is dying in front of our eyes. Images of fish and eels gasping for life on the surface are not just shocking – they are a stark warning of total ecological collapse.”This week an activist, Bea Shrewsbury, attempted to present a “Lough Neagh smoothie”, drawn from the lake, to assembly members at Stormont. Police escorted her away.The lough supplies 40% of Northern Ireland’s drinking water, which is treated and said to be safe. Not everyone is convinced. “I’ve not drunk from the tap in a year,” said Brigid Laverty, 67, who lives by the lake. This week the Food Standards Agency said toxins have been found in the flesh of some fish for the first time but that commercially harvested fish remained safe to eat.A sign by Lough Neagh extols the lake’s history and ecology. Photograph: Rory Carroll/The GuardianThe water should be light brown but has turned green, said Peter Harper, an environmental officer with the Lough Neagh Partnership, a nonprofit group. In some places the sludge – so widespread it is visible from space – forms mosaic-type patterns and swirls redolent of Gustav Klimt, said Harper. “It can be weirdly beautiful.”The impact on wildlife is incalculable, making the tourism-themed shoreline signs a grim joke. “What lies beneath?” says one. “A world of ancient history and astounding myths is waiting just below the surface. What unique creatures have made the lough their home?”skip past newsletter promotionThe planet's most important stories. Get all the week's environment news - the good, the bad and the essentialPrivacy Notice: Newsletters may contain information about charities, online ads, and content funded by outside parties. If you do not have an account, we will create a guest account for you on theguardian.com to send you this newsletter. You can complete full registration at any time. For more information about how we use your data see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionAnother sign exhorts visitors: “This special place deserves respect … please keep dogs on leads.” It urges swimmers to be careful because conditions can change fast. But there are no swimmers, and virtually no boats, because there is no demand and algae clogs engines.A buildup of algae at Toome lock at the north end of Lough Neagh. Photograph: Rory Carroll/The GuardianA more recent sign, tacked to a lamp-post at Ballyronan marina, is more up to date: “Spotted a dead wild bird? Use the DAERA dead wild bird reporting tool service if you find dead gulls, waders, ducks or swans.”DAERA is the department of agriculture, environment and rural affairs – a bureaucracy that critics say prioritised the farms and agrifood companies that expanded pig, chicken and cattle numbers in the past decade and overloaded the soil’s ability to absorb nutrients. They did so with official blessing in a “going for growth” strategy.“It was not thought through,” said Gerry Darby, the manager of the Lough Neagh Partnership. “I’ll put it another way. The guy who did the calculations about nutrient levels knew fuck all about fuck all.”Gerry Darby of the Lough Neagh Partnership. He said the lake could die unless action is taken to clean it up. Photograph: Rory Carroll/The GuardianMuir, of the Alliance party, said his department had completed or made good progress on most of the 37 points in an action plan agreed last year, but said Stormont faced “difficult decisions” over key measures. Sinn Féin and the Democratic Unionist party, who dominate the executive, appear to have stalled the nutrients action programme over fears of a farmer backlash.Darby said there was no magical solution, only trade-offs, but still expressed confidence that politicians would take the necessary measures. “The lake is not dead,” he said. “It could be dead if things continue as they are.”

Signs tout a natural paradise, but pollution from over-farming has left Northern Ireland’s Lough Neagh choked by toxic algaeThe bright, cheery signs dot the shoreline like epistles from another era, a time before the calamity.“Ballyronan marina is a picturesque boating and tourist facility on the shores of Lough Neagh,” says one. “Contours of its historical past embrace the virginal shoreline.” Continue reading...

The bright, cheery signs dot the shoreline like epistles from another era, a time before the calamity.

“Ballyronan marina is a picturesque boating and tourist facility on the shores of Lough Neagh,” says one. “Contours of its historical past embrace the virginal shoreline.”

Another sign boasts that the “rich ecological diversity and abundance of salmon and eels” has sustained communities there for thousands of years, since the stone age.

A roadside billboard declares the Lough Neagh Fishermen’s Cooperative Society to be Europe’s biggest producer of wild eels. Yet another sign tells visitors that this majestic landscape of water and sky inspired Seamus Heaney’s Nobel-winning poetry.

People feed ducks and sea gulls on the algae-covered shores of the lake. Photograph: Paul Faith/AFP/Getty Images

Beauty, ecology, heritage, tourism, fishing – the UK’s biggest lake, sitting in the heart of Northern Ireland, had bragging rights to fill a hundred signs. But now they line the shoreline as testaments to hubris because of an environmental disaster.

The 400 sq km (150 sq mile) freshwater lough is choking on recurring toxic algal blooms that coat the surface, kill wildlife, unleash stenches and make the lake all but unusable. Eel fishing has been suspended and tourists have fled.

The lough and surrounding watercourses are on course to record their worst year, with at least 171 detections of cyanobacteria (blue-green algae) growths, according to a government pollution tracker. The algae’s return was a “distressing but timely reminder of the need to urgently turn the tide on the ecological crisis”, Northern Ireland’s environment minister, Andrew Muir, said in a statement.

The algae on Lough Neagh forms patterns and swirls said to be reminiscent of works by Gustav Klimt. Photograph: Paul Faith/AFP/Getty Images

The main cause is an overload of phosphorus and nitrogen from agriculture, including farm runoff, fertilisers and animal waste. Inadequate wastewater treatment facilities and septic tank leakage aggravate the problems. Additional factors are sand extraction, warming water and proliferating zebra mussels, an invasive species.

The Stormont executive agreed a rescue plan last year but has balked at reining in polluters, prompting condemnation from Claire Hanna, leader of the Social Democratic and Labour party: “Lough Neagh is dying in front of our eyes. Images of fish and eels gasping for life on the surface are not just shocking – they are a stark warning of total ecological collapse.”

This week an activist, Bea Shrewsbury, attempted to present a “Lough Neagh smoothie”, drawn from the lake, to assembly members at Stormont. Police escorted her away.

The lough supplies 40% of Northern Ireland’s drinking water, which is treated and said to be safe. Not everyone is convinced. “I’ve not drunk from the tap in a year,” said Brigid Laverty, 67, who lives by the lake. This week the Food Standards Agency said toxins have been found in the flesh of some fish for the first time but that commercially harvested fish remained safe to eat.

A sign by Lough Neagh extols the lake’s history and ecology. Photograph: Rory Carroll/The Guardian

The water should be light brown but has turned green, said Peter Harper, an environmental officer with the Lough Neagh Partnership, a nonprofit group. In some places the sludge – so widespread it is visible from space – forms mosaic-type patterns and swirls redolent of Gustav Klimt, said Harper. “It can be weirdly beautiful.”

The impact on wildlife is incalculable, making the tourism-themed shoreline signs a grim joke. “What lies beneath?” says one. “A world of ancient history and astounding myths is waiting just below the surface. What unique creatures have made the lough their home?”

skip past newsletter promotion

after newsletter promotion

Another sign exhorts visitors: “This special place deserves respect … please keep dogs on leads.” It urges swimmers to be careful because conditions can change fast. But there are no swimmers, and virtually no boats, because there is no demand and algae clogs engines.

A buildup of algae at Toome lock at the north end of Lough Neagh. Photograph: Rory Carroll/The Guardian

A more recent sign, tacked to a lamp-post at Ballyronan marina, is more up to date: “Spotted a dead wild bird? Use the DAERA dead wild bird reporting tool service if you find dead gulls, waders, ducks or swans.”

DAERA is the department of agriculture, environment and rural affairs – a bureaucracy that critics say prioritised the farms and agrifood companies that expanded pig, chicken and cattle numbers in the past decade and overloaded the soil’s ability to absorb nutrients. They did so with official blessing in a “going for growth” strategy.

“It was not thought through,” said Gerry Darby, the manager of the Lough Neagh Partnership. “I’ll put it another way. The guy who did the calculations about nutrient levels knew fuck all about fuck all.”

Gerry Darby of the Lough Neagh Partnership. He said the lake could die unless action is taken to clean it up. Photograph: Rory Carroll/The Guardian

Muir, of the Alliance party, said his department had completed or made good progress on most of the 37 points in an action plan agreed last year, but said Stormont faced “difficult decisions” over key measures. Sinn Féin and the Democratic Unionist party, who dominate the executive, appear to have stalled the nutrients action programme over fears of a farmer backlash.

Darby said there was no magical solution, only trade-offs, but still expressed confidence that politicians would take the necessary measures. “The lake is not dead,” he said. “It could be dead if things continue as they are.”

Read the full story here.
Photos courtesy of

EPA urged to classify abortion drugs as pollutants

It follows 40 other anti-abortion groups and lawmakers previously calling for the EPA to assess the water pollution levels of the drug.

(NewsNation) — Anti-abortion group Students for Life of America is urging the Environmental Protection Agency to add abortion drug mifepristone to its list of water contaminants. It follows 40 other anti-abortion groups and lawmakers previously calling for the EPA to assess the water pollution levels of the abortion drug. “The EPA has the regulatory authority and humane responsibility to determine the extent of abortion water pollution, caused by the reckless and negligent policies pushed by past administrations through the [Food and Drug Administration],” Kristan Hawkins, president of SFLA, said in a release. “Take the word ‘abortion’ out of it and ask, should chemically tainted blood and placenta tissue, along with human remains, be flushed by the tons into America’s waterways? And since the federal government set that up, shouldn’t we know what’s in our water?” she added. In 2025, lawmakers from seven states introduced bills, none of which passed, to either order environmental studies on the effects of mifepristone in water or to enact environmental regulations for the drug. EPA’s Office of Water leaders met with Politico in November, with its press secretary Brigit Hirsch telling the outlet it “takes the issue of pharmaceuticals in our water systems seriously and employs a rigorous, science-based approach to protect human health and the environment.” “As always, EPA encourages all stakeholders invested in clean and safe drinking water to review the proposals and submit comments,” Hirsch added. Copyright 2026 Nexstar Media Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

Trump’s EPA' in 2025: A Fossil Fuel-Friendly Approach to Deregulation

The Trump administration has reshaped the Environmental Protection Agency, reversing pollution limits and promoting fossil fuels

WASHINGTON (AP) — The Trump administration has transformed the Environmental Protection Agency in its first year, cutting federal limits on air and water pollution and promoting fossil fuels, a metamorphosis that clashes with the agency’s historic mission to protect human health and the environment.The administration says its actions will “unleash” the American economy, but environmentalists say the agency’s abrupt change in focus threatens to unravel years of progress on climate-friendly initiatives that could be hard or impossible to reverse.“It just constantly wants to pat the fossil fuel business on the back and turn back the clock to a pre-Richard Nixon era” when the agency didn’t exist, said historian Douglas Brinkley.Zeldin has argued the EPA can protect the environment and grow the economy at the same time. He announced “five pillars” to guide EPA’s work; four were economic goals, including energy dominance — Trump’s shorthand for more fossil fuels — and boosting the auto industry.Zeldin, a former New York congressman who had a record as a moderate Republican on some environmental issues, said his views on climate change have evolved. Many federal and state climate goals are unattainable in the near future — and come at huge cost, he said.“We should not be causing … extreme economic pain for an individual or a family” because of policies aimed at “saving the planet,” he told reporters at EPA headquarters in early December.But scientists and experts say the EPA's new direction comes at a cost to public health, and would lead to far more pollutants in the environment, including mercury, lead and especially tiny airborne particles that can lodge in lungs. They also note higher emissions of greenhouse gases will worsen atmospheric warming that is driving more frequent, costly and deadly extreme weather.Christine Todd Whitman, a Republican who led the EPA for several years under President George W. Bush, said watching Zeldin attack laws protecting air and water has been “just depressing.” “It’s tragic for our country. I worry about my grandchildren, of which I have seven. I worry about what their future is going to be if they don’t have clean air, if they don’t have clean water to drink,” she said.The EPA was launched under Nixon in 1970 with pollution disrupting American life, some cities suffocating in smog and some rivers turned into wastelands by industrial chemicals. Congress passed laws then that remain foundational for protecting water, air and endangered species.The agency's aggressiveness has always seesawed depending on who occupies the White House. Former President Joe Biden's administration boosted renewable energy and electric vehicles, tightened motor-vehicle emissions and proposed greenhouse gas limits on coal-fired power plants and oil and gas wells. Industry groups called rules overly burdensome and said the power plant rule would force many aging plants to shut down. In response, many businesses shifted resources to meet the more stringent rules that are now being undone.“While the Biden EPA repeatedly attempted to usurp the U.S. Constitution and the rule of law to impose its ‘Green New Scam,’ the Trump EPA is laser-focused on achieving results for the American people while operating within the limits of the laws passed by Congress,” EPA spokeswoman Brigit Hirsch said. Zeldin's list of targets is long Much of EPA’s new direction aligns with Project 2025, the conservative Heritage Foundation road map that argued the agency should gut staffing, cut regulations and end what it called a war on coal on other fossil fuels.“A lot of the regulations that were put on during the Biden administration were more harmful and restrictive than in any other period. So that’s why deregulating them looks like EPA is making major changes,” said Diana Furchtgott-Roth, director of Heritage's Center for Energy, Climate, and Environment.But Chris Frey, an EPA official under Biden, said the regulations Zeldin has targeted “offered benefits of avoided premature deaths, of avoided chronic illness … bad things that would not happen because of these rules.”Matthew Tejada, a former EPA official under both Trump and Biden who now works at the Natural Resources Defense Council, said of the revamped EPA: “I think it would be hard for them to make it any clearer to polluters in this country that they can go on about their business and not worry about EPA getting in their way.”Zeldin also has shrunk EPA staffing by about 20% to levels last seen in the mid-1980s. Justin Chen, president of the EPA’s largest union, called staff cuts “devastating.” He cited the dismantling of research and development offices at labs across the country and the firing of employees who signed a letter of dissent opposing EPA cuts. Relaxed enforcement and cutting staff Many of Zeldin's changes aren't in effect yet. It takes time to propose new rules, get public input and finalize rollbacks. It's much faster to cut grants and ease up on enforcement, and Trump's EPA is doing both. The number of new civil environmental actions is roughly one-fifth what it was in the first eight months of the Biden administration, according to the nonprofit Environmental Integrity Project. “You can effectively do a lot of deregulation if you just don’t do enforcement,” said Leif Fredrickson, visiting assistant professor of history at the University of Montana.Hirsch said the number of legal filings isn't the best way to judge enforcement because they require work outside of the EPA and can bog staff down with burdensome legal agreements. She said the EPA is “focused on efficiently resolving violations and achieving compliance as quickly as possible” and not making demands beyond what the law requires.EPA's cuts have been especially hard on climate change programs and environmental justice, the effort to address chronic pollution that typically is worse in minority and poor communities. Both were Biden priorities. Zeldin dismissed staff and canceled billions in grants for projects that fell under the “diversity, equity and inclusion” umbrella, a Trump administration target.He also spiked a $20 billion “green bank” set up under Biden’s landmark climate law to fund qualifying clean energy projects. Zeldin argued the fund was a scheme to funnel money to Democrat-aligned organizations with little oversight — allegations a federal judge rejected. Pat Parenteau, an environmental law expert and former director of the Environmental Law School at Vermont Law & Graduate School, said the EPA's shift under Trump left him with little optimism for what he called “the two most awful crises in the 21st century” — biodiversity loss and climate disruption.“I don’t see any hope for either one,” he said. “I really don’t. And I’ll be long gone, but I think the world is in just for absolute catastrophe.”The Associated Press receives support from the Walton Family Foundation for coverage of water and environmental policy. The AP is solely responsible for all content. For all of AP’s environmental coverage, visit https://apnews.com/hub/climate-and-environmentCopyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – December 2025

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