Call for Irish government to 'intervene' in Lough Neagh crisis

A call has been made for the Irish government to “intervene” in the environmental crisis on Lough Neagh in Northern Ireland.

The lough, which is the largest freshwater lake in the UK and Ireland, has been largely covered by noxious blooms of blue-green algae over recent summers.

Photos taken at Lough Neagh in August showed ducks attempting to traverse water coloured a sickly green by pollution. Photo: Stephen Davison/Pacemakerplaceholder image
Photos taken at Lough Neagh in August showed ducks attempting to traverse water coloured a sickly green by pollution. Photo: Stephen Davison/Pacemaker

The cause has been put down to an excess of nutrients from a number of sources, including wastewater, septic tanks and agriculture, exacerbated by climate change and the invasive species zebra mussels.

A move by Stormont Agriculture, Environment and Rural Affairs Minister Andrew Muir to end NI Water’s protection from environmental penalties has been on the Executive table for months.

Blue-green algae at Battery Harbour on Lough Neagh in August 2025. Photo: Niall Carson/PAplaceholder image
Blue-green algae at Battery Harbour on Lough Neagh in August 2025. Photo: Niall Carson/PA

NI Water has been protected since its formation in 2007 from severe environmental enforcement and fines regarding wastewater pollution by the Statement of Regulatory Principles and Intent (SoRPI).

The framework is an acknowledgement of the antiquated wastewater infrastructure.

Mr Muir claimed in the Assembly earlier in the week that Sinn Féin ministers are “happy to progress” his bid to end SoRPI, but others have not supported it.

Sinn Fein president Mary-Lou McDonald said that paper was in the system, adding that her party’s Infrastructure Minister Liz Kimmins has “worked closely” with Mr Muir on it.

Blue-green algae on the River Bann where it meets Lough Neagh near the village of Toome in August 2024. Picture: Niall Carson/PAplaceholder image
Blue-green algae on the River Bann where it meets Lough Neagh near the village of Toome in August 2024. Picture: Niall Carson/PA

“Any delay that is about that matter is certainly not coming from Sinn Féin,” she said.

Ms McDonald added: “The situation with Lough Neagh is a national disgrace, when I say national I mean an all of Ireland disgrace.

“We have lobbied heavily for example for the government in Dublin to intervene and to be aware of this crisis.

“I think [intervention] is very likely; you’ll hear the taoiseach talk very regularly about the shared island fund, you will hear him talk about shared infrastructure, very often on a cross-border basis.

“Access to water as a resource is absolutely precious for communities right across our island, and what happens at Lough Neagh matters to all of us who live here. Our water infrastructure, the quality of our ground water, our water supply are matters of concern for all of us and we have to work co-operatively and in common cause.”

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