05/06/2026
Not the World Environment Day post we were hoping to make.
The confirmed death of more than 20,000 fish in the River Glyde, Co. Louth, is a devastating reminder of the ongoing crisis facing Ireland's freshwater ecosystems. has identified the source of the pollution as an agricultural discharge.
The Irish Wildlife Trust is calling for prosecution and urgent action to address agricultural pollution and protect Ireland's freshwater ecosystems.
While shocking, this is not an isolated incident. Agriculture remains the largest source of water pollution in Ireland and the leading cause of fish kills nationally. Yet while many rivers, lakes, and estuaries continue to decline, Ireland remains the only EU member state operating under a nitrates derogation. Repeated public calls for clean, healthy waterways have been overshadowed by powerful agricultural interests seeking exemptions from regulations designed to protect freshwater ecosystems.
Last year it was the Blackwater. This year it is the Glyde. These recurring incidents raise urgent questions about how we protect our waterways, enforce environmental regulations, and address nutrient pollution.
Ireland's rivers are vital for biodiversity, communities, recreation, and local economies. They should not be treated as collateral damage in the pursuit of short-term economic gain.
Read our latest blog on this issue: iwt.ie/river-glyde-fish-kill
📷 River Blackwater fish kill, 2025. Shane Cummins, Mallow Trout Anglers
Irish Environmental Network An Taisce The National Trust for Ireland EPA Ireland StreamScapes Sustainable Water Network - SWAN
Agriland.ie The Irish Times RTÉ News Irish Examiner