
Belfast, Northern Ireland – An algal bloom resurgence at Lough Neagh, the biggest freshwater body in the United Kingdom and Ireland, has renewed public debate about its ownership and management.
For months, extensive blue-green algal (cyanobacteria) growths have led to animal deaths, human sickness, temporary beach closures, and the permanent closure of businesses along the lake and connecting waterways. Regional agencies say the summer’s bloom reached “levels not seen since the 1970s”, while lough residents say they were the “worst” they have ever seen.