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First national map reveals where Ireland’s coast is most exposed to erosion and flooding

8 Sep 2026
UCC researchers have developed Ireland’s first national Coastal Exposure Index, pinpointing where communities, cultural heritage and other coastal assets face the greatest exposure. Mayo has the largest stretch of coastline classified as “Very High Exposure”, at 414.5 km. Pictured above: Achill Island, Co. Mayo.

The first national map of Ireland’s exposure to climate hazards, including rising sea levels and storm surges, has identified the stretches of coastline facing the greatest pressures, providing critical new evidence to support coastal management and climate adaptation.

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Aistriú Taighde

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