Lahinch, Co Clare,  on Monday: “Ophelia was the strongest eastern Atlantic hurricane on records – dating back to the mid-1800s – as a category three hurricane,”  said UCC climatologist Dr Kieran Hickey. Photograph:  Aidan Crawley/EPA

Storm Ophelia may have set a wave height record in Irish waters, with a wave of just over 26m recorded at the Kinsale gas platform off the Cork coast.(...)

People watch the waves and sea spray in Lahinch, Co Clare. Photograph: Niall Carson/PA

Storm Ophelia caused one of five weather buoys to break its moorings off the Irish coast, and the highest individual wave recorded was 17.81 metres, a(...)

Minister for Climate Action and Environment Denis Naughten insisted: ‘This is a fair deal for Ireland and a good day for climate.’ File image: Reuters/Yves Herman

EU environment ministers have agreed national emissions-reduction targets in a push to show how the bloc is delivering on its climate goals ahead of U(...)

The mauve stinger: one of the two varieties of jellyfish responsible for the salmon kills.  File photograph: Franco Banfi/Getty Images

Swarms of stinger jellyfish have wiped out large stocks of salmon after invading four fish farms along the west coast of Ireland in recent weeks. It (...)

Winchman Ciarán Smith, a father of three from north Dublin, has been missing since Rescue 116 crashed with the loss of all four on board on March 14th last.

North Mayo gardaí say that the Rescue 116 helmet and lifejacket discovered on a beach at the weekend belongs to missing Irish Coast Guard winchman Cia(...)

Oysters were  the first ‘fast food’ of the industrial revolution. Photograph: BIM

Seamus Heaney paid homage to them, Roman emperors gorged on them and few myths have survived better than the purported link between aphrodisiacs and E(...)

Winchman Paul Ormsby remains missing after the crash

North Mayo gardaí have confirmed that a helmet and lifejacket discovered on a beach on the Mullet peninsula belongs to one of the two missing crewmen (...)

White clawed crayfish (Austropotamobius pallipes) underwater on riverbed, River Leith, Cumbria, England, UK. File photograph

Large numbers of dead freshwater crayfish have been reported in the River Barrow from Carlow to Graiguenamanagh, Co Kilkenny, in recent days. The ou(...)

Peter Tyndall with his grandson Ethan Walsh on his fishing boat ‘Shenandoah’ at Galway Docks. Photograph: Joe O’Shaughnessy

“Good news” and “marine research” may seem mutually contradictory, and rarely share the same hashtag on the Twitter machine. Ocean warming and acidif(...)

The white-clawed crayfish is a globally threatened species and Ireland holds one of the largest surviving populations. Photograph: Ragnar Schmuck

Water users are being urged to take extensive precautions to stop the spread of a highly infectious Crayfish Plague after confirmation of an outbreak (...)