Rage against the dimming of the light: Campaigners fight to stop LED lighthouses – The Irish Times

The “loom of the light” is a phenomenon that lets you see the glow of a lighthouse from over the horizon. Particles of water vapour in the atmosphere scatter the light upwards so it can be glimpsed further than the line of sight. It is an optical wonder that has delighted – and guided – mariners for centuries.

But now some fear an environmental push towards low energy will extinguish a loom that stretches across the Irish Sea, draining beauty from the nocturnal landscape.

Campaigners say that the Commissioners of Irish Lights, the cross-border body that manages lighthouses on the island of Ireland, is on the verge of vandalising St John’s Point. This masterpiece of Victorian engineering, which towers 40m over a rocky headland in Co Down, is so evocative that it has inspired a short film, called Beneath the Beam; the cottages at its base are also available to

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