Climate Change Vulnerability Assessment Report for the Sceilg Mhichíl World Heritage Property

Nov 12, 2025

Authors

Prepared for the National Monuments Service and Office of Public Works by Carrig Conservation International's, Dr. Cathy Daly

Custodians
Connie Kelleher
Terri Sweeney Meade
Fergus McCormick
Partners

National Monuments Service, Office of Public Works, Preserving Legacies, ICOMOS, National Geographic Society

Heritage Type
Cultural
Climate Hazard
Erosion
Overview

This climate vulnerability assessment identifies intensifying climate change threats as well as climate adaptation solutions for Sceilg Mhichíl, one of two UNESCO World Heritage Properties in Ireland. Its isolation has contributed to the remarkable preservation of its cultural landscape, including the preserved early medieval monastic settlement and intact dry-stone architecture, and makes it an ideal habitat and vital location for breeding seabirds.

Combining expert analysis, stakeholder input, and community experience, the report outlines the following heightened climate risks threatening Sceilg Mhichíl: 

  • Impact on Birdlife: Higher ocean temperatures may be causing changes to food availability for breeding birds, impacting the natural heritage Outstanding Universal Value, a criteria for Sceilg’s UNESCO World Heritage List inscription.
  • Vegetation Loss and Habitat Degradation: Increased salt spray combined with longer dry periods is contributing to vegetation loss and potential habitat loss for bird species.
  • Impact on medieval Monastic structures: Increased rainfall is impacting on monuments due to increasing pressure and soil saturation

The assessment outlines a range of climate adaptation solutions, including:

  • Diversification of Tourism: Developing alternative attractions like guided boat trips and mainland visitor centers to reduce pressure on the main site, and increasing local involvement through "on-mainland experiences" and educational initiatives.
  • Increasing staff presence and expertise: Increasing staff presence on the island year-round for site management and improving ability to bring in specialized expertise when needed.
  • Monitoring and Research: Filling knowledge gaps through avian population surveys, soil analysis, continuous remote surveys of built heritage, rockfall monitoring and onsite weather monitoring.
  • Risk-Reduction Measures: Reevaluating the effectiveness of "rock sweeps" which are opportunities for staff to identify and reduce rock hazards that are increasing due to weathering and erosion and considering re-seeding vegetation on slopes.
  • Sharing Adaptation Knowledge: Positioning Sceilg Mhichíl as a model for wider climate action, promoting green energy and using the site as an educational tool on climate change impacts and adaptations.