Maguirebridge’s Buried Freshwater
About 33,800 calibrated years ago, Ireland lay within the broad North Atlantic world affected by abrupt climatic shifts recorded especially clearly in Greenland ice cores. In that record, this approximate horizon falls close to the beginning of Greenland Interstadial 7, one of several comparatively milder interruptions within an overall cold glacial period. Such labels are valuable for comparison, but they must not be treated as a weather report for a given Irish valley or a single year. Climate signals took time to travel through different environments, while Irish terrestrial sequences are few and often difficult to date precisely.