Throughout Ireland, there is a bunch of evidence to support that there were glaciers on the island at one point. Below are a couple of examples of the aftermath of a glacier melting.
The first example of glacial activity in Ireland is the existence of large boulders in seemingly random locations. These boulders are called erratics. These are formed as a glacier expands and large rocks are moved by the glacier. As the glacier melts the rocks will be left behind making them look as though they were randomly placed.
The image above is an erratic rock, it just appears in the middle of nowhere and seems random.
The next examples of glacial activity in Ireland are all of the small lakes found on the island. These were formed as the glaciers melted, then pieces of the glacier broke off and were left behind. Often times the glaciers get left behind because they lie between hills or drumlins. Once these left behind ice chunks melt, small lakes form.
The lake above is a glacial lake.
The image above is of drumlins, or small hills. These are the things that chunks of ice get left behind in. Once the ice melts a glacial lake is formed.
The image above is a satellite image of Ireland. All of the dark blue spots around the island are glacial lakes that formed once the ice melted.
The evidence of glacial activity directly affects the people in Ireland in the sense that these features are prime locations for tourists. Not to mention that they add positive features to the landscape. Also, things like the erratic rocks are a good source of debate between religion and natural formation.
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