For a geographer that studies past climate the idea of areas of the world being covered by ice in the past that are now forest, fields and towns seems quite normal, but for many school students that seems a very bizarre concept.
I used the excellent video developed by the Aberystwyth University Glaciology research group to show the students how big the British and Irish ice sheet was and how it grew and shrunk during the last glaciation. I also created an image to show the students thick the ice sheet was. This somewhat blew their minds!
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