How was Wales affected by ice ages?
There have been at least 5 ice ages (more accurately glacial ages) in earth's past. Outside of these ice ages the earth has been ice-free even in higher latitudes (eg. near Arctic) The most severe ice age occurred during the Cryogenian period and produced a Snowball Earth where glacial sheets even reached the equator. A minor ice age called Andean-Saharan occurred during the Late Ordovicianand Silurian Period.