Ica Age

The Ice Age was a name that was used for four different events that covered the north part of the world in a sheet of ice.  This changed the entire culture of any small stone age tribe that lived in the area.  Most of the tribes were wiped out completely because food and animals were hard to find, still others moved to the south to a  more warmer climate.  Still some tribes were able to quickly adapt and survive in the colder area.  The reasons for these changes are still unknown but some people have some guesses.  One Idea is that the earth may have changed its position in its atmospheric path.  Another idea is that the continents moved very far before the Ice Age and this made the climate change.  The Next idea would be the variation of the sun's energy output, this would change heat on earth and make it easier for ice to form.  The final idea was that of Volcanism and that the earth's core cooled down making the earth an easier place for ice to form, all of this made the ice age possible.