Considering the temperature outside I have my doubts about us ever having another ice age. At night I am seeing bugs flying around and its January. Where I live it should be only in the teens or twenties with snow on the ground then gradually creeping above freezing, not 60.
I have read that it is possible for northern countries to become much colder if the gulf stream stops from having so much fresh water dumped into it from the melting of the glaciers. That might create a ice age of sorts.