Seriesly, Rex? There are records that show virtually half the entire northern hemisphere was under a sheet of ice as recently as 12,000 years ago. Records also show there have been several periods in Earth's history known as Ice Ages.
Is that what you would like to go back to Rex?
I didn't think so. Now be a good boy and go fetch me a beer. An ice cold one.
You forgot to ask Rex to fetch you a sammich to go with that cold one.