Describe how Pangaea's climate was different than current climate in the United States (example: Michigan).

Let's take, Michigan 200 million years ago. Average carbon dioxide levels would have been 1850 parts per million which means that global temperatures would average 3 degrees warmer than today. Michigan was positioned between the cold sea current to the west and mountain ranges to the east (as tall as the Himalayas are today). So the climate in Michigan at this time must have been an extremely arid desert.