If the supposed scientists would look back at history they would see that the earth goes through cycles of warming and cooling. It is the earths way of breathing. All one has tro do is to look at Greenland. There is a reason that Greenland was named Greenland by the early Vikings. It was because it was a lush green land where farming was done in the center of the island. Today this area is covered by an ice sheet several hundred feet deep. So if there is global warming why was Greenland once green? It has to do with the cycle the earth continuously goes through. So the earth had to cool down a lot for the ice to form in Greenland. So you alarmist scientists please explain what caused this cooling.