During the Heartland Institute's 15th International Conference on Climate Change ("ICCC15") in February, Dr. Soon used data from rural temperature stations to avoid urban heat island contamination of the temperature data and considered whether solar activity can explain global warming at rural stations. As his Heartland Institute talk was limited to 20 minutes, he met with Tom Nelson a week later to go through his presentation more thoroughly. You can find the slides for his presentation HERE. Between the 1930s and the 1940s Joseph Kincer noted that temperatures had been increasing worldwide for decades. During the 1940s and the 1970s Kincer noted that the warming had stopped and was reversing. Others confirmed the global cooling. How was this possible? "It's basically how they adjusted the data, it's the homogenisation problem," Dr. Soon said.