Nobody denies that climate change occurs all the time - the controversy is about whether the cause is natural or man-made. People who believe climate change is human-caused don't read enough. They believe what they see on TV or on the leftist blog sites. The temperature of our planet is cyclical, and varies from 'warming' to 'cooling.' Many of the scientists who initially bought into the idea of human-caused "global warming" have since changed their opinion, particularly over the past 10 years, when the temperature of the planet has clearly been cooling. As exemplified by Algore, there's lots of money to be made by those who are pushing the idea of human-caused global warming by investing in companies related to 'saving the planet.'..