June 13, 2012 Climate Change Of course there is climate change. The climate is always changing. Actually, what would it mean to say the climate is not changing? So, when people talk of climate change they are implying “man made global warming,” a term that has been tarnished of late, not to mention a couple of record cold winters in various parts of the world also of late. For climate change, there is lots of evidence. Ice packs are receding, sea levels are rising, and temperatures are up in the last century. Researchers use even finer measures that look back centuries using data from ice cores, tree rings, and corals. Moreover, they use indices of volcanism, solar variability, changes in GHGs (Greenhouse Gases), and tropospheric aerosols. Then, they build models based on all this showing that standard deviations are terrifically small for the nine centuries prior to the 20 th where the changes took place. They conclude that “most of the warming must be du
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