My skepticism begins with the believers' certainty they can predict the global climate with a computer model. The entire basis for the doomsday climate change scenario is the hypothesis increased atmospheric carbon dioxide due to fossil fuel emissions will heat the Earth to unlivable temperatures.

In fact, the Earth has been warming very gradually for 300 years, since the Little Ice Age ended, long before heavy use of fossil fuels. Prior to the Little Ice Age, during the Medieval Warm Period, Vikings colonized Greenland and Newfoundland, when it was warmer there than today. And during Roman times, it was warmer, long before fossil fuels revolutionized civilization.

The idea it would be catastrophic if carbon dioxide were to increase and average global temperature were to rise a few degrees is preposterous.

Recently, the Intergovernmental Panel on Climate Change (IPCC) announced for the umpteenth time we are doomed unless we reduce carbon-dioxide emissions to zero. Effectively this means either reducing the population to zero, or going back 10,000 years before humans began clearing forests for agriculture. This proposed cure is far worse than adapting to a warmer world, if it actually comes about.