Warm and cold cycles to continueI am writing in response to Jon Nowlins letter on climate change. It was nice to see reference made to both the Medieval Warm Period and the Little Ice Age in his letter, as most global warming supporters have attempted to remove those episodes from the record, most dramatically with Michael Manns infamous "hockey stick" graph.He is, however, incorrect in one of his facts: that the temperature of today is correlating with the increase in CO2 gas in the atmosphere. There has been extensive research done on the subject (using ice cores from the Vostock …