Michael Mann created a widely known graph commonly referred to as a "hockey stick." His data shows that the temperature has increased significantly at the same time as man has started pumping CO2 and other greenhouse gases into the atmosphere. Climate deniers tried to refute his results accusing Mann of using faulty statistics, some even suggested that he was guilty of fraud. Although there is some variability, a host of scientists have corroborated Mann's hockey stick. If anything newer research suggests that the earth has gotten even warmer than suggested by Mann's hockey stick.
© 2012, Richard Matthews. All rights reserved.
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