The statement that CO2 levels and temperatures “track together in the geologic record” is not even grossly right; it is precisely wrong. A report by the CO2 Coalition, Carbon Dioxide Benefits the World: See for Yourself, contains a figure, CO2 Levels on Earth, that shows CO2 levels 600 million years in the past. The following figure clearly shows that over the course of geologic history, CO2 have been declining, while temperatures have increased and decreased.
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