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Nobody here questions whether or not the earth has had natural cooling / warming cycles in the past. But you might as well throw out all that data because man has introduced another variable in the equation that has not been present for the past 4.5 billion years - the greenhouse gases created by the burning of fossil fuels.
Nobody here questions whether or not the earth has had natural cooling / warming cycles in the past. But you might as well throw out all that data because man has introduced another variable in the equation that has not been present for the past 4.5 billion years - the greenhouse gases created by the burning of fossil fuels.