Greenhouse warming or Little Ice Age demise: A critical problem for climatology

SummaryA comparative analysis of long-term (several-hundred-year) temperature and carbon dioxide (CO2) trends suggests that the global warming of the past century is not due to the widely accepted CO2 greenhouse effect but rather to the natural recovery of the Earth from the global chill of the Little Ice Age, which was both initiated and ended by some unrelated phenomenon, the latter expression of which is the very warming generally attributed to the CO2 increase of the past century.