How Warm Was the Medieval Warm Period?

@inproceedings{Crowley2000HowWW,
  title={How Warm Was the Medieval Warm Period?},
  author={Thomas J. Crowley and Thomas S. Lowery},
  year={2000}
}
Abstract A frequent conclusion based on study of individual records from the so-called Medieval Warm Period (∼1000-1300 A.D.) is that the present warmth of the 20 th century is not unusual and therefore cannot be taken as an indication of forced climate change from greenhouse gas emissions. This conclusion is not supported by published composites of Northern Hemisphere climate change, but the conclusions of such syntheses are often either ignored or challenged. In this paper, we revisit the… 
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