Volume 7, Number 44: 3 November 2004 In our many reviews of recently-published studies that reveal the existence of a widespread millennial-scale oscillation of climate, we routinely draw attention to evidence for the worldwide occurrence of the Little Ice Age, Medieval Warm Period, Dark Ages Cold Period, Roman Warm Period, etc. We here continue in this vein in reviewing a study that identifies all of the above climatic intervals -- plus others -- in the Patagonian ice fields of South America. Glasser et al. (2004) describe a large body of evidence related to glacier fluctuations in the two major ice...
