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  • Title: Holocene glacier fluctuations in the Peruvian Andes indicate northern climate linkages.
    Author: Licciardi JM, Schaefer JM, Taggart JR, Lund DC.
    Journal: Science; 2009 Sep 25; 325(5948):1677-9. PubMed ID: 19779196.
    Abstract:
    The role of the tropics in triggering, transmitting, and amplifying interhemispheric climate signals remains a key debate in paleoclimatology. Tropical glacier fluctuations provide important insight on regional paleoclimatic trends and forcings, but robust chronologies are scarce. Here, we report precise moraine ages from the Cordillera Vilcabamba (13 degrees 20'S) of southern Peru that indicate prominent glacial events and associated climatic shifts in the outer tropics during the early Holocene and late in the "Little Ice Age" period. Our glacier chronologies differ from the New Zealand record but are broadly correlative with well-dated glacial records in Europe, suggesting climate linkages between the tropics and the North Atlantic region.
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