Holocene Glacier Fluctuations in the Peruvian Andes Indicate Northern Climate Linkages

Togetherness Two of the most important questions in paleoclimatology are, how are the climates of the Northern and Southern Hemispheres linked, and what are the roles of the high latitudes and the tropics in driving and transmitting climate changes? Past investigations have concentrated on the study...

Full description

Bibliographic Details
Published in:Science
Main Authors: Licciardi, Joseph M., Schaefer, Joerg M., Taggart, Jean R., Lund, David C.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2009
Subjects:
Online Access:http://dx.doi.org/10.1126/science.1175010
https://www.science.org/doi/pdf/10.1126/science.1175010
Description
Summary:Togetherness Two of the most important questions in paleoclimatology are, how are the climates of the Northern and Southern Hemispheres linked, and what are the roles of the high latitudes and the tropics in driving and transmitting climate changes? Past investigations have concentrated on the study of large, rapid climate changes like deglaciations or the Younger Dryas because they are the easiest ones to see and to date. Licciardi et al. (p. 1677 ) expand the scope of these investigations by determining precise cosmogenic isotope ages for glacial moraines formed in the Peruvian Andes during the Holocene (the last 11,000 years). The precision of these data reveals a broad correlation between Peruvian glacial advances and climate in the North Atlantic region, revealing important climate linkages between the tropics and higher latitudes.