Article ID: CBB197231151

The Yale Geochronometric Laboratory and the Rewriting of Global Environmental History (2023)

unapi

Beginning in the nineteenth century, scientists speculated that the Pleistocene megafauna—species such as the giant ground sloth, wooly mammoth, and saber-tooth cat—perished because of rapid climate change accompanying the end of the most recent Ice Age. In the 1950s, a small network of ecologists challenged this view in collaboration with archeologists who used the new tool of radiocarbon dating. The Pleistocene overkill hypothesis imagined human hunting, not climate change, to be the primary cause of megafaunal extinction. This article situates the Pleistocene overkill hypothesis in a broader history of the emergence of historical ecology as a distinct sub-discipline of paleoecology. Tracing the work of the Yale Geochronometric Laboratory and an interdisciplinary research network that included Paul Sears, Richard Foster Flint, Edward Deevey, Kathryn Clisby, and Paul S. Martin, it reveals how both the methods and the meaning of studying fossil pollen shifted between the 1910s and 1960s. First used as a tool for fossil fuel extraction, fossil pollen became a means of envisioning climatic history, and ultimately, a means of reimagining global ecological history. First through pollen stratigraphy and then through radiocarbon dating, ecologists reconstructed past biotic communities and rethought the role of humans in these communities. By the 1980s, the discipline of historical ecology would reshape physical environments through the practice of ecological restoration.

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Authors & Contributors
Slack, Nancy G.
Charenko, Melissa
Barlow, Connie
Berry, William B. N.
Branagan, David F.
Brandão, José Manuel
Journals
Earth Sciences History: Journal of the History of the Earth Sciences Society
Journal of the History of Biology
História, Ciências, Saúde---Manguinhos
Historical Studies in the Natural Sciences
Tapuya: Latin American Science, Technology and Society
Publishers
Basic Books
Columbia University Press
Community Printing
Minerva
Olschki
University of Pittsburgh Press
Concepts
Geology
Ecology
Fossils
Climate and climatology
Paleontology
Stratigraphy
People
Hutchinson, George Evelyn
Deshayes, Gérard Paul
Harrison, Ross Granville
Kleinpell, Robert
Pickford, Grace Evelyn
Ribeiro, Carlos
Time Periods
19th century
20th century
20th century, early
21st century
Pleistocene
17th century
Places
Italy
Great Britain
Chile
Soviet Union
Australia
Europe
Institutions
Yale University
Natural History Museum (London, England)
University of California, Berkeley
British Museum
University of Padua
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