Article ID: CBB001034650

Claiming and Adjudicating on Mt. Kilimanjaro's Shrinking Glaciers: Guy Callendar, Al Gore and Extended Peer Communities (2010)

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Climate change has mutated from being a physical phenomenon to be studied to an idea to be contested. The sites of adjudication between competing truth claims have therefore moved from the secluded academy and scientific peer review to the vociferous agora and the extended peer community. This move is illustrated here using the case of the shrinking glaciers of Mt Kilimanjaro. Both the British engineer Guy Callendar, in 1944, and the American campaigner Al Gore, in 2006, claimed that the primary cause of this glacial recession was rising world temperature. Both were passionate believers in the reality of human-induced global warming, but they had very different resources at their disposal to advance these beliefs. While Callendar's claim was revealed only to the editor of the science journal Nature, Gore's claims were visible to millions through his film An Inconvenient Truth. While the force of Callendar's claim was weighed and adjudicated by one peer reviewer, the validity of Gore's claim was tested very publicly in the British courts. Both claims about the cause of Kilimanjaro's retreating glaciers were found wanting. The paper argues that this simple, but powerful, comparison between identical claims-making drawn from two different eras of science, yet with contrasting processes of truth-adjudication, illuminates the different `post-normal' world of science climate change now inhabits. The case study is used to reflect on the role of the extended peer community in establishing and validating scientific knowledge about climate change: who participates, how trust is stabilised and whether science is thereby democratised.

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Authors & Contributors
Sörlin, Sverker
Ken Rice
Dana Nuccitelli
Tatiana Pina
Martin, Max
Peter Jacobs
Journals
Public Understanding of Science
Wiley Interdisciplinary Reviews: Climate Change
Osiris: A Research Journal Devoted to the History of Science and Its Cultural Influences
Bulletin of Science, Technology & Society
Encyclopedia of the History of Science
Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences
Publishers
Palgrave Macmillan
Cambridge University Press
University of Arizona
Concepts
Climate change
Public understanding of science
Climate and climatology
Communication of scientific ideas
Controversies and disputes
Global warming
People
Nierenberg, William Aaron
Hartlib, Samuel
Callendar, Guy Stewart
Buch, Kurt
Ahlmann, Hans Wilhelmsson
Time Periods
21st century
20th century, late
20th century
17th century
Places
United States
Sweden
Polar regions
Great Britain
Islands of the Pacific
Scandinavia; Nordic countries
Institutions
National Academy of Sciences (U.S.)
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