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Science 13 September 1991:
Vol. 253. no. 5025, pp. 1266 - 1268
DOI: 10.1126/science.253.5025.1266

Articles

Climatic Change in Tasmania Inferred from a 1089-Year Tree-Ring Chronology of Huon Pine

EDWARD COOK 1, TREVOR BIRD 2, MIKE PETERSON 3, MIKE BARBETTI 4, BRENDAN BUCKLEY 1, ROSANNE D'ARRIGO 1, ROGER FRANCEY 5, and PIETER TANS 6

1 Tree-Ring Laboratory, Lamont-Doherty Geological Observatory, Palisades, NY 10964
2 Tasmanian Trades and Labour Council, Forestry Unit, New Town, Tasmania 7008, Australia
3 Tasmania Forestry Commission, Hobart, Tasmania 7001, Australia
4 Barbetti, N. W. G. Macintosh Centre, University of Sydney, New South Wales 2006, Australia
5 Commonwealth Scientific and Industrial Research Organization (CSIRO), Division of Atmospheric Research, Mordialloc, Victoria 3195, Australia
6 Climate Monitoring and Diagnostics Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado 80309

A climatically sensitive huon pine tree-ring chronology from western Tasmania allows inferences about Austral summer temperature change since A.D. 900. Since 1965, huon pine growth has been unusually rapid for trees that are in many cases over 700 years old. This growth increase correlates well with recent anomalous warming in Tasmania on the basis of instrumental records and supports claims that a climatic change, perhaps influenced by greenhouse gases, is in progress. Although this temperature increase exceeds any that are inferred to have occurred during the past 1089 years at this location, it has not yet clearly emerged from the natural background variability of climate in this part of the Southern Hemisphere.

Submitted on March 19, 1991
Accepted on June 21, 1991


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Science. ISSN 0036-8075 (print), 1095-9203 (online)