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In 1896, Swedish scientist Svante Arrhenius theorized that adding carbon dioxide to the atmosphere by burning coal would create a "greenhouse effect" and raise the planet's average temperature. Steven Leavitt, who heads a tree-ring lab at the University of Arizona, says that the advan...

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Bibliographic Details
Published inPopular science (New York, N.Y.) Vol. 278; no. 3; p. 37
Main Author Knox, Margaret
Format Magazine Article
LanguageEnglish
Published Miami North Equity 01.03.2011
Subjects
Atmosphere
Climate change
Trees
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Summary:In 1896, Swedish scientist Svante Arrhenius theorized that adding carbon dioxide to the atmosphere by burning coal would create a "greenhouse effect" and raise the planet's average temperature. Steven Leavitt, who heads a tree-ring lab at the University of Arizona, says that the advantage to Yakir's research lies in the "newspaper samples probably representing many trees perhaps over a wide area, thereby smoothing out variability associated with differences among individual trees."
Bibliography:ObjectType-News-1
content type line 24
SourceType-Magazines-1
ISSN:0161-7370