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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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Published in | Popular science (New York, N.Y.) Vol. 278; no. 3; p. 37 |
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Main Author | |
Format | Magazine Article |
Language | English |
Published |
Miami
North Equity
01.03.2011
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Subjects | |
Online Access | Get full text |
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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." |
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Bibliography: | ObjectType-News-1 content type line 24 SourceType-Magazines-1 |
ISSN: | 0161-7370 |