Solar Activity Index: Validity Supported by Oxygen Isotope Dating

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Science  01 May 1970:
Vol. 168, Issue 3931, pp. 571-572
DOI: 10.1126/science.168.3931.571


A significant correlation between oxygyn-18 concentration in a Greenland ice core and an index of solar activity supports the validity of the solar index. The correlation may result from an apparent control of temperature by solar activity.

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