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Some of you might find this interesting. https://www.nytimes.com/2019/04/30/science/tree-rings-climate.html -- Bruce Ralston Professor Emeritus Department of Geography University of Tennessee Knoxville, TN 37996-0925 FAX: 865-974-6025 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- To review the archives of CLUBGGY or Join/Leave the list go to: http://listserv.utk.edu/archives/clubggy.html