Tree Rings Reveal Centuries of Climate Patterns

· Apr. 5, 2010, 3:59 pm

Tree rings don't just reveal the age of a tree.They also indicate how wet or dry it was when they formed.Scientists who study tree rings have found periods of extended drought in the west—going back hundreds of years.Water managers are paying close attention.Ryan Warner speaks with Connie Woodhouse, who specializes in reconstructing climates from tree rings.

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