Harvard scientists study tree rings see climate change clues

Tree rings could hold clues to climate change and forest change.

Related Keywords

Mexico , New York , United States , Ricketts Glen , Pennsylvania , Maine , New Jersey , Massachusetts , Petersham , Boston , Indonesia , America , Neil Pederson Yellowbuckeye , Gayle Smith , David Orwig , Tree Ring Lab , National Science Foundation , Harvard Tree Ring Lab , Neil Pederson , Black Rat Snake , Sugar Maple , Harvard Forest , Year Without , Gas , Arvard Faculty Of Arts And Sciences , Laura Gayle Smith , Sf , Tree Rings ,