About: http://webisa.webdatacommons.org/9419766

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Ancient tree rings from pinyon pines have been used as sensitive ???listening posts??? to determine climate variability and in particular drought.
http://www.w3.org/ns/prov#wasQuotedFrom	smdp.com