About: http://webisa.webdatacommons.org/238094813

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	Geological, archaeological, oral and written histories all attest to the dramatic challenges posed to past societies from unanticipated changes in temperature, precipitation, winds and other climatic variables, the scientists wrote.
http://www.w3.org/ns/prov#wasQuotedFrom	exxonsecrets.org