About: http://webisa.webdatacommons.org/417712362

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	And good history of environmental movements (John McNeill 'Something New Under the Sun: an environmental history of the 20th century' is a good place to start, well referenced) or anyone who remembers the time can tell you that.
http://www.w3.org/ns/prov#wasQuotedFrom	typepad.com