About: http://webisa.webdatacommons.org/234420593

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	So-called unconventional oil ??? shale oil, tar sands and biofuels ??? are the most controversial forms of the fuel, because they are much more carbon-intensive than conventional oilfields.
http://www.w3.org/ns/prov#wasQuotedFrom	warincontext.org