About: http://webisa.webdatacommons.org/156117247

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	States that produce both coal and natural gas, such as Pennsylvania, would experience an economic trade-off as diminished coal production was replaced by new natural gas production. ...
http://www.w3.org/ns/prov#wasQuotedFrom	env-econ.net