About: http://webisa.webdatacommons.org/325935591

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	Oil and gas operations are the biggest contributors to methane from human activities in the U.S. (for many countries the biggest methane contributor is livestock), but cities appear to be significant contributors, too.
http://www.w3.org/ns/prov#wasQuotedFrom	apr.org