About: http://webisa.webdatacommons.org/205837519

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	CellEra suggests ammonia as a source for hydrogen, but that only defers the problem, since industrial ammonia is produced mainly from natural gas and to some extent from petroleum sources.
http://www.w3.org/ns/prov#wasQuotedFrom	cleantechnica.com