About: http://webisa.webdatacommons.org/76906284

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	I would nominate acid rain and climate change as members of this class, along with other forms of pollution that involve distant transport and mixing of pollution from multiple sources.
http://www.w3.org/ns/prov#wasQuotedFrom	economonitor.com