About: http://webisa.webdatacommons.org/188552414

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	Collectively, people began to perceive air and water becoming dirtier, forests and wildlife disappearing, and diseases, such as various cancers, becoming increasingly frequent.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org