About: http://webisa.webdatacommons.org/2744060

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	But only in the past century and particularly within the past fifty years, has the scale of human impacts on the earth's water cycle reached global proportions.
http://www.w3.org/ns/prov#wasQuotedFrom	fotofest.org