About: http://webisa.webdatacommons.org/287214542

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	The challenge now is to encourage the adoption of more efficient irrigation systems, more appropriate cropping patterns, and other measures to bring the world???s groundwater accounts into balance.
http://www.w3.org/ns/prov#wasQuotedFrom	nationalgeographic.com