About: http://webisa.webdatacommons.org/53588426

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	To work from there you need to know how much photosynthesizing material is involved and that is a three dimensional thing, including all land and water.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com