About: http://webisa.webdatacommons.org/17869826

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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	Joe Born says: December 5, 2012 at 4:28 am The argument occasionally encountered is that a large part of the ???natural???-sourced mercury in the atmosphere is actually recycled from human activities such as mining.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com