About: http://webisa.webdatacommons.org/325525571

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	So the greenhouse effect is a good thing however, human beings put certain gases in the atmosphere, particularly carbon dioxide, which may be enhancing the natural greenhouse effect.
http://www.w3.org/ns/prov#wasQuotedFrom	ushistory.org