About: http://webisa.webdatacommons.org/372683074

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	How do you know that carbon dioxide and other greenhouse gases are to blame, and not other factors, such as volcanoes, solar output or natural cycles?
http://www.w3.org/ns/prov#wasQuotedFrom	wisc.edu