About: http://webisa.webdatacommons.org/99211470

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	Twenty years ago most of them were just starting to wonder whether the carbon dioxide and other gases generated by burning fossil fuels might amplify the natural greenhouse effect and threaten to overheat the planet.
http://www.w3.org/ns/prov#wasQuotedFrom	discovermagazine.com