About: http://webisa.webdatacommons.org/154478856

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	Carl Sagan and other scientists further popularized the idea by proposing that a similar scenario of long-term darkened skies and freezing cold could happen after a nuclear exchange.
http://www.w3.org/ns/prov#wasQuotedFrom	popmatters.com