About: http://webisa.webdatacommons.org/111795653

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	As widespread instrumental records have only been available for 150 years, data for other centuries were reconstructed from proxies such as tree rings and ice cores, which carry traces of previous climatic conditions.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com