About: http://webisa.webdatacommons.org/222717183

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	Over the past 250 years, human activities such as fossil fuel burning have raised the atmospheric CO2 concentration by more than 40% over its preindustrial level of 280 ppm (parts per million).
http://www.w3.org/ns/prov#wasQuotedFrom	spacedaily.com