About: http://webisa.webdatacommons.org/54435469

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	Ice cores from the large ice sheets show that the atmospheric concentration of greenhouse gases, in particular CO2 and CH4, have risen tremendously over the past 100 years compared to past natural levels.
http://www.w3.org/ns/prov#wasQuotedFrom	ku.dk