About: http://webisa.webdatacommons.org/336218354

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	Since carbon dioxide is a greenhouse gas, its increase has a warming effect, see the narrative, ???What Is the Greenhouse Effect???? Human activities are very likely to have contributed to the observed warming of the Earth.
http://www.w3.org/ns/prov#wasQuotedFrom	acs.org