About: http://webisa.webdatacommons.org/227207742

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 for trace gases in the lower atmosphere, such as co2 or methane, that would also be very hard to measure from space.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org