. "2019-03-04 17:29:46.0" . . "tendency_of_atmosphere_moles_of_methane"@en . "accepted"@en . "SDN:P07::CF12S50" . . . "2" . "false" . . "2" . "" . "SDN:P07::CF12S50" . "SDN:P07::CF12S50" . . . "The phrase \"tendency_of_X\" means derivative of X with respect to time. The construction \"atmosphere_moles_of_X\" means the total number of moles of X in the entire atmosphere,i.e. summed over the atmospheric column and over the entire globe. The chemical formula for methane is CH4. Methane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species."@en . . . "2019-03-04 17:29:46.0" . . .