"tendency_of_middle_atmosphere_moles_of_methane"@en . . "accepted"@en . "1" . "2009-07-06 16:21:17.0" . . . "\"tendency_of_X\" means derivative of X with respect to time. The construction \"middle_atmosphere_moles_of_X\" means the total number of moles of X in the troposphere and stratosphere, i.e. summed over that part of 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 . . . "SDN:P07::CF12S57" . "" . . "SDN:P07::CF12S57" . "1" . "false" . "SDN:P07::CF12S57" . . . . . "2009-07-06 16:21:17.0" .